Warning system distinguishing wheel skidding and wheel slipping

Details Warning system distinguishing wheel skidding and wheel slipping Warning system distinguishing wheel skidding and wheel slipping

G - Physics

01

M

G01M 17/06 (2006.01) B60Q 9/00 (2006.01) B60R 16/02 (2006.01)

Patent

CA 2128721

A warning system alerts a driver of a motor vehicle to different types of traction losses. A first sensing circuit (10) detects a loss of wheel adhesion by monitoring a vehicle drive line for a pronounced vibration within a range of between ten and fifteen Hertz. A second sensing circuit (12) monitors a brake light circuit to detect application of a vehicle brake. A logic circuit (28) combines outputs (A and B) from the first and second sensing circuits and outputs command signals (C and D) that distinguish between a loss of wheel adhesion due to wheel skidding and a loss of wheel adhesion due to wheel slipping. A warning device includes two indicators (36 and 38) that receive the respective command signals and produce sensorially distinguishable warning signals for eliciting different responses from the driver.

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