Pneumatic panic brake assist
AssigneeBendix Commercial Vehicle Systems LLC
InventorsTimothy Carritte, Mark A. Bennett
Life of this patent
Estimating the term…
Abstract
When a brake system on a commercial vehicle, lateral acceleration and/or yaw of the vehicle are monitored and compared to a first predetermined threshold. If the first predetermined threshold is exceeded, a precharge command is sent to the brake system to precharge one or more air chambers by temporarily deactivating a modulator valve and activating an antilock traction relay valve in order to charge the air chambers up to a level permitted by the modulator valve. Upon detecting a panic braking event, a command signal is sent to the brake system to release the precharged air to facilitate braking.
Claims26
A system that facilitates pre-charging an air brake system on a commercial vehicle, comprising:
- sensor that detects a stability input value of the vehicle;
- and
- a processor configured to:
- compare the stability input value of the vehicle to a first predetermined threshold;
- when the stability input value of the vehicle exceeds the first predetermined threshold, send a precharge command to the brake system to charge one or more circuits of the brake system, wherein the precharge command comprises instructions to place one or more antilock brake modulators into a hold state, and an antilock traction relay valve into an energized state in order to precharge the brake system.
A processor that facilitates pre-charging an air brake system on a commercial vehicle, the processor being configured to:
- compare a stability input value of the vehicle to a first predetermined threshold;
- when the stability input value of the vehicle exceeds the first predetermined threshold, send a precharge command to the brake system to charge one or more circuits of the brake system, wherein the precharge command comprises instructions to place one or more antilock brake modulators into a hold state, and an antilock traction relay valve into an energized state in order to precharge the brake system.
A method of precharging an air brake system on a commercial vehicle, the method comprising:
- comparing a stability input value of the vehicle to a first predetermined threshold;
- and
- when the stability input value of the vehicle exceeds the first predetermined threshold, sending a precharge command to the brake system to charge one or more air modulators of the brake system, wherein the precharge command comprises instructions to place one or more antilock brake modulators into a hold state, and an antilock traction relay valve into an energized state in order to precharge the brake system.
An apparatus that facilitates pre-charging an air brake system on a commercial vehicle, comprising:
- means for detecting a stability input value of the vehicle;
- means for comparing the stability input value of the vehicle to a first predetermined threshold;
- and
- means for sending a precharge command to the brake system to charge the brake system when the stability input value of the vehicle exceeds the first predetermined threshold, wherein the precharge command comprises instructions to place one or more antilock brake modulators into a hold state, and an antilock traction relay valve into an energized state in order to precharge the brake system.
Dependencies are inferred from the claim text.