Method for bleeding an electronic vehicle braking system
AssigneeContinental Teces AG & Co., oHG
InventorsMartin Bächle, Axel Wagner, Michael Hitzel, Thorsten Ullrich, Jens Lerchenberger
Life of this patent
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Abstract
An electronically controllable brake system includes an electronic controller installed within the motor vehicle for actuating electrohydraulic components of the brake system and for operating the electrohydraulic components during the process of filled with hydraulic fluid and for removing air from hydraulic components of the brake system. A filling sequence is performed according to a predetermined filling profile that utilizes on-board sensors that detect brake system pressure and identify a defined pressure in conformity with a desired filling profile.
Claims18
An operator-initiated method of bleeding an electronically controllable brake system with an electronic controller mounted within a motor vehicle for actuating electrohydraulic components of the brake system during normal vehicle operation, wherein hydraulic components such as hydraulic unit, valves, return pump, master brake cylinder, conduits of pipes or hoses are mounted during the assembly of a motor vehicle for providing a brake system, and wherein bleeding sequences are performed according to a predetermined bleeding routine, the method comprising the following steps:
- entering a routine including a predetermined code to gain access to the brake system prior to executing a bleeding routine;
- detecting a bleeding routine including a superimposed pressure time course stored in the electronic controller with an on-board pressure sensor for detecting a brake system pressure;
- disabling normal operation of the brake system;
- actuating the electrohydraulic components of the brake system by means of the electronic controller in conformity with the identified bleeding routine, wherein actuating of the electrohydraulic components is initiated by actuation of an operator actuated control that is part of the motor vehicle;
- confirming successful execution of an activity performed by an operator in response to actuation of an input to the operator operated control by the operator;
- and
- communicating completion of the bleeding routine by actuation of a signaling device of the motor vehicle, wherein actuation of the signaling device comprises a change of state of the signaling device between on and off conditions.
A method of bleeding an electronically controllable brake system with an electronic controller mounted within a motor vehicle for actuating electrohydraulic components of the brake system during vehicle operation, wherein hydraulic components such as a hydraulic unit, valves, return pump, master brake cylinder, conduits of pipes or hoses are mounted during the assembly of the motor vehicle for providing a brake system, and wherein bleeding sequences are performed according to a predetermined bleeding routine, the method comprising the step of;
- storing data related to bleeding in a memory of the electronic controller mounted within the vehicle;
- confirming that a predetermined code has been communicated to the electronic controller, wherein the predetermined code is stored in a memory of the electronic controller and is compared to an input code;
- executing the predetermined bleeding routine responsive to confirming that the input code has been successfully executed and is confirmed to correspond with the predetermined code stored in the memory of the electronic controller, wherein execution of the bleeding routine includes sensing a superimposed pressure time course stored in the electronic controller with an on-board pressure sensor for detecting a brake system pressure;
- and
- indicating completion of the bleeding routine by actuation of a signaling device of the motor vehicle, wherein actuation of the signaling device comprises a change of state of the signaling device between on and off conditions.
Dependencies are inferred from the claim text.