Patent ID: 11970154
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 10:
11. A control system for controlling wheel flare of one or more wheels of a vehicle, comprising:
a wheel slip control loop including a wheel slip controller configured to control wheel slip based on wheel speed measured at one or more wheels of the vehicle;
a wheel flare control loop including a wheel flare controller configured to control wheel flare based on transmission output speed at an output of a transmission of the vehicle, the wheel flare controller configured to sample the transmission output speed of the transmission of the vehicle at a sampling rate of 6.25 ms or less; and
a controller configured to:
select one of the wheel slip controller to control the wheel slip and the wheel flare controller to control the wheel flare during operation of the vehicle;
select the wheel flare controller to control the wheel flare for a predetermined period in a range between 25 ms and 250 ms, after the measured wheel speed exceeds a predetermined wheel speed reference or transmission output acceleration exceeds a predetermined transmission output acceleration reference; and
after the predetermined period, select the wheel slip controller to control the wheel slip, wherein,

the wheel slip control loop includes a first amplifier, a first summer, and a first plant, the first amplifier is configured to multiply an output of the first summer by a drive ratio and output an output speed reference to the wheel slip controller, and the wheel slip controller is configured to output a wheel slip control torque command to the first plant, and
the wheel flare control loop includes a second amplifier, a second summer, and a second plant, the second amplifier is configured to multiple a wheel speed reference by the drive ratio and output an output speed reference to a non-inverting input of the second summer, the second summer is configured to supply an output to the wheel flare controller, and the wheel flare controller is configured to output a wheel flare control torque command to the second plant.