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US 7,744,168 B2Granted
Brake control system
AssigneeBendix Commercial Vehicle Systems LLC
InventorsCharles E. Eberling, Ron R. Stahl, Kenneth A. Grolle, William P. Amato
Life of this patent
Estimating the term…
Abstract
A brake disabling device for a vehicle includes an electronic control unit (ECU) for receiving a signal indicative of a direction of the vehicle. A control device communicates with the ECU for disabling brakes associated with a steer axle of the vehicle as a function of the direction of the vehicle.
Claims14
A brake disabling device for a vehicle, comprising:
- an electronic control unit (ECU) for receiving a signal indicative of a direction of the vehicle;
- and
- a control device communicating with the ECU for disabling brakes associated with a steer axle of the vehicle as a function of the direction of the vehicle;
- wherein the control device includes:
- an electro-pneumatic switch capable of passing a pressure signal to respective brake chambers of the brakes of the steer axle as a function of the direction of the vehicle;
- and
- a pressure switch receiving a signal indicating a brake demand, the pressure switch communicating a first signal to the ECU when the user's brake demand is less than a predetermined level, the pressure switch communicating a second signal to the ECU when the user's brake demand is greater than a predetermined level, the ECU communicating a control signal to the electro-pneuatic switch for setting the electro-pneumatic switch to pass pressurized air to the brake chambers when the second signal is communicated to the ECU.
4 more elements
A brake disabling device for a vehicle comprising:
- an electronic control unit (ECU) for receiving a signal indicative of a direction of the vehicle;
- and
- a control device communicating with the ECU for disabling brakes associated with a steer axle of the vehicle as a function of the direction of the vehicle;
- wherein the control device includes:
- an electro-pneumatic switch capable of passing a pressure signal to respective brake chambers of the brakes of the steer axle as a function of the direction of the vehicle;
- and
- a pressure switch receiving i) a control signal from the ECU as a function of the direction of the vehicle and ii) a signal indicating a brake demand, the pressure switch communicating the control signal from the ECU to the electro-pneumatic switch for causing the electro-pneumatic switch to equalize a pressure in the brake chamber with atmosphere when the brake demand is less than a predetermined level and for causing the electro-pneumatic switch to pass the pressure signal to the brake chambers when the brake demand is above the predetermined level.
4 more elements
A brake control system for a heavy vehicle comprising:
- an electronic control unit (ECU) determining a direction of the vehicle;
- and
- means for disabling brakes associated with a steer axle of the vehicle as a function of the direction of the vehicle, wherein the means for disabling includes:
- an electro-pneumatic switch communicating with the ECU, the electro-pneumatic switch being set to one of i) supplying pressurized air to brake chambers of respective brakes associated with a steer axle and ii) equalizing the brake chambers with atmosphere to disable the brakes.
1 more element
Dependencies are inferred from the claim text.