US 6,588,260 B1
Electronic throttle disable control test systemGeneral
US 6,588,260 B1
Electronic throttle disable control test system
Tech Center:
2800 Semiconductors/Memory, Circuits/Measuring and Testing, Optics/Photocopying, Printing/Measuring and Testing
Examiner:
Eric S. McCall
Art Unit:
2855 Printing/Measuring and Testing
Agent:
Inventors:
Ross Dykstra Pursifull
Assignee:
Priority:
10/24/00
Filed:
10/24/00
Granted:
07/08/03
Expiration:
01/02/21
Abstract
A method for testing the integrity of an electronic throttle disable function begins by disabling the drive electronics responsible for controlling the throttle motor. The microcontroller doing the plate position control commands full closing voltage from throttle motor drive electronics (while those electronics are disabled). Then the throttle position voltage is recorded. If the disable system is working, the H-driver will output zero volts even though a full motor closing voltage is requested. The throttle position voltage is then compared to a predetermined default throttle position voltage. If there is a significant difference between the two voltages, then failure mode management is engaged.