The Fresh York Times

June 30, 2016

DETROIT — The race by automakers and technology firms to develop self-driving cars has been fueled by the belief that computers can operate a vehicle more securely than human drivers.

But that view is now in question after the revelation on Thursday that the driver of a Tesla Model S electrical sedan was killed in an accident when the car was in self-driving mode.

Federal regulators, who are in the early stages of setting guidelines for autonomous vehicles, have opened a formal investigation into the incident, which occurred on May seven in Williston, Fla.

In a statement, the National Highway Traffic Safety Administration said preliminary reports indicated that the crash occurred when a tractor-trailer made a left turn in front of the Tesla, and the car failed to apply the brakes.

It is the very first known fatal accident involving a vehicle being driven by itself by means of sophisticated computer software, sensors, cameras and radar.

The safety agency did not identify the Tesla driver who was killed. But the Florida Highway Patrol identified him as Joshua Brown, 40, of Canton, Ohio.

He was a Navy veteran who wielded a technology consulting rock-hard. In a news release, Tesla on Thursday described him as a man “who spent his life focused on innovation and the promise of technology and who believed strongly in Tesla’s mission.”

Mr. Brown posted movies of himself railing in autopilot mode. “The car’s doing it all itself,’’ he said in one, smiling as he took his palms from the steering wheel.

[Movie: Joshua Brown demonstrating the Tesla’s “autopilot” mode. Witness on YouTube.]

In another, he praised the system for saving his car from an accident.

The death is a deep-throat to Tesla at a time when the company is pushing to expand its product lineup from expensive electrical vehicles to more mainstream models. The company on Thursday declined to say whether the technology or the driver or either were at fault in the accident.

In its news release it said, “Neither autopilot nor the driver noticed the white side of the tractor-trailer against a brightly lit sky, so the brake was not applied.”

The crash also casts doubt on whether autonomous vehicles in general can consistently make split-second, life-or-death driving decisions on the highway.

And other companies are enhancing investments in self-driving technology. Google, for example, recently announced plans to adapt one hundred Chrysler minivans for autonomous driving. Earlier this year, G.M. acquired the software hard Cruise Automation to accelerate its own self-driving applications.

Even as the companies conduct many tests on autonomous vehicles at both private facilities and on public highways, there is skepticism that the technology has progressed far enough for the government to approve cars that totally drive themselves.

The traffic safety agency said it was working with the Florida Highway Patrol in the inquiry into Mr. Brown’s fatal accident. The agency cautioned that the opening of an investigation did not mean it thought there was a defect in the vehicle being examined.

The federal traffic safety agency is nearing the release of a fresh set of guidelines and regulations regarding the testing of self-driving vehicles on public roads. They are expected to be released in July.

At a latest technology conference in Novi, Mich., the agency’s leader, Mark Rosekind, said self-driving cars should at least be twice as safe as human drivers to result in a significant reduction in roadway deaths. “We need to commence with two times better,’’ Mr. Rosekind said. “We need to set a higher bar if we expect safety to actually be a benefit here.”

Karl Brauer, an analyst with the auto research rock-hard Kelley Blue Book, said the accident served as a signal that the technology might not be as advanced and ready for the market as some proponents have suggested.

“This is a bit of a wake-up call,” Mr. Brauer said. “People who were maybe too aggressive in taking the position that we’re almost there, this technology is going to be in the market very soon, maybe need to reassess that.”

Tesla said in its news release that it had informed the traffic safety agency about the accident “immediately after it occurred.” But the company reported it publicly only on Thursday, after learning that the agency had begun to investigate.

Mr. Brown had spent eleven years in the Navy and then founded a technology consulting company, Nexu Innovations, according to a May obituary of Mr. Brown in The Greensburg Tribune Review in Westmoreland County, Pa., where he had formerly lived.

An excerpt of Joshua Brown’s obituary from The Greensburg Tribune Review in Westmoreland County, Pa., where he had formerly lived.

