System And Method For Testing A Vehicle

• US 20100170330A1
• Filed: 05/30/2008
• Published: 07/08/2010
• Est. Priority Date: 05/31/2007
• Status: Active Grant

• Current Assignee: Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno
• Original Assignee: Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno
• Inventors: Schutyser, Pieter Jan, Ploeg, Jeroen, Scheepers, Bart Theodoor Maria, Versmissen, Antonius Cornelis Maria, Corbeij, Rene Mathieu
• Granted Patent: US 8,225,651 B2
• Time in Patent Office: Days
• US Class Current: 73/116.10
• CPC Class Codes: G01M 17/0072 the wheels of the vehicle co-operating with rotatable rolls G01M17/022, G01M17/045, G01M17/065 take precedence
• CPC Class Codes: G01M 17/0078 Shock-testing of vehicles

Abstract

A test system (1) is arranged for testing vehicle systems which comprise at least one sensor (20). The test system comprises a test stand (11) for accommodating a vehicle (2), an object (12) which is movable relative to the test stand, and a control unit (13) for controlling the movement of the object. The test stand (11) is provided with a speed measurement unit (14) for detecting the virtual speed (v) of the vehicle, while the control unit (13) is arranged for controlling the movement of the object in dependence on said virtual speed. The object (12) preferably is a dummy vehicle which may be pulled along a track (16).

Claims

1. A test system for testing vehicle systems comprising at least one sensor, the test system comprising:

a test stand for accommodating a vehicle,

a sensor support for accommodating the at least one sensor,

an object which is movable relative to the at least one sensor,

a control unit for controlling a relative movement of the object, and

a speed measurement unit for detecting a virtual speed of the vehicle,

wherein the control unit is arranged for controlling the relative movement of the object in dependence on the virtual speed of the vehicle.

2. The system according to claim 1, wherein the control unit is arranged for controlling the relative movement of the object also in dependence on a test scenario.

3. The system according to claim 1, wherein the object is movable on a track.

4. The system according to claim 1, wherein the object is pivotally arranged.

5. The system according to claim 1, further comprising at least one deceleration member.

6. The system according to claim 1, wherein the test stand comprises a roller bench and/or endless belts.

7. The system according to claim 1, wherein the object is designed to withstand decelerations exceeding 20 g.

8. The system according to claim 1, wherein the at least one sensor is detached from the vehicle.

9. The system according to claim 8, wherein the sensor support is pivotally arranged, and wherein any pivotal movement of the sensor is preferably controlled by the control unit.

10. The system according to claim 1, wherein the at least one sensor is located in the vehicle.

11. A control unit for use in the test system according to claim 1.

12. A method of testing vehicle systems comprising at least one sensor, the method comprising the steps of:

accommodating a vehicle on a test stand,

controlling the movement of an object relative to the at least one sensor, and

detecting a virtual speed of the vehicle,

wherein the controlling step comprises controlling a relative movement of the object in dependence on said virtual speed.

13. The method according to claim 12, wherein the controlling step comprises controlling the relative movement of the object also in dependence on a test scenario.

14. The method according to claim 12, wherein the object is movable on a track.

15. A computer program product for carrying out the controlling steps of a method of testing vehicle systems comprising at least one sensor, the method comprising:

accommodating a vehicle on a test stand,

controlling a movement of an object relative to the at least one sensor, and

detecting a virtual speed of the vehicle,

wherein the controlling step comprises controlling a relative movement of the object in dependence on said virtual speed.