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.
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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