Systems and methods for controlling vehicle brake system compressors
AssigneeTransportation IP Holdings, LLC
InventorsSunkara Prasanth, Rajeev Verma, Venkateswara Reddy Maram, Vinay Ramu
Life of this patent
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Abstract
Systems and methods control operation of multiple compressors of a multi-compressor assembly on a vehicle. A controller determines a leak rate of a brake system of a vehicle. The controller changes a pressure threshold at which one or more compressors are activated to supply gas to the brake system based on the leak rate. The controller activates at least a first compressor of the one or more compressors to increase a gas pressure of the brake system based on the gas pressure of the brake system falling below the pressure threshold that is changed.
Claims14
A system comprising:
- a multi-compressor assembly configured to increase a pressure of a brake system in a vehicle, the multi-compressor assembly including a first compressor and at least a second compressor;
- and
- a controller configured to monitor the pressure of the brake system, the controller configured to activate the first compressor of the multi-compressor assembly responsive to the pressure of the brake system falling below a lower pressure threshold,
- the controller configured to continue monitoring the pressure of the brake system after activating the first compressor, and to activate the at least the second compressor of the brake system responsive to the first compressor reaching a decreased operational state,
- the controller configured to continue monitoring the pressure of the brake system while both the first compressor and the at least the second compressor are active, and to unload at least one of the first compressor or the at least the second compressor responsive to the pressure of the brake system reaching an upper pressure threshold.
A system comprising:
- a multi-compressor assembly having a first compressor and a second compressor configured to be coupled with a brake system of a vehicle, the multi-compressor assembly including a first contactor set configured to control contact between different groups of first poles of the first compressor and at least a first source of electric current that powers the first compressor, the multi-compressor assembly including a second contactor set configured to control contact between different groups of second poles of the second compressor and at least the first source of electric current that powers the second compressor;
- and
- a controller configured to control the first contactor set and the second contactor set to change which of the groups of the first poles of the first compressor and which of the groups of the second poles of the second compressor are connected with the at least the first source of electric current based on an operational state of the vehicle.
Dependencies are inferred from the claim text.