The Nexu Innovations website, describing Mr. Brown as founder and possessor, said that in the Navy he had been on active duty as a “master explosive ordnance disposition technician,” including a stint with the Naval Special Warfare Development Group, which is commonly known as SEAL Team 6.

Ricky Hammer, a retired Navy master chief who worked with Mr. Brown at the development group, said Mr. Brown had strong computer abilities and “was the equivalent of an electrical engineer even however he didn’t have the degree.”

In Iraq in 2006, he said, Mr. Brown played a crucial role in preparing captured explosive projectiles for shipment to the United States to support efforts to improve the armor on military vehicles.

“He did it by being very aggressive,” Mr. Hammer said, noting that Mr. Brown helped to collect the projectiles after raids on bomb-making shops and would X-ray them to determine their contents.

In the past, Elon Musk, the Tesla chief executive, has praised the company’s self-driving feature, introduced in the Model S last fall, as “probably better than a person right now.”

But in its statement on Thursday, the company cautioned that it was still only a test feature and noted that its use ‘‘requires explicit acknowledgment that the system is fresh technology.’’

It noted that when a driver activated the system, an acknowledgment box popped up, explaining that the autopilot mode “is an assist feature that requires you to keep your mitts on the steering wheel at all times.”

An earlier version of this article misstated the location of Williston, Fla. It is about one hundred miles northwest of Orlando, not one hundred miles northeast of it.

Hiroko Tabuchi, Alain Delaqueriere and Christopher Drew contributed reporting from Fresh York, and John Ismay from Los Angeles.

Self-Driving Tesla Was Involved in Fatal Crash, U

The Fresh York Times

June 30, 2016

DETROIT — The race by automakers and technology firms to develop self-driving cars has been fueled by the belief that computers can operate a vehicle more securely than human drivers.

But that view is now in question after the revelation on Thursday that the driver of a Tesla Model S electrical sedan was killed in an accident when the car was in self-driving mode.

Federal regulators, who are in the early stages of setting guidelines for autonomous vehicles, have opened a formal investigation into the incident, which occurred on May seven in Williston, Fla.

In a statement, the National Highway Traffic Safety Administration said preliminary reports indicated that the crash occurred when a tractor-trailer made a left turn in front of the Tesla, and the car failed to apply the brakes.

It is the very first known fatal accident involving a vehicle being driven by itself by means of sophisticated computer software, sensors, cameras and radar.

The safety agency did not identify the Tesla driver who was killed. But the Florida Highway Patrol identified him as Joshua Brown, 40, of Canton, Ohio.

He was a Navy veteran who possessed a technology consulting rigid. In a news release, Tesla on Thursday described him as a man “who spent his life focused on innovation and the promise of technology and who believed strongly in Tesla’s mission.”

Mr. Brown posted movies of himself railing in autopilot mode. “The car’s doing it all itself,’’ he said in one, smiling as he took his forearms from the steering wheel.

[Movie: Joshua Brown demonstrating the Tesla’s “autopilot” mode. Witness on YouTube.]

In another, he praised the system for saving his car from an accident.

The death is a deep-throat to Tesla at a time when the company is pushing to expand its product lineup from expensive electrical vehicles to more mainstream models. The company on Thursday declined to say whether the technology or the driver or either were at fault in the accident.

In its news release it said, “Neither autopilot nor the driver noticed the white side of the tractor-trailer against a brightly lit sky, so the brake was not applied.”

The crash also casts doubt on whether autonomous vehicles in general can consistently make split-second, life-or-death driving decisions on the highway.

And other companies are enlargening investments in self-driving technology. Google, for example, recently announced plans to adapt one hundred Chrysler minivans for autonomous driving. Earlier this year, G.M. acquired the software rock hard Cruise Automation to accelerate its own self-driving applications.

Even as the companies conduct many tests on autonomous vehicles at both private facilities and on public highways, there is skepticism that the technology has progressed far enough for the government to approve cars that totally drive themselves.

The traffic safety agency said it was working with the Florida Highway Patrol in the inquiry into Mr. Brown’s fatal accident. The agency cautioned that the opening of an investigation did not mean it thought there was a defect in the vehicle being examined.

The federal traffic safety agency is nearing the release of a fresh set of guidelines and regulations regarding the testing of self-driving vehicles on public roads. They are expected to be released in July.

At a latest technology conference in Novi, Mich., the agency’s leader, Mark Rosekind, said self-driving cars should at least be twice as safe as human drivers to result in a significant reduction in roadway deaths. “We need to embark with two times better,’’ Mr. Rosekind said. “We need to set a higher bar if we expect safety to actually be a benefit here.”

Karl Brauer, an analyst with the auto research rigid Kelley Blue Book, said the accident served as a signal that the technology might not be as advanced and ready for the market as some proponents have suggested.

“This is a bit of a wake-up call,” Mr. Brauer said. “People who were maybe too aggressive in taking the position that we’re almost there, this technology is going to be in the market very soon, maybe need to reassess that.”

Tesla said in its news release that it had informed the traffic safety agency about the accident “immediately after it occurred.” But the company reported it publicly only on Thursday, after learning that the agency had begun to investigate.

Mr. Brown had spent eleven years in the Navy and then founded a technology consulting company, Nexu Innovations, according to a May obituary of Mr. Brown in The Greensburg Tribune Review in Westmoreland County, Pa., where he had formerly lived.

An excerpt of Joshua Brown’s obituary from The Greensburg Tribune Review in Westmoreland County, Pa., where he had formerly lived.

The Nexu Innovations website, describing Mr. Brown as founder and holder, said that in the Navy he had been on active duty as a “master explosive ordnance disposition technician,” including a stint with the Naval Special Warfare Development Group, which is commonly known as SEAL Team 6.

Ricky Hammer, a retired Navy master chief who worked with Mr. Brown at the development group, said Mr. Brown had strong computer abilities and “was the equivalent of an electrical engineer even tho’ he didn’t have the degree.”

In Iraq in 2006, he said, Mr. Brown played a crucial role in preparing captured explosive projectiles for shipment to the United States to support efforts to improve the armor on military vehicles.

“He did it by being very aggressive,” Mr. Hammer said, noting that Mr. Brown helped to collect the projectiles after raids on bomb-making shops and would X-ray them to determine their contents.

In the past, Elon Musk, the Tesla chief executive, has praised the company’s self-driving feature, introduced in the Model S last fall, as “probably better than a person right now.”

But in its statement on Thursday, the company cautioned that it was still only a test feature and noted that its use ‘‘requires explicit acknowledgment that the system is fresh technology.’’

It noted that when a driver activated the system, an acknowledgment box popped up, explaining that the autopilot mode “is an assist feature that requires you to keep your arms on the steering wheel at all times.”

An earlier version of this article misstated the location of Williston, Fla. It is about one hundred miles northwest of Orlando, not one hundred miles northeast of it.

Hiroko Tabuchi, Alain Delaqueriere and Christopher Drew contributed reporting from Fresh York, and John Ismay from Los Angeles.

Self-Driving Tesla Was Involved in Fatal Crash, U

The Fresh York Times

June 30, 2016

DETROIT — The race by automakers and technology firms to develop self-driving cars has been fueled by the belief that computers can operate a vehicle more securely than human drivers.

But that view is now in question after the revelation on Thursday that the driver of a Tesla Model S electrical sedan was killed in an accident when the car was in self-driving mode.

Federal regulators, who are in the early stages of setting guidelines for autonomous vehicles, have opened a formal investigation into the incident, which occurred on May seven in Williston, Fla.

In a statement, the National Highway Traffic Safety Administration said preliminary reports indicated that the crash occurred when a tractor-trailer made a left turn in front of the Tesla, and the car failed to apply the brakes.

It is the very first known fatal accident involving a vehicle being driven by itself by means of sophisticated computer software, sensors, cameras and radar.

The safety agency did not identify the Tesla driver who was killed. But the Florida Highway Patrol identified him as Joshua Brown, 40, of Canton, Ohio.

He was a Navy veteran who possessed a technology consulting hard. In a news release, Tesla on Thursday described him as a man “who spent his life focused on innovation and the promise of technology and who believed strongly in Tesla’s mission.”

Mr. Brown posted movies of himself railing in autopilot mode. “The car’s doing it all itself,’’ he said in one, smiling as he took his mitts from the steering wheel.

[Movie: Joshua Brown demonstrating the Tesla’s “autopilot” mode. See on YouTube.]

In another, he praised the system for saving his car from an accident.

The death is a suck to Tesla at a time when the company is pushing to expand its product lineup from expensive electrical vehicles to more mainstream models. The company on Thursday declined to say whether the technology or the driver or either were at fault in the accident.

In its news release it said, “Neither autopilot nor the driver noticed the white side of the tractor-trailer against a brightly lit sky, so the brake was not applied.”

The crash also casts doubt on whether autonomous vehicles in general can consistently make split-second, life-or-death driving decisions on the highway.

And other companies are enhancing investments in self-driving technology. Google, for example, recently announced plans to adapt one hundred Chrysler minivans for autonomous driving. Earlier this year, G.M. acquired the software stiff Cruise Automation to accelerate its own self-driving applications.

Even as the companies conduct many tests on autonomous vehicles at both private facilities and on public highways, there is skepticism that the technology has progressed far enough for the government to approve cars that totally drive themselves.

The traffic safety agency said it was working with the Florida Highway Patrol in the inquiry into Mr. Brown’s fatal accident. The agency cautioned that the opening of an investigation did not mean it thought there was a defect in the vehicle being examined.

The federal traffic safety agency is nearing the release of a fresh set of guidelines and regulations regarding the testing of self-driving vehicles on public roads. They are expected to be released in July.

At a latest technology conference in Novi, Mich., the agency’s leader, Mark Rosekind, said self-driving cars should at least be twice as safe as human drivers to result in a significant reduction in roadway deaths. “We need to commence with two times better,’’ Mr. Rosekind said. “We need to set a higher bar if we expect safety to actually be a benefit here.”

Karl Brauer, an analyst with the auto research stiff Kelley Blue Book, said the accident served as a signal that the technology might not be as advanced and ready for the market as some proponents have suggested.

“This is a bit of a wake-up call,” Mr. Brauer said. “People who were maybe too aggressive in taking the position that we’re almost there, this technology is going to be in the market very soon, maybe need to reassess that.”

Tesla said in its news release that it had informed the traffic safety agency about the accident “immediately after it occurred.” But the company reported it publicly only on Thursday, after learning that the agency had begun to investigate.

Mr. Brown had spent eleven years in the Navy and then founded a technology consulting company, Nexu Innovations, according to a May obituary of Mr. Brown in The Greensburg Tribune Review in Westmoreland County, Pa., where he had formerly lived.

An excerpt of Joshua Brown’s obituary from The Greensburg Tribune Review in Westmoreland County, Pa., where he had formerly lived.

The Nexu Innovations website, describing Mr. Brown as founder and proprietor, said that in the Navy he had been on active duty as a “master explosive ordnance disposition technician,” including a stint with the Naval Special Warfare Development Group, which is commonly known as SEAL Team 6.

Ricky Hammer, a retired Navy master chief who worked with Mr. Brown at the development group, said Mr. Brown had strong computer abilities and “was the equivalent of an electrical engineer even however he didn’t have the degree.”

In Iraq in 2006, he said, Mr. Brown played a crucial role in preparing captured explosive projectiles for shipment to the United States to support efforts to improve the armor on military vehicles.

“He did it by being very aggressive,” Mr. Hammer said, noting that Mr. Brown helped to collect the projectiles after raids on bomb-making shops and would X-ray them to determine their contents.

In the past, Elon Musk, the Tesla chief executive, has praised the company’s self-driving feature, introduced in the Model S last fall, as “probably better than a person right now.”

But in its statement on Thursday, the company cautioned that it was still only a test feature and noted that its use ‘‘requires explicit acknowledgment that the system is fresh technology.’’

It noted that when a driver activated the system, an acknowledgment box popped up, explaining that the autopilot mode “is an assist feature that requires you to keep your palms on the steering wheel at all times.”

An earlier version of this article misstated the location of Williston, Fla. It is about one hundred miles northwest of Orlando, not one hundred miles northeast of it.

Hiroko Tabuchi, Alain Delaqueriere and Christopher Drew contributed reporting from Fresh York, and John Ismay from Los Angeles.

Self-Driving Tesla Was Involved in Fatal Crash, U

The Fresh York Times

June 30, 2016

DETROIT — The race by automakers and technology firms to develop self-driving cars has been fueled by the belief that computers can operate a vehicle more securely than human drivers.

But that view is now in question after the revelation on Thursday that the driver of a Tesla Model S electrical sedan was killed in an accident when the car was in self-driving mode.

Federal regulators, who are in the early stages of setting guidelines for autonomous vehicles, have opened a formal investigation into the incident, which occurred on May seven in Williston, Fla.

In a statement, the National Highway Traffic Safety Administration said preliminary reports indicated that the crash occurred when a tractor-trailer made a left turn in front of the Tesla, and the car failed to apply the brakes.

It is the very first known fatal accident involving a vehicle being driven by itself by means of sophisticated computer software, sensors, cameras and radar.

The safety agency did not identify the Tesla driver who was killed. But the Florida Highway Patrol identified him as Joshua Brown, 40, of Canton, Ohio.

He was a Navy veteran who wielded a technology consulting rigid. In a news release, Tesla on Thursday described him as a man “who spent his life focused on innovation and the promise of technology and who believed strongly in Tesla’s mission.”

Mr. Brown posted movies of himself railing in autopilot mode. “The car’s doing it all itself,’’ he said in one, smiling as he took his mitts from the steering wheel.

[Movie: Joshua Brown demonstrating the Tesla’s “autopilot” mode. See on YouTube.]

In another, he praised the system for saving his car from an accident.

The death is a deep-throat to Tesla at a time when the company is pushing to expand its product lineup from expensive electrified vehicles to more mainstream models. The company on Thursday declined to say whether the technology or the driver or either were at fault in the accident.

In its news release it said, “Neither autopilot nor the driver noticed the white side of the tractor-trailer against a brightly lit sky, so the brake was not applied.”

The crash also casts doubt on whether autonomous vehicles in general can consistently make split-second, life-or-death driving decisions on the highway.

And other companies are enlargening investments in self-driving technology. Google, for example, recently announced plans to adapt one hundred Chrysler minivans for autonomous driving. Earlier this year, G.M. acquired the software stiff Cruise Automation to accelerate its own self-driving applications.

Even as the companies conduct many tests on autonomous vehicles at both private facilities and on public highways, there is skepticism that the technology has progressed far enough for the government to approve cars that totally drive themselves.

The traffic safety agency said it was working with the Florida Highway Patrol in the inquiry into Mr. Brown’s fatal accident. The agency cautioned that the opening of an investigation did not mean it thought there was a defect in the vehicle being examined.

The federal traffic safety agency is nearing the release of a fresh set of guidelines and regulations regarding the testing of self-driving vehicles on public roads. They are expected to be released in July.

At a latest technology conference in Novi, Mich., the agency’s leader, Mark Rosekind, said self-driving cars should at least be twice as safe as human drivers to result in a significant reduction in roadway deaths. “We need to begin with two times better,’’ Mr. Rosekind said. “We need to set a higher bar if we expect safety to actually be a benefit here.”

Karl Brauer, an analyst with the auto research rock hard Kelley Blue Book, said the accident served as a signal that the technology might not be as advanced and ready for the market as some proponents have suggested.

