SYSTEM AND METHOD FOR DETECTING VEHICLE MOVEMENT BASED ON DRIVELINE TORQUE SENSOR
First Claim
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1. A system for detecting movement of a vehicle, comprising:
- a torque sensor that detects a torque value on a vehicle drivetrain; and
a controller that determines possible vehicle movement based on the torque value.
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Abstract
A system and method for detecting vehicle movement based on the measurement of the torque value on a vehicle drivetrain is disclosed. The system includes a torque sensor for measuring the torque on a vehicle drivetrain. This measured torque is utilized by a control module, with various other measured vehicle parameters, to determine if the conditions are such that vehicle movement may occur or has already begun. Possible vehicle movement is indicated when either the measured torque value exceeds a threshold value and changes towards zero, or big noise spikes are present in the torque sensor output signal.
29 Citations
22 Claims
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1. A system for detecting movement of a vehicle, comprising:
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a torque sensor that detects a torque value on a vehicle drivetrain; and a controller that determines possible vehicle movement based on the torque value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of determining vehicle movement, comprising:
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detecting a torque value on a vehicle drivetrain; and determining possible vehicle movement based on the torque value. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for detecting movement of a vehicle, comprising:
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a torque sensor that detects a torque value on an output of a vehicle drivetrain, wherein the torque value comprises a torque magnitude and a torque direction; and a controller that determines possible vehicle movement based on the torque value by determining a vehicle state, by determining an expected torque value threshold based on the vehicle state, and by comparing the torque value to the expected torque value threshold, wherein if the torque value is greater than the expected torque value threshold and the torque magnitude decreases, possible vehicle movement is determined.
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Specification