SYSTEM AND METHOD FOR ON-VEHICLE DYNAMIC ACCIDENT RECREATION USING ACCIDENT DATA RECORDING

• US 20150279127A1
• Filed: 03/25/2014
• Published: 10/01/2015
• Est. Priority Date: 03/25/2014
• Status: Active Grant

• Current Assignee: Toyota Motor Engineering & Manufacturing North America Incorporated (Toyota Motor Corporation)
• Original Assignee: Toyota Motor Engineering & Manufacturing North America Incorporated (Toyota Motor Corporation)
• Inventors: Dato, Gregory G.
• Granted Patent: US 9,412,211 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G07C 5/085 using electronic data carriers

Abstract

A system and a method for recreating an operation of a crashed vehicle during and/or before the accident An accident data recorder collects vehicle operation data related to the operation of the crashed vehicle prior to and/or during the accident. A processor may analyze the prior vehicle operation data that may include prior acceleration input data, prior braking input data, and/or prior steering input data and may output vehicle control data to at least one electronic controller based on the prior vehicle operation data. The at least one electronic controller automatically operates the test vehicle on a test surface to recreate an operation of the crashed vehicle during and/or before the accident. At least one electronic controller unit automatically and accurately recreates a response of the crashed vehicle to the prior acceleration input, the prior steering input, and the prior braking input can be automatically and accurately recreated.

Claims

1. A method for recreating a prior operation of a crashed vehicle before or at the time of an accident, comprising:

retrieving, from a memory of an accident data recorder, a prior vehicle operation data corresponding to the prior operation of the crashed vehicle before or at the time of the accident, the prior vehicle operation data including at least one of a prior steering input data or a prior braking input data;

analyzing, using a processor connected to the accident data recorder, the prior vehicle operation data;

providing at least one electronic controller configured to control a test operation of a test vehicle that is similar in make and model to the crashed vehicle;

outputting, using the processor, a vehicle control data or signal to the at least one electronic controller based on the analyzed prior vehicle operation data; and

automatically operating, using the at least one electronic controller, the test vehicle based on the vehicle control data or signal in order to recreate the prior operation of the crashed vehicle in response to the at least one of the prior steering input data or the prior braking input data.

2. The method of claim 1, wherein

the prior steering input data is detected by a steering input sensor of the crashed vehicle before or at the time of the accident,

the vehicle control data or signal includes a steering control data or signal being based on the prior steering input data, and

the step of operating, using the at least one electronic controller, the test vehicle based on the vehicle control data or signal automatically recreates a response of the crashed vehicle to the prior steering input data.

3. The method of claim 1, wherein

the prior braking input data is detected by a braking input sensor of the crashed vehicle before or at the time of the accident,

the vehicle control data or signal includes a braking control data or signal being based on the prior braking input data, and

the step of automatically operating, using the at least one electronic controller, the test vehicle using the vehicle control data or signal automatically recreates a response of the crashed vehicle to the prior braking input data.

4. The method of claim 1, wherein

the prior vehicle operation data includes a prior acceleration input data detected by an acceleration input sensor of the crashed vehicle before or at the time of the accident,

the vehicle control data or signal includes an acceleration control data or signal being based on the prior acceleration input data, and

the step of automatically operating, using the at least one electronic controller, the test vehicle using the vehicle control data or signal automatically recreates a response of the crashed vehicle to the prior acceleration input data.

5. The method of claim 2, further comprising configuring the test vehicle with a steering electromechanical controller,

wherein the step of automatically operating, using the at least one electronic controller, the test vehicle using the vehicle control data or signal includes controlling, using the steering electromechanical controller, a steering input device of the test vehicle for recreating a response of the crashed vehicle to the prior steering input data.

6. The method of claim 3, further comprising configuring the test vehicle with a braking electromechanical controller,

wherein the step of automatically operating, using the at least one electronic controller, the test vehicle using the vehicle control data or signal includes controlling, using the braking electromechanical controller, a braking input device of the test vehicle for recreating a response of the crashed vehicle to the prior braking input data.

7. The method of claim 4, further comprising configuring the test vehicle with an acceleration electromechanical controller,

wherein the step of automatically operating, using the at least one electronic controller, the test vehicle using the vehicle control data or signal includes controlling, using the acceleration electromechanical controller, an acceleration input device of the test vehicle for recreating a response of the crashed vehicle to the prior acceleration input data.

8. The method of claim 1, wherein the step of automatically operating the test vehicle using the vehicle control data or signal includes automatically driving the test vehicle using the at least one electronic controller on a road surface or a test driving surface.

9. The method of claim 1, further comprising configuring the test vehicle to be in a similar condition as the crashed vehicle before performing the step of automatically operating, using the at least one electronic controller, the test vehicle based on the vehicle control data or signal.

10. The method of claim 1, wherein the prior vehicle operation data includes data corresponding to at least a setting or an operation of a device or a unit of the crashed vehicle that exerts a load on an engine of the crashed vehicle, the method further comprising:

controlling, using the at least one electronic controller, a device or a unit of the test vehicle that corresponds to the device or the unit of the crashed vehicle such that a load exerted by the device or the unit of the crashed vehicle on an engine of the test vehicle automatically recreates the load exerted by the device or the unit of the test vehicle on the engine of the crashed vehicle.

11. The method of claim 1, wherein the at least one electronic controller includes an electronic control unit (ECU) integrated in the test vehicle, the method further comprising:

establishing at least one of;

an electronic connection between the processor and the ECU, or

an electronic connection between the processor and a steering sensor output of the test vehicle,

outputting, using the processor, a steering control data or signal based on the prior steering input data,

wherein the step of automatically operating, using the at least one electronic controller, the test vehicle using the vehicle control data or signal is performed automatically using the ECU and based on the outputted steering control data or signal.

