Control system for vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsHideo Watanabe, Junya Mizuno, Toshiyuki Tomita
Life of this patent
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Abstract
A control system for a vehicle configured to accurately learn an initial engagement position of a clutch. The control system is applied to a vehicle comprising a clutch that selectively transmits power between a prime mover and drive wheels, and a detector that detects an input speed of the clutch rotated by the prime mover. A controller executes a learning of the initial engagement position of the clutch, if a reaction time until an input speed of the clutch is changed by engaging the clutch gradually while maintaining the input speed of the clutch to a constant speed is shorter than a threshold period of time.
Claims7
A control system for a vehicle comprising:
- a prime mover;
- at least one pair of drive wheels;
- a clutch that selectively transmits power between the prime mover and the drive wheels, and that selectively interrupts power transmission between the prime mover and the drive wheels;
- and
- a detector that detects an input speed of the clutch rotated by an output torque of the prime mover,
- the control system comprising:
- a controller that controls the prime mover and the clutch, and that learns and corrects an initial engagement position of the clutch,
- wherein the controller is configured to
- maintain the input speed of the clutch to a constant speed by the output torque of the prime mover, and
- execute a learning of the initial engagement position of the clutch, if a reaction time until the input speed of the clutch is changed by engaging the clutch gradually while maintaining the input speed of the clutch to the constant speed is shorter than a threshold period of time.
Dependencies are inferred from the claim text.