Wheel speed sensing system for electronic stability control
First Claim
1. A control system for controlling a safety system of an automotive vehicle having a transmission and a differential, the system comprising,a left and right wheel speed sensor associated with a respective vehicle wheel and generating left and right wheel speed signals, respectively;
- a transmission output shaft speed sensor generating a transmission output shaft speed signal; and
a controller coupled to the wheel speed sensors and the transmission output speed sensor, said controller determining a reference wheel speed for one of the left or right wheels as a function of the other of the left or right wheel speed signal and the transmission output shaft speed signal, said controller controlling the safety system in response to the determined reference wheel speed.
1 Assignment
0 Petitions
Accused Products
Abstract
A control system for controlling a safety system of an automotive vehicle having a transmission and a differential. The system includes left and right wheel speed sensors associated with respective vehicle wheels and generating left and right wheel speed signals, and a transmission output shaft speed sensor generating a transmission output shaft speed signal. A controller is coupled to the wheel speed sensors and the transmission output speed sensor, and determines a reference wheel speed for one of the left or right wheels as a function of the other of the left or right wheel speed signal and the transmission output shaft speed signal. The controller controls the safety system in response to the determined reference wheel speed.
9 Citations
20 Claims
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1. A control system for controlling a safety system of an automotive vehicle having a transmission and a differential, the system comprising,
a left and right wheel speed sensor associated with a respective vehicle wheel and generating left and right wheel speed signals, respectively; -
a transmission output shaft speed sensor generating a transmission output shaft speed signal; and a controller coupled to the wheel speed sensors and the transmission output speed sensor, said controller determining a reference wheel speed for one of the left or right wheels as a function of the other of the left or right wheel speed signal and the transmission output shaft speed signal, said controller controlling the safety system in response to the determined reference wheel speed. - View Dependent Claims (2, 3, 4, 5)
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6. A method of controlling a safety system for an automotive vehicle having a transmission and an associated differential operatively driving left and right wheels, the wheels each having a wheel speed sensor, the method comprising:
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generating left and right wheel speed signals from each respective wheel speed sensor; determining a transmission output shaft speed; determining a drive gear ratio of the differential; determining a reference wheel speed for one of the left or right wheels as a function of the other of the left or right wheel speed signal, the transmission output shaft speed, and the drive gear ratio; and controlling a safety system with one of the determined reference wheel speed or generated wheel speed. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A vehicle system comprising:
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a transmission having an output shaft; a differential operatively connected to the output shaft, and having an associated drive ratio; left and right wheel operatively connected to the differential for providing motive force to the vehicle; left and right wheel speed sensors, respectively generating left and right wheel speed signals; a transmission output shaft speed sensor generating a transmission output shaft speed signal; and a controller coupled to the wheel speed sensors and the transmission output speed sensor, said controller determining a reference wheel speed for one of the left or right wheels as a function of the other of the left or right wheel speed signal, the transmission output shaft speed signal, and the drive ratio, the controller controlling a safety system in response to the determined reference wheel speed. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification