Vehicle traction control method, system, controller and vehicle with such a system
AssigneeJaguar Land Rover Limited
InventorsJames Kelly, Andrew Fairgrieve
Life of this patent
Estimating the term…
Abstract
A vehicle control strategy provides for automatically controlled movement from rest with deliberate wheel slip to maximize thrust. Different wheel slip conditions are provided for different terrain types. Wheel slip may be progressively reduced as the vehicle reaches a steady state speed. The strategy may also be implemented to maintain vehicle progress on low friction surfaces. The vehicle driver may be commanded to vary a control input, such as accelerator pedal position.
Claims19
A method of setting a vehicle in motion, said method comprising:
- maintaining, by a controller, slip of one or more vehicle tires on a ground surface at a value that is in a range from 5-20%, the value being dependent on a type of terrain over which the vehicle is travelling.
A method of initiating motion of a vehicle on a low friction surface, the method comprising the steps of detecting loss of traction of the vehicle, implementing a strategy of maintaining slip of one or more vehicle tires on said surface in a range from 5-20%, the value being dependent on a type of terrain over which the vehicle is travelling, and during implementation of said strategy advising the vehicle driver of required control inputs to the vehicle.
A system for setting a vehicle in motion, said system comprising a controller configured to maintain slip of one or more vehicle tires on the ground surface at a value that is in a range from 5-20%, the value being dependent on a type of terrain over which the vehicle is travelling.
A controller for setting a vehicle in motion, said controller being adapted to automatically maintain slip of one or more vehicle wheels in a range from 5-20%, the value being dependent on a type of terrain over which the vehicle is travelling.
Dependencies are inferred from the claim text.