12. The method of claim 1, wherein the at least one electronic controller includes an electronic control unit (ECU) integrated in the test vehicle, the method further comprising:

establishing at least one of;

an electronic connection between the processor and the ECU, or

an electronic connection between the processor and a braking sensor output of the test vehicle,

outputting, using the processor, a braking control data or signal based on the prior braking input data,

wherein the step of automatically operating, using the at least one electronic controller, the test vehicle using the vehicle control data or signal is performed automatically using the ECU and based on the outputted braking control data or signal.

13. The method of claim 1, further comprising:

detecting, using a plurality of sensors of the test vehicle, data regarding an operation of a unit or a device of the test vehicle; and

analyzing a test operation of the test vehicle based on the detected data regarding the operation of the unit or the device of the test vehicle.

14. A method for recreating a prior operation of a crashed vehicle before or at the time of an accident, comprising:

retrieving, from a memory of an accident data recorder, a prior vehicle operation data corresponding to the prior operation of the crashed vehicle before or at the time of the accident, the prior vehicle operation data including;

a prior acceleration input data detected by an acceleration input sensor during before or at the time of the accident,

a prior steering input data detected by a steering input sensor before or at the time of the accident, and

a prior braking input data detected by a braking input sensor before or at the time of the accident;

analyzing, using a processor connected to the accident data recorder, the prior steering input data, the prior braking input data, and the prior acceleration input data;

providing at least one electronic controller configured to control a test operation of a test vehicle that is similar in make and model to the crashed vehicle;

outputting, using the processor, a vehicle control data or signal to the at least one electronic controller based on the analyzed prior vehicle operation data, the vehicle control data or signal including;

an acceleration control data or signal being based on the prior acceleration input data, and

a steering control data or signal being based on the prior steering input data, and a braking control data or signal being based on the prior braking input data; and

automatically operating, using the at least one electronic controller, the test vehicle based on the vehicle control data or signal in order to recreate the prior operation of the crashed vehicle or a response of the crashed vehicle to the prior acceleration input data, the prior steering input data, and the prior braking input data.

15. The method of claim 14, further comprising:

configuring the test vehicle with an acceleration electromechanical controller, a steering electromechanical controller, and a braking electromechanical controller,

wherein the step of automatically operating, using the at least one electronic controller, the test vehicle based on the vehicle control data or signal includes;

controlling, using the acceleration electromechanical controller, an acceleration input device of the test vehicle for recreating a response of the crashed vehicle to the prior acceleration input data,

controlling, using the steering electromechanical controller, a steering input device of the test vehicle for recreating a response of the crashed vehicle to the prior steering input data, and

controlling, using the braking electromechanical controller, a braking input device of the test vehicle for recreating a response of the crashed vehicle to the prior braking input data.

16. The method of claim 14, wherein the at least one electronic controller includes an electronic control unit (ECU) integrated in the test vehicle, the method further comprising:

establishing an electronic connection between the processor and an acceleration sensor output of the test vehicle;

establishing an electronic connection between the processor and a steering sensor output of the test vehicle;

establishing an electronic connection between the processor and a braking sensor output of the test vehicle;

outputting, using the processor, an acceleration control data or signal based on the prior acceleration input data;

outputting, using the processor, a steering control data or signal based on the prior steering input data; and

outputting, using the processor, a braking control data or signal based on the prior braking input data,

wherein the step of automatically operating, using the at least one electronic controller, the test vehicle based on the vehicle control data or signal is performed automatically using the ECU and based on the acceleration control data or signal, the steering control data or signal, and the braking control data or signal.

17. A system for recreating a prior operation of a crashed vehicle before or at the time of an accident, comprising:

an accident data recorder having a memory for storing a prior vehicle operation data corresponding to the prior operation before or at the time of the accident, the prior vehicle operation data including at least one of a prior steering input data or a prior braking input data;

a processor connected to the accident data recorder and configured to;

retrieve the prior vehicle operation data,

analyze the prior vehicle operation data, and

output a vehicle control data or signal based on the analyzed prior vehicle operation data; and

at least one electronic controller configured to;

receive the vehicle control data or signal, and

operate the test vehicle based on the vehicle control data or signal in order to recreate the prior operation of the crashed vehicle in response to the at least one of the prior steering input data or the prior braking input data.

18. The system of claim 17, wherein

the prior steering input data is detected by a steering input sensor of the crashed vehicle before or at the time of the accident, and the prior braking input data is detected by a braking input sensor of the crashed vehicle before or at the time of the accident,

the vehicle control data or signal includes a steering control data or signal being based on the prior steering input data and include a braking control data or signal being based on the prior braking input data, and

the at least one electronic controller is further configured to recreate a response of the crashed vehicle to the prior steering input data and the prior braking input data.

19. The system of claim 18, wherein

the prior vehicle operation data includes a prior acceleration input data detected by an acceleration input sensor of the crashed vehicle before or at the time of the accident,

the vehicle control data or signal includes an acceleration control data or signal being based on the prior acceleration input data, and

the at least one electronic controller is further configured to recreate a response of the crashed vehicle to the prior acceleration input data.

20. The system of claim 17, wherein

the at least one electronic controller includes an electronic control unit (ECU) integrated in the test vehicle,

the processor is connected to a steering sensor output of the test vehicle and a braking sensor output of the test vehicle,

the processor is further configured to output a steering control data or signal based on the prior steering input data, and output a braking control data or signal based on the prior braking input data, and

the ECU is further configured to automatically operate the test vehicle based on the steering control data or signal and the braking control data or signal for recreating a response of the crashed vehicle to the prior steering input data and the prior braking input data, respectively.