Validation of brake torque signal for use as a brake event
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United States of America Patent
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May 28, 2019
Grant Date -
Nov 30, 2017
app pub date -
May 26, 2016
filing date -
May 26, 2016
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a method, a brake torque signal provided by an electronic control unit of an anti-lock braking system is validated. The brake torque signal is enabled for use as a brake event input signal upon being successfully validated for diagnostic and control routines of the vehicle that use the brake torque signal as a brake event input signal. If the brake torque signal fails validation, it is disabled for such use. The brake torque signal is validated by first rationalizing a brake pedal position signal and a master cylinder pressure signal. Once the brake pedal position signal is successfully rationalized with the master cylinder pressure signal, the brake pedal position signal is rationalized with the brake torque signal. The brake torque signal is successfully validated when both rationalizations are successful. The validation fails if either rationalization fails.
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