Data obtained from the Impala? Is there something going on that I'm not aware of?
I thought Flight Data Recorders were only used in airplanes.
If there was a GPS unit in the car, it was recording speed.
Many newer model cars collect telemetry. On-Star is considered a security risk by some government agencies.
Lots of cars have data recorders these days.
Where have you been for the last few years, on a desert island?
If you pay attention at all, you would know that modern computers in cars are also capable of recording events and statistics, such as speed, throttle position, etc.
A lot of cars have monitors that store data for a short while. After crashes the data can be recovered...
Almost or all GM produced vehicles since about 2004 include a scaled-down black box that stores the last 30 seconds or so of vehicle information, including speed, whether brakes were applied, etc.
See http://reviews.cnet.com/4520-3513_7-6731442-1.html for one article about it.
My understanding is that the computer chip in the newer vehicles copies the last 30 seconds of everything happening with the drivetrain and engine. It is lost if the battery is disconnected.
“”Data obtained from Radostits’ Impala indicated that in the seconds before the crash, she was driving between 81 and 85 mph”
Data obtained from the Impala? Is there something going on that I’m not aware of?
I thought Flight Data Recorders were only used in airplanes.”
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There is a continually active box in most new cars that provide a pile of data, such as speed, braking, seatbelt buckled, airbag deployment, chronometer time, accel and decel rates, ignition key usage, etc. The data is in a rolling base, so old data is continually dropping off the database.
An officer can download and view all of this data at the scene of the accident.
I was talking to an officer who said the data is perfectly admissible in court, and has stopped many legal challenges when the data is presented to the defendant.
The Associated Press reported that according to a South Dakota highway patrol officer, “Janklow’s 1995 Cadillac has a black box, which records information such as how fast the car was going and whether the brakes were applied.” How many cars have such black boxes, and what information do they record?
Black boxes—event data recorders like the ones found in airliners—are increasingly common in automobiles and vary from one type of car to another. But cars with airbags have long had onboard computers with the sensors and software necessary to determine within 1/100 of a second that you’re in a crash; that’s how cars know when to deploy the bags. These computers, called sensing and diagnostic modules, are located inside the transmission hump, behind the dashboard, or under the seat, and constantly collect and process data on the car’s acceleration or deceleration. Airbag-equipped cars made by General Motors (which owns Cadillac) have had SDMs since 1974.
Beginning in the 1999 model year, though, GM upgraded SDMs to include an event data recorder. The newer SDMs track the car’s speed (from the speedometer), engine RPM, the exact position of the gas pedal, and whether or not the brake pedal was pressed, among other statistics. The SDM keeps the previous five seconds’ worth of this data in its onboard memory and, if the airbags are deployed, saves the most recent five seconds as a snapshot of events leading up to a possible collision. Ford and Isuzu added similar features to some models in this decade. Santa Barbara-based Vetronix sells a $2,500 “crash data recovery” gadget that will download the logs from these computers (the company lists what years and models it works with, and what data is recoverable).
Many of these freeper are like pitbulls no respecter of even their own, they appear to be all out for blood they seem to have no mercy!
Must be a lot of angst going on in their lives...
most if not all new cars and trucks onboard computers will save some data after a crash and things like engine rpm and what gear the transmission was in can help calculate speed etc.
It has been this way on trucks and busses for quite awhile now and I have used it in post accident inspections on big rigs. It has only gotten into the smaller cars recently.
Retrieved info from the data recorder figured in the news of Corzine’s crash. That’s where/ how we learned the speed of the guv’s Suburban seconds before the crash.
“Data obtained from Radostits’ Impala indicated that in the seconds before the crash, she was driving between 81 and 85 mph”
Data obtained from the Impala? Is there something going on that I’m not aware of?
I thought Flight Data Recorders were only used in airplanes.
Nope, most late model mid to high end vehicles have a virtual ‘black box’. The Onstar system in my H2 records around thirty to forty five seconds of data, showing speed, braking or lack there of, etc etc etc.
Most people don’t realize it.