Test method and system using a highly agile ground vehicle for intelligent vehicle testing

• US 9,880,556 B2
• Filed: 10/14/2015
• Issued: 01/30/2018
• Est. Priority Date: 10/15/2014
• Status: Expired due to Fees

• Current Assignee: MTS Systems Corporation (Illinois Tool Works Inc.)
• Original Assignee: MTS Systems Corporation (Illinois Tool Works Inc.)
• Inventors: Litz, Bradley C., Shankwitz, Craig R.
• Primary Examiner(s): Khatib, Rami
• Application Number:
  US14/883,279
• Publication Number:
  US 20160154407A1
• Time in Patent Office: 839 Days
• Field of Search: None
• CPC Class Codes: G01M 17/0074 Details, e.g. roller construction, vehicle restraining devices
• CPC Class Codes: G01M 17/0078 Shock-testing of vehicles
• CPC Class Codes: G05D 1/021 specially adapted to land vehicles
• CPC Class Codes: G05D 1/0276 using signals provided by a source external to the vehicle involving a plurality of vehicles G05D1/0287; automatically controlling vehicle speed responsive to externally generated signals B60K31/0058
• CPC Class Codes: G05D 1/0289 with means for avoiding collisions between vehicles vehicle fittings for automatically controlling speed including means for detecting potential obstacles B60K31/0008; avoiding obstacles by action on the steering system B62D; radar, sonar, lidar systems designed for anti-collision purposes G01S13/93, G01S15/93, G01S17/93
• CPC Class Codes: G08G 1/166 for active traffic, e.g. moving vehicles, pedestrians, bikes

Abstract

A system and method for testing a test vehicle or a system on the test vehicle for warning the presence of an object proximate the test vehicle or a system to avoid a collision includes a self-powered, independently movable target configured to be positioned proximate the test vehicle, the target comprising a support frame having wheels, a motor operably coupled to one or more wheels, brakes operably coupled to each wheel and a control system coupled to the motor, brakes and wheels and configured to control acceleration, braking and steering of the wheels, and a collision avoidance system operable with the control system and configured to control the target to avoid a collision with the test vehicle.

Claims

1. An arrangement for testing a test vehicle or a system on the test vehicle for warning the presence of an object proximate the test vehicle or a system to avoid a collision, comprising:

a self-powered and independently movable target separate from the test vehicle, configured to be positioned proximate to the test vehicle, the target comprising;

a support frame with wheels,

a motor operably coupled to at least one wheel,

brakes operably coupled to each wheel,

a control system coupled to the motor, brakes and wheels and configured to control acceleration, braking and steering of the wheels, and

a collision avoidance system operable with the control system and configured to control the target to avoid a collision with the test vehicle; and

a ground effect system configured to create a vacuum under the target.

2. The arrangement of claim 1 wherein the ground effect system includes a fan configured to create a vacuum under the target.

3. The arrangement of claim 1 further comprising a first wireless communication device apart from any system under test and configured to be mounted on the test vehicle, and

wherein the target includes a second wireless communication device in communication with the first wireless communication device and operably coupled to the collision avoidance system,

the collision avoidance system configured to control the target based on information received from the second wireless device.

4. The arrangement of claim 1 wherein the control system is configured to selectively provide more torque to one wheel over another wheel.

5. The arrangement of claim 1 further comprising a plurality of self-powered, independently movable targets configured to be positioned proximate the test vehicle,

each target of the plurality of targets comprising:

a support frame having wheels,

a motor operably coupled to the wheels,

brakes operably coupled to each wheel,

a control system coupled to the motor, brakes and wheels and configured to control acceleration, braking and steering of the wheels, and

a collision avoidance system operable with the control system and configured to control the target to avoid a collision with the test vehicle.

6. The arrangement of claim 1 wherein the target has at least one of longitudinal acceleration or lateral acceleration better than the test vehicle.

7. The arrangement of claim 6 wherein longitudinal acceleration is at least 25% better than the test vehicle.

8. The arrangement of claim 6 wherein longitudinal acceleration is at least 50% better than the test vehicle.

9. The arrangement of claim 6 wherein longitudinal acceleration is at least 75% better than the test vehicle.

10. The arrangement of claim 6 wherein lateral acceleration is at least 50% better than the test vehicle.

11. The arrangement of claim 6 wherein lateral acceleration is at least 100% better than the test vehicle.

12. The arrangement of claim 6 wherein lateral acceleration is at least 150% better than the test vehicle.

13. The arrangement of claim 1, wherein the ground effect system further includes a cavity formed in a panel under the target and fluidly coupled to a fan.

14. A method for testing a test vehicle or a system on the test vehicle for warning the presence of an object proximate the test vehicle or a system to avoid a collision, comprising:

maneuvering a test vehicle in a test situation proximate to a self-powered and independently movable target separate from the test vehicle, wherein maneuvering comprises maneuvering the test vehicle such that it approaches the target from behind, the target comprising a support frame with wheels, a motor operably coupled to one or more wheels, and a control system coupled to the motor and configured to autonomously control acceleration to avoid the test vehicle from striking the target, and the target including one or more performance characteristics better than that of the test vehicle;

monitoring for a likelihood of a collision between the test vehicle and the target using a collision avoidance system of the target; and

maneuvering the target autonomously in accordance with the monitoring by accelerating the target to avoid a collision with the test vehicle.

15. The method of claim 14 comprising maneuvering a plurality of targets, each target being maneuvered during the test, each target having one or more performance characteristics better than that of the test vehicle.

16. The method of claim 14 wherein said one or more performance characteristics better than that of the test vehicle comprises at least one of longitudinal acceleration or lateral acceleration better than the test vehicle.

17. The method of claim 16 wherein the longitudinal acceleration of the target is at least 25% better than the test vehicle.

18. The method of claim 16 wherein the longitudinal acceleration of the target is at least 50% better than the test vehicle.

19. The method of claim 16 wherein the longitudinal acceleration of the target is at least 75% better than the test vehicle.

20. The method of claim 16 wherein the lateral acceleration of the target is at least 50% better than the test vehicle.

21. The method of claim 16 wherein the lateral acceleration of the target is at least 100% better than the test vehicle.

22. The method of claim 16 wherein the lateral acceleration of the target is at least 150% better than the test vehicle.

23. The method of claim 14 wherein the target comprises a ground effect system configured to create a vacuum under the target and maneuvering comprises creating a vacuum under the target.

24. The method of claim 14, wherein the target is a facsimile of a vehicle without a configuration to carry a person.

25. A wheeled apparatus comprising:

a support frame with wheels;

a motor operably coupled to one or more wheels;

brakes operably coupled to each wheel;

a control system coupled to the motor, brakes and the wheels and configured to autonomously control acceleration, braking and steering of the wheels;

a collision avoidance system operable with the control system and configured to avoid a collision with a test vehicle; and

a ground effect system configured to create a vacuum between a downwardly facing panel on a carriage of the wheeled apparatus and a surface upon which the apparatus travels upon,

wherein the ground effect system includes a fan and a cavity in the downwardly facing panel fluidly coupled to the fan.

26. The wheeled apparatus of claim 25 wherein the motor comprises an electric motor.

27. The wheeled apparatus of claim 25 wherein the motor comprises an internal combustion engine.