Vehicle anti-lock exhaust brake control system
AssigneeNissan North America, Inc.
InventorZachary Tullock
Life of this patent
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Abstract
A method of exhaust braking a vehicle includes determining a wheel slip ratio based on input from vehicle sensors. Based on a determination that the wheel slip ratio is unstable, the method further includes sending a command to reduce exhaust braking. Based on a determination that exhaust braking is reduced, the method further includes determining a change in wheel slip ratio over time based on input from the vehicle sensors. Based on a determination that the change in wheel slip ratio over time is stabilizing, the method further includes sending a command to increase exhaust braking.
Claims20
A method of exhaust braking a vehicle, comprising:
- determining a wheel slip ratio based on input from vehicle sensors;
- based on a determination that the wheel slip ratio is unstable, sending a command to reduce exhaust braking;
- based on a determination that exhaust braking is reduced, determining a change in wheel slip ratio over time based on input from the vehicle sensors;
- and
- based on a determination that the change in wheel slip ratio over time is stabilizing, sending a command to increase exhaust braking.
A controlling component, comprising:
- a non-transitory memory;
- and
- a processor configured to execute instructions stored in the non-transitory memory to:
- determine a wheel slip ratio based on input from vehicle sensors;
- based on a determination that the wheel slip ratio is unstable, send a command to reduce exhaust braking;
- based on a determination that exhaust braking is reduced, determine a change in wheel slip ratio over time based on input from the vehicle sensors;
- and
- based on a determination that the change in wheel slip ratio over time is stabilizing, send a command to increase exhaust braking.
A vehicle, comprising:
- sensors disposed on the vehicle;
- and
- a controlling component in communication with the vehicle sensors, comprising:
- a non-transitory memory;
- and
- a processor configured to execute instructions stored in the non-transitory memory to:
- determine a wheel slip ratio based on input from the vehicle sensors;
- based on a determination that the wheel slip ratio is unstable, send a command to reduce exhaust braking;
- based on a determination that the wheel slip ratio is stable, maintain exhaust braking at a current level;
- based on a determination that exhaust braking is reduced, determine a change in wheel slip ratio over time based on input from the vehicle sensors;
- based on a determination that the change in wheel slip ratio over time is stabilizing, send a command to increase exhaust braking;
- and
- based on a determination that the change in wheel slip ratio over time is not stabilizing, send a command to further reduce exhaust braking.
Dependencies are inferred from the claim text.