Shift control device for vehicles

Abstract

Provided is a shift control device for vehicles for minimizing the prolongation of the required time from the time when the driver performs an operation to enable the vehicle to travel to the time when the vehicle comes to a travel possible state. A switch position update permission means (136) permits update of the switch position information stored in a switch position information storage device (116) on condition that a wall position detection control means (132) performs switch position recognition control. When a P-ECU (shift control device) (106) is switched from a nonactuated state to an actuated state, a switch position update means (134) updates the switch position information stored in the switch position information storage device (116) after the switch position update means (134) is permitted to update the switch position information by the switch position update permission means (136). Therefore, since the occasions the switch position information stored in the switch position information storage device (116) is updated assuming the switch position information is indefinite decrease, the prolongation of the required time can be minimized when the operation to enable the travel is performed after the P-ECU (106) is turned on next time.

Description

technical field [0001] The present invention relates to a vehicle including a parking lock device for selectively switching a switching position into a locked position and an unlocked position for restricting rotation of wheels by driving of an actuator, in particular based on the The shift-by-wire technology for shifting vehicle gears electronically with the required signal for switching positions. Background technique [0002] There is known a shift control device for a vehicle including a parking lock for switching a rotary gear rotating together with a wheel to a locked state in which a lock gear meshes with the rotary gear and an unlocked state in which the locked state is released. The device operates the actuator including the parking lock device based on the request signal, and switches between the locked state and the unlocked state, thereby electrically switching gears related to vehicle running, so-called shift-by-wire (SBW) )Way. For example, if the operating p...

AI Technical Summary

Problems solved by technology

Therefore, when the switching position information stored in the nonvolatile storage device is unknown, compared with the case where the switching position information is a P position or a non-P position, it is necessary to determine the switching position based on the vehicle speed through the vehicle control device. information, the shift control device receives more processes such as it, so it takes longer time to complete the P wall position detection control or the non-P wall position detection control from the time of the travel enabling operation.

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