Control device and method for failures of belt ring of metal belt of continuously variable transmission
A continuously variable transmission and failure control technology, applied in control devices, transmission device control, transportation and packaging, etc., can solve problems such as CVT transmission failure, belt ring fracture, and CVT life decline, so as to reduce the risk of fracture failure and avoid Fretting and flutter effects, simple structure effects
Active Publication Date: 2021-03-23
XIANGTAN UNIV
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Problems solved by technology
[0003] Under the condition of high-speed operation of electric vehicles, especially when it exceeds 8000 rpm, the CVT "pulley-metal sheet-belt ring" discontinuity will produce fretting friction and flutter effects when the discontinuity of the CVT contacts, that is, the belt ring is on the saddle surface of the steel sheet Back and forth and up and down, the belt ring is very easy to wear and fatigue cracks will occur, which will eventually lead to the breakage of the belt ring, which will cause the CVT transmission to fail, and the life of the CVT will be greatly reduced
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[0029] The present invention will be further described below in conjunction with the accompanying drawings.
[0030] Such as figure 1 Shown, the CVT metal belt belt ring failure control device of the present invention includes camera 4, CVT, control device and failure calculation unit; Axle 2, driving wheel oil inlet 3, metal belt 5, driving wheel oil inlet pipe 6, driven wheel oil inlet 7, driven wheel fixed cone 8, driven wheel driving cone 9, driven wheel oil inlet pipe 10, driven wheel shaft 17 and the hydraulic system 11, the hydraulic system 11 is connected to the driving wheel oil inlet 3 and the driven wheel oil inlet 7 through the driving wheel oil inlet pipe 6 and the driven wheel oil inlet pipe 10 respectively. Drive motor 15 links to each other with driving wheel shaft 2, and driving wheel shaft 2 is fixedly connected with driving wheel fixed cone 16, and driving wheel moving cone 1 can slide left and right on driving wheel shaft 2, and thereon is used for the hyd...
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The invention discloses a control device and method for failures of a belt ring of a metal belt of a continuously variable transmission. The control device comprises a camera, the continuously variable transmission, a control device body and a failure calculation unit; the camera is arranged between a driving wheel shaft and a driven wheel shaft of the continuously variable transmission, the lensaxis of the camera is parallel to the axis of the driving wheel shaft, and a lens is opposite to the belt ring of the metal belt of the continuously variable transmission; the control device comprisesa TCU, a motor controller and a failure calculation unit, the motor controller is connected with the failure calculation unit, the failure calculation unit is connected with the TCU, and the TCU is connected with a stepless speed change hydraulic system; and the failure calculation unit is connected with the camera and receives a belt ring bounce signal value captured by the camera. The control device is simple in structure and low in cost, the risk that the metal belt of the continuously variable transmission breaks and fails under the high-rotating-speed condition can be reduced, and it isguaranteed that the continuously variable transmission can be applied to an electric automobile.
Description
technical field [0001] The invention relates to a device and method for controlling failure of a metal belt ring of a continuously variable transmission. Background technique [0002] After scientific and technological breakthroughs, my country has made significant progress in electric vehicle technology, and the overall technical level is close to the international advanced level. However, in terms of transmission system technology, electric vehicles all use single-speed ratio reducers, which have problems such as large motor volume and energy consumption, high motor temperature at low efficiency stages, low battery life, and insufficient acceleration performance at medium and high speed stages. In the long run, it will be the development trend of electric vehicles in the future to equip motors with multi-speed transmissions. The multi-speed transmissions currently in use mainly include the following three types: hydraulic automatic transmission (AT), electromechanical aut...
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IPC IPC(8): F16H61/662B60K17/06
CPCF16H61/662B60K17/06F16H2061/6604
Inventor 刘金刚王高升肖培杰傅兵何丽红赵又红陈建文
Owner XIANGTAN UNIV