IP Library Granted Patent US 8,762,023
Granted Patent B2
US 8,762,023 · App. 13/873,047 · Granted Jun 24, 2014

System and method for validating adaptive cruise control operations

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Quick Facts
Patent No.
US 8,762,023
App. No.
13/873,047
Granted
Jun 24, 2014
Kind
B2
Abstract

A method of operating a vehicle comprising an adaptive cruise control system and an engine control module is provided. The engine control module is coupled to the adaptive cruise control system. The method comprises issuing a speed reduction signal from the adaptive cruise control system, verifying a speed reduction with a first sensor using the adaptive cruise control system, verifying the speed reduction with a second sensor using the engine control module, thereafter, receiving a resume signal from an operator input device, and executing a speed increase of the vehicle with the engine control module in response to receiving the resume signal with the engine control module.

Claims (15)

1. A method of operating a vehicle comprising an adaptive cruise control system and an engine control module coupled to the adaptive cruise control system, the method comprising:

issuing a speed reduction signal from the adaptive cruise control system;

verifying a speed reduction with a first sensor using the adaptive cruise control system;

verifying the speed reduction with a second sensor using the engine control module;

thereafter, receiving a resume signal from an operator input device; and

executing a speed increase of the vehicle with the engine control module in response to receiving the resume signal with the engine control module.

2. The method of claim 1 , wherein executing a speed reduction of the vehicle comprises stopping the vehicle.

3. The method of claim 1 , wherein verifying the speed reduction with the first sensor comprises receiving a wheel speed signal from a wheel sensor with the adaptive cruise control system.

4. The method of claim 1 , wherein verifying the speed reduction with the second sensor comprises receiving a transmission shaft speed signal from a transmission output shaft sensor with the engine control module.

5. The method of claim 1 , wherein receiving the resume signal from the operator input device comprises receiving the resume signal from an accelerator pedal sensor.

6. The method of claim 1 , wherein receiving the resume signal from the operator input device comprises receiving the resume signal from a cruise control command button.

7. The method of claim 1 , further comprising:

transmitting a speed increase signal from the adaptive cruise control system to the engine control module in response to receiving the resume signal with the adaptive cruise control system; and

wherein executing the speed increase comprises moving the vehicle from a stopped position with the engine control module in response to receiving the resume signal and the speed increase signal with the engine control module.

8. The method of claim 7 , wherein receiving the resume signal comprises receiving the resume signal with the adaptive cruise control system and the engine control module.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Nov 7, 2014
From: WILMINGTON TRUST COMPANY
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 034287/0601 →
SECURITY INTEREST Recorded Jun 12, 2014
From: GM GLOBAL TECHNOLOGY OPERATIONS LLC
To: WILMINGTON TRUST COMPANY
Reel/Frame 033135/0336 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 29, 2013
From: LABUHN, PAMELA L.; O'LEARY, PATRICK J.; SHULER, BARBARA A.; HOLBROOK, JAMES HEATH
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 030310/0996 →