POWER TRANSMISSION CONTROL DEVICE
First Claim
1. A power transmission control device comprising:
- a first rotation shaft;
a power source provided to be able to adjust a rotation speed of the first rotation shaft;
a second rotation shaft which rotates in conjunction with an axle;
a first rotation speed detection unit which detects the rotation speed of the first rotation shaft;
a second rotation speed detection unit which detects a rotation speed of the second rotation shaft;
an engagement member which rotates integrally with one shaft of the first rotation shaft and the second rotation shaft and is provided to be movable in an axial direction with respect to the one shaft;
a target engagement member which is provided to be relatively rotatable with respect to the one shaft and rotates in conjunction with the other shaft of the first rotation shaft and the second rotation shaft;
an actuator which operates to move the engagement member in the axial direction; and
a control unit,wherein the control unit is configured to be able to executea differential rotation calculation process for calculating differential rotation between the engagement member and the target engagement member on the basis of the rotation speed of the first rotation shaft detected by the first rotation speed detection unit and the rotation speed of the second rotation shaft detected by the second rotation speed detection unit,a differential rotation control process for making the differential rotation coincide with a predetermined differential rotation by adjusting a rotation speed of the power source, andan engagement control process for operating the actuator to establish the engagement between the engagement member and the target engagement member, after the differential rotation coincides with the predetermined differential rotation by the differential rotation control process,wherein the actuator has an elastic member which is deformed by transmitting a load received by the engagement member, andwherein the rotation speed of the power source is adjusted so that the differential rotation coincides with the predetermined differential rotation which is set on the basis of a natural frequency generated in conjunction between the actuator and the engagement member by the elastic member, at the time of execution of the differential rotation control process.
1 Assignment
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Accused Products
Abstract
Provided is a power transmission control device capable of reliably performing engagement between an engagement member and a target engagement member, by operating the engagement member to slide by an actuator having an elastic member deformed by transmitting a load received by the engagement member. An actuator has an elastic member, and a control unit calculates the differential rotation between an engagement member and target engagement members on the basis of the detected rotation speeds of a first rotation shaft and a second rotation shaft, and makes differential rotation coincide with a predetermined differential rotation by adjusting the rotation speed of power sources. After the differential rotation coincides with the predetermined differential rotation, in establishing the engagement, the predetermined differential rotation sets the differential rotation on the basis of a natural frequency generated in conjunction between the actuator and the engagement member by the elastic member.
0 Citations
6 Claims
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1. A power transmission control device comprising:
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a first rotation shaft; a power source provided to be able to adjust a rotation speed of the first rotation shaft; a second rotation shaft which rotates in conjunction with an axle; a first rotation speed detection unit which detects the rotation speed of the first rotation shaft; a second rotation speed detection unit which detects a rotation speed of the second rotation shaft; an engagement member which rotates integrally with one shaft of the first rotation shaft and the second rotation shaft and is provided to be movable in an axial direction with respect to the one shaft; a target engagement member which is provided to be relatively rotatable with respect to the one shaft and rotates in conjunction with the other shaft of the first rotation shaft and the second rotation shaft; an actuator which operates to move the engagement member in the axial direction; and a control unit, wherein the control unit is configured to be able to execute a differential rotation calculation process for calculating differential rotation between the engagement member and the target engagement member on the basis of the rotation speed of the first rotation shaft detected by the first rotation speed detection unit and the rotation speed of the second rotation shaft detected by the second rotation speed detection unit, a differential rotation control process for making the differential rotation coincide with a predetermined differential rotation by adjusting a rotation speed of the power source, and an engagement control process for operating the actuator to establish the engagement between the engagement member and the target engagement member, after the differential rotation coincides with the predetermined differential rotation by the differential rotation control process, wherein the actuator has an elastic member which is deformed by transmitting a load received by the engagement member, and wherein the rotation speed of the power source is adjusted so that the differential rotation coincides with the predetermined differential rotation which is set on the basis of a natural frequency generated in conjunction between the actuator and the engagement member by the elastic member, at the time of execution of the differential rotation control process. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification