CONTROLLER AND SHIFT-BY-WIRE SYSTEM USING THE CONTROLLER
First Claim
1. A controller, comprising:
- a motor driver; and
a microcomputer connected to the motor driver to control a motor that drives a control object that has a park lock mechanism having a lock state and an unlock state, the lock state and the unlock state switched according to an operation position of the control object, whereinthe controller is configured to;
estimate a tilt of a vehicle;
detect whether the lock mechanism is in the lock state or in the unlock state; and
adjust a target rotation speed of the motor according to the estimated tilt when the operation position of the control object is changed for switching the lock state to the unlock state.
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Accused Products
Abstract
A shift-by-wire system, including a controller that includes a motor driver, and a microcomputer connected to the motor driver to control a motor that drives a control object. The control object has a park lock mechanism having a lock state and an unlock state. The lock state and the unlock state are switched according to an operation position of the control object. The controller is configured to estimate a tilt of a vehicle, detect whether the lock mechanism is in the lock state or in the unlock state, and adjust a target rotation speed of the motor according to the estimated tilt when the operation position of the control object is changed for switching the lock state to the unlock state.
15 Citations
4 Claims
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1. A controller, comprising:
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a motor driver; and a microcomputer connected to the motor driver to control a motor that drives a control object that has a park lock mechanism having a lock state and an unlock state, the lock state and the unlock state switched according to an operation position of the control object, wherein the controller is configured to; estimate a tilt of a vehicle; detect whether the lock mechanism is in the lock state or in the unlock state; and adjust a target rotation speed of the motor according to the estimated tilt when the operation position of the control object is changed for switching the lock state to the unlock state. - View Dependent Claims (2, 3)
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4. A shift-by-wire system comprising:
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a controller, comprising; a motor driver; and a microcomputer connected to the motor driver to control a motor that drives a control object that has a park lock mechanism having a lock state and an unlock state, the lock state and the unlock state switched according to an operation position of the control object, wherein the controller is configured to; estimate a tilt of a vehicle; detect whether the lock mechanism is in the lock state or in the unlock state; and adjust a target rotation speed of the motor according to the estimated tilt when the operation position of the control object is changed for switching the lock state to the unlock state; a shift position switcher switching a shift position of a control object based on a drive of the control object by using the motor; and a park lock mechanism taking a lock state when the shift position is in a park position and taking an unlock state when the shift position is in a position other than the park position.
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Specification