Controlling method and system for reducing tip-in shock
AssigneeHyundai Motor Company
InventorsKi Chang Kim, Kil Young Youn
Life of this patent
Estimating the term…
Abstract
A control method and system for reducing tip-in shock includes fixing a wheel with a wheel brake of a vehicle when an engine of the vehicle starts. A motor position sensor value is detected when a motor connected to the wheel through a plurality of gears is operated forward by a forward torque and a motor position sensor value when the motor is operated backward by a backward torque, by applying the forward torque and the backward torque to the motor with the wheel being fixed. An entire backlash generated between the plurality of gears is calculated on the basis of the motor position sensor values. A driving current for driving the motor is applied to the motor in accordance with the calculated entire backlash.
Claims9
A control method for reducing tip-in shock, comprising steps of:
- fixing a wheel with a wheel brake of a vehicle when an engine of the vehicle starts;
- detecting a motor position sensor value when a motor connected to the wheel through a plurality of gears is operated forward by a forward torque and a motor position sensor value when the motor is operated backward by a backward torque, by applying the forward torque and the backward torque to the motor with the wheel being fixed;
- calculating an entire backlash generated between the plurality of gears on the basis of the motor position sensor values;
- and
- applying a driving current for driving the motor to the motor in accordance with the calculated entire backlash.
A control system for reducing tip-in shock, comprising:
- a motor connected to a wheel through a plurality of gears and including a resolver which senses a position;
- a motor controller configured to control driving of the motor by applying a current to the motor, apply a forward torque and a backward torque to the motor, and receive a motor position sensor value when the motor is operated forward by the forward torque sensed by the resolver and a motor position sensor value when the motor is operated backward by the backward torque, from the resolver;
- and
- a vehicle controller configured to fix the wheel when an engine of a vehicle starts, receive the motor position sensor values from the motor controller, calculate an entire backlash generated between the plurality of gears on the basis of the motor position sensor values, and control the motor controller to drive the motor in accordance with the calculated entire backlash.
Dependencies are inferred from the claim text.