“This is a bit of a wake-up call,” Mr. Brauer said. “People who were maybe too aggressive in taking the position that we’re almost there, this technology is going to be in the market very soon, maybe need to reassess that.”

Tesla said in its news release that it had informed the traffic safety agency about the accident “immediately after it occurred.” But the company reported it publicly only on Thursday, after learning that the agency had begun to investigate.

Mr. Brown had spent eleven years in the Navy and then founded a technology consulting company, Nexu Innovations, according to a May obituary of Mr. Brown in The Greensburg Tribune Review in Westmoreland County, Pa., where he had formerly lived.

An excerpt of Joshua Brown’s obituary from The Greensburg Tribune Review in Westmoreland County, Pa., where he had formerly lived.

The Nexu Innovations website, describing Mr. Brown as founder and possessor, said that in the Navy he had been on active duty as a “master explosive ordnance disposition technician,” including a stint with the Naval Special Warfare Development Group, which is commonly known as SEAL Team 6.

Ricky Hammer, a retired Navy master chief who worked with Mr. Brown at the development group, said Mr. Brown had strong computer abilities and “was the equivalent of an electrical engineer even tho’ he didn’t have the degree.”

In Iraq in 2006, he said, Mr. Brown played a crucial role in preparing captured explosive projectiles for shipment to the United States to support efforts to improve the armor on military vehicles.

“He did it by being very aggressive,” Mr. Hammer said, noting that Mr. Brown helped to collect the projectiles after raids on bomb-making shops and would X-ray them to determine their contents.

In the past, Elon Musk, the Tesla chief executive, has praised the company’s self-driving feature, introduced in the Model S last fall, as “probably better than a person right now.”

But in its statement on Thursday, the company cautioned that it was still only a test feature and noted that its use ‘‘requires explicit acknowledgment that the system is fresh technology.’’

It noted that when a driver activated the system, an acknowledgment box popped up, explaining that the autopilot mode “is an assist feature that requires you to keep your palms on the steering wheel at all times.”

An earlier version of this article misstated the location of Williston, Fla. It is about one hundred miles northwest of Orlando, not one hundred miles northeast of it.

Hiroko Tabuchi, Alain Delaqueriere and Christopher Drew contributed reporting from Fresh York, and John Ismay from Los Angeles.

Self-Driving Tesla Was Involved in Fatal Crash, U

The Fresh York Times

June 30, 2016

DETROIT — The race by automakers and technology firms to develop self-driving cars has been fueled by the belief that computers can operate a vehicle more securely than human drivers.

But that view is now in question after the revelation on Thursday that the driver of a Tesla Model S electrical sedan was killed in an accident when the car was in self-driving mode.

Federal regulators, who are in the early stages of setting guidelines for autonomous vehicles, have opened a formal investigation into the incident, which occurred on May seven in Williston, Fla.

In a statement, the National Highway Traffic Safety Administration said preliminary reports indicated that the crash occurred when a tractor-trailer made a left turn in front of the Tesla, and the car failed to apply the brakes.

It is the very first known fatal accident involving a vehicle being driven by itself by means of sophisticated computer software, sensors, cameras and radar.

The safety agency did not identify the Tesla driver who was killed. But the Florida Highway Patrol identified him as Joshua Brown, 40, of Canton, Ohio.

He was a Navy veteran who possessed a technology consulting rigid. In a news release, Tesla on Thursday described him as a man “who spent his life focused on innovation and the promise of technology and who believed strongly in Tesla’s mission.”

Mr. Brown posted movies of himself railing in autopilot mode. “The car’s doing it all itself,’’ he said in one, smiling as he took his palms from the steering wheel.

[Movie: Joshua Brown demonstrating the Tesla’s “autopilot” mode. Witness on YouTube.]

In another, he praised the system for saving his car from an accident.

