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US 12,005,885 B2Granted
System comprising a control device for a utility vehicle, as well as a method for operating a utility vehicle with the system
AssigneeZf Cv Systems Europe BV
InventorsJohannes Heseding, Gerd Schuenemann
Life of this patent
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Abstract
A system with a control unit for a utility vehicle includes a data port configured to receive an acceleration request signal indicating a request for an acceleration change of at least one driven axle of the utility vehicle. The control unit further includes a controller configured to produce drive control signals for an electric drive of the driven axle depending on the acceleration request signal, and brake control signals for a friction brake system of the driven axle depending on the acceleration request signal.
Claims15
A method for controlling slip of a utility vehicle, the method comprising:
- receiving an acceleration request signal from a data port of a control unit, the acceleration request signal comprising a request for an acceleration change of at least one driven axle of the utility vehicle;
- generating drive control signals that drive an electric drive of the at least one driven axle based on the acceleration request signal using a controller of the control unit:
- generating brake control signals that control a friction brake system of the at least one driven axle based on the acceleration request signal using the controller of the control unit;
- outputting the generated drive control signals to at least one power amplifier of an inverter of the control unit;
- providing energy from an energy store that supplies at least one electric motor of the electric drive based on the drive control signals using the at least one power amplifier;
- generating a slip signal using the control unit, the slip signal indicating a slip value of one or more wheels of at least one drive axle which is above a predefined threshold value:
- and
- generating the drive control signals and the braking control signals based on the acceleration request signal and the slip signal.
5 more elements
Dependencies are inferred from the claim text.