摘要:
An automatic-clutch control system of a transmission for a vehicle is arranged to calculate a deceleration of the vehicle when shifting is not being executed, when an automatic shift mode is being selected, when an idle switch is set at ON state, and when a brake switch is set at OFF state, and when the vehicle is being decelerated. Further, the automatic-clutch control system decreases an engagement force of the automatic clutch according to an increase of the deceleration and a decrease of a vehicle speed to vary the engagement state.
摘要:
A vehicle clutch control system that can eliminate discomfort due to a sudden start of a vehicle. The vehicle clutch control system includes an engine speed detector (203) for detecting an engine revolution speed, and an engine controller (211) for controlling an accelerator opening of an engine (222). A vehicle speed detector (204) is also provided for detecting vehicle speed. A clutch actuator (212) engages and disengages a friction clutch (304), and a clutch controller (205) controls engagement and disengagement of the clutch by giving commands to the clutch actuator. In a vehicle start stand-by state in which the vehicle speed is zero and a certain start gear has been selected, if the engine speed detected by the engine speed detector (203) is higher than a predetermined speed, then a clutch engaging control is not performed because otherwise the vehicle would start suddenly upon clutch engagement.
摘要:
Apparatus for controlling vehicle drive system including a transmission (16) disposed between drive power source (12) and drive wheel (84), and automatic clutch (14) disposed between the transmission and the drive power source. The apparatus includes at least one of: a low-speed drive position detecting device (116, S2, 190) for detecting that a low-speed drive position of the transmission suitable for starting the vehicle is currently selected; a selected drive position determining device (116, S8) for determining a currently selected drive position of the transmission on the basis of a detected speed ratio of input and output members (42, 44) of the transmission; and a shifting completion determining device (116, S3, S5, SB6, 182) using a single switch, for determining that a shifting action of the transmission is completed, so that the automatic clutