TRANSMISSION SPEED CHANGE CONTROL SYSTEM

Abstract

A transmission speed change control system using effective torque force as a master control parameter instead of throttle percentage signal and engine speed signal. Response time of this system is extremely shorter than existing system, therefore, when this transmission speed change control system is used in cooperation with a continuously variable transmission, the real-time speed ratio matching, can be realized, and the transmission system is maintained in an optimal working condition at any time, so as to improve the transmission efficiency of the transmission system. Meanwhile, the load of the power source can be adjusted without abrupt change. Hence, the work efficiency of the power source is improved, and the service life thereof is prolonged. At the same time, compared with the existing transmission system, the composition and control logic of this control system are simpler and more efficient, and easier to calibrate and adjust.

Claims

1. A transmission speed change control system, comprising: a power input structure, a output structure, an effective torque force monitoring and feedback device, an effective torque force feedback signal transmission structure, a gearshift and a transmission, wherein an effective torque force monitoring and feedback structure is provided.

2. The transmission speed change control system of claim 1, wherein an effective torque force is used as a master control parameter, instead of using a throttle percentage signal, an engine speed signal, a vehicle speed signal or an engine crankshaft torque signal.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0026] The illustrated embodiment is only one of many implementations of the present invention. Other than basic system components, auxiliary system components can be added or removed according to actual needs.

PREFERRED EMBODIMENTS OF THE PRESENT INVENTION

[0027] The transmission in the system is a continuously variable transmission so as to realize accurate matching of the optimal gear ratio all the time

DETAILED DESCRIPTION

[0028] The present invention will be further explained with the following embodiment.

[0029] It should be noted that the following embodiment is only one of many implementations of the present invention.

[0030] A system in the embodiment as shown in FIG. 1 consists of a power input structure, an effective torque force monitoring and feedback structure, an effective torque force feedback signal transmission structure, a gearshift, a transmission, a driven structure, a power output structure etc.

[0031] The power input structure is connected with both the effective torque force monitoring and feedback structure and the transmission. The effective torque force monitoring and feedback structure transmits effective torque force monitoring signals to the gearshift through the effective torque force feedback signal transmission structure, and the gearshift performs corresponding gear shifting actions according to the effective torque force monitoring signals to change a gear ratio of the transmission, such that the gear ratio of the transmission is matched with the motion state of the power input source and the driven structure.

INDUSTRIAL APPLICABILITY

[0032] The system can be used in a scenario of matching a gear ratio for the power source of changing output torque involving speed ratio change control, such as: engine matching transmission, and speed ratio control of electro-motor in hydraulic servo.