发明授权
- 专利标题: Control of drive train noises during a shift operation of an automatic, variable speed transmission
- 专利标题(中): 在自动变速传动的变速操作期间控制传动系噪声
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申请号: US116133申请日: 1980-01-28
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公开(公告)号: US4314340A公开(公告)日: 1982-02-02
- 发明人: Nobuaki Miki , Mutsumi Kawamoto , Hiroyuki Amano , Tsuneo Hida , Tsuyoshi Yoshida
- 申请人: Nobuaki Miki , Mutsumi Kawamoto , Hiroyuki Amano , Tsuneo Hida , Tsuyoshi Yoshida
- 申请人地址: JPX Anjyo
- 专利权人: Aisin-Waner Kabushiki Kaisha
- 当前专利权人: Aisin-Waner Kabushiki Kaisha
- 当前专利权人地址: JPX Anjyo
- 优先权: JPX54-16481 19790214
- 主分类号: F16H61/08
- IPC分类号: F16H61/08 ; F16H59/18 ; F16H61/04 ; F16H61/18 ; B60K41/08 ; B60K41/22 ; G06F15/20
摘要:
A system for controlling the hydraulic pressure of a hydraulic control circuit associated with an automatic, variable speed transmission is provided. The hydraulic control circuit comprises a plurality of hydraulic pressure control valves, a plurality of flow path switching means and a plurality of solenoid valves, and operates to control the engagement and disengagement of the clutches and brakes disposed within the transmission. The energization of the solenoid valves of the hydraulic control circuit is controlled by an electronic system, which comprises a large scale integrated semiconductor logic unit, a semiconductor read-only memory, a semiconductor read-write memory and as required, input/output ports.A plurality of signals are applied to the electronic system, including a signal indicative of shift lever position supplied by shift lever detecting means, a signal indicative of the current vehicle speed supplied by vehicle speed signal generating means and a signal indicative of the throttle opening supplied by throttle opening detecting means. In response to these signals and in accordance with the program data and constants data, the electronic system determines a new gear ratio to be established. If the shift mode, defined by a combination of the current gear ratio and the new gear ratio to be established, has a likelihood to produce drive train noises, the shift controlling sub-program data is utilized to delay the timing at which the shift controlling solenoid valves are deenergized and energized, thus avoiding or reducing the occurrence of drive train noises during the shift operation.
公开/授权文献
- USD433209S Cremation urn vault 公开/授权日:2000-10-31