The death is a gargle to Tesla at a time when the company is pushing to expand its product lineup from expensive electrified vehicles to more mainstream models. The company on Thursday declined to say whether the technology or the driver or either were at fault in the accident.

In its news release it said, “Neither autopilot nor the driver noticed the white side of the tractor-trailer against a brightly lit sky, so the brake was not applied.”

The crash also casts doubt on whether autonomous vehicles in general can consistently make split-second, life-or-death driving decisions on the highway.

And other companies are enlargening investments in self-driving technology. Google, for example, recently announced plans to adapt one hundred Chrysler minivans for autonomous driving. Earlier this year, G.M. acquired the software stiff Cruise Automation to accelerate its own self-driving applications.

Even as the companies conduct many tests on autonomous vehicles at both private facilities and on public highways, there is skepticism that the technology has progressed far enough for the government to approve cars that totally drive themselves.

The traffic safety agency said it was working with the Florida Highway Patrol in the inquiry into Mr. Brown’s fatal accident. The agency cautioned that the opening of an investigation did not mean it thought there was a defect in the vehicle being examined.

The federal traffic safety agency is nearing the release of a fresh set of guidelines and regulations regarding the testing of self-driving vehicles on public roads. They are expected to be released in July.

At a latest technology conference in Novi, Mich., the agency’s leader, Mark Rosekind, said self-driving cars should at least be twice as safe as human drivers to result in a significant reduction in roadway deaths. “We need to embark with two times better,’’ Mr. Rosekind said. “We need to set a higher bar if we expect safety to actually be a benefit here.”

Karl Brauer, an analyst with the auto research rock-hard Kelley Blue Book, said the accident served as a signal that the technology might not be as advanced and ready for the market as some proponents have suggested.

“This is a bit of a wake-up call,” Mr. Brauer said. “People who were maybe too aggressive in taking the position that we’re almost there, this technology is going to be in the market very soon, maybe need to reassess that.”

Tesla said in its news release that it had informed the traffic safety agency about the accident “immediately after it occurred.” But the company reported it publicly only on Thursday, after learning that the agency had begun to investigate.

Mr. Brown had spent eleven years in the Navy and then founded a technology consulting company, Nexu Innovations, according to a May obituary of Mr. Brown in The Greensburg Tribune Review in Westmoreland County, Pa., where he had formerly lived.

An excerpt of Joshua Brown’s obituary from The Greensburg Tribune Review in Westmoreland County, Pa., where he had formerly lived.

The Nexu Innovations website, describing Mr. Brown as founder and possessor, said that in the Navy he had been on active duty as a “master explosive ordnance disposition technician,” including a stint with the Naval Special Warfare Development Group, which is commonly known as SEAL Team 6.

Ricky Hammer, a retired Navy master chief who worked with Mr. Brown at the development group, said Mr. Brown had strong computer abilities and “was the equivalent of an electrical engineer even however he didn’t have the degree.”

In Iraq in 2006, he said, Mr. Brown played a crucial role in preparing captured explosive projectiles for shipment to the United States to support efforts to improve the armor on military vehicles.

“He did it by being very aggressive,” Mr. Hammer said, noting that Mr. Brown helped to collect the projectiles after raids on bomb-making shops and would X-ray them to determine their contents.

In the past, Elon Musk, the Tesla chief executive, has praised the company’s self-driving feature, introduced in the Model S last fall, as “probably better than a person right now.”

But in its statement on Thursday, the company cautioned that it was still only a test feature and noted that its use ‘‘requires explicit acknowledgment that the system is fresh technology.’’

It noted that when a driver activated the system, an acknowledgment box popped up, explaining that the autopilot mode “is an assist feature that requires you to keep your mitts on the steering wheel at all times.”

An earlier version of this article misstated the location of Williston, Fla. It is about one hundred miles northwest of Orlando, not one hundred miles northeast of it.

Hiroko Tabuchi, Alain Delaqueriere and Christopher Drew contributed reporting from Fresh York, and John Ismay from Los Angeles.

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