US 10,914,348 B2 · Control system and method for a vehicle having a continuously variable transmission

Abstract

A vehicle control system in a vehicle having a continuously variable transmission (CVT) system with a clutch mechanism modulates a torque capacity of the clutch mechanism. The CVT system in the vehicle further includes a primary pulley, a secondary pulley and a CVT belt for transmitting a torque to wheels from a power source rotatably connected with an input shaft. The clutch mechanism includes a forward (FWD) clutch between the power source and a CVT pulley assembly. The vehicle control system detects a wheel slip of the CVT system and controls a torque capacity of the FWD clutch, and the system is configured for avoiding a slip of the CVT belt by dissipating a spike torque generated by the wheel slip.

Claims16

Dependent claims

A vehicle control system in a vehicle having a continuously variable transmission (CVT) system including a CVT pulley assembly and a clutch mechanism for transmitting a torque to drive wheels of the vehicle from a power source rotatably connected with an input shaft, the vehicle control system comprising:

a communicator configured to detect a real time speed of at least one of the drive wheels;
and
a controller configured to:
evaluate an allowable target speed of the input shaft,
determine whether to activate the vehicle control system by comparing the real time speed of the at least one of the drive wheels to the allowable target speed, and
modulate a torque capacity of the clutch mechanism by activating the system when controller determines a wheel slip of the at least one of the drive wheels of the vehicle.

3 more elements

Dependencies are inferred from the claim text.

Control system and method for a vehicle having a continuously variable transmission

Life of this patent

Control system and method for a vehicle having a continuously variable transmission

Life of this patent

Abstract

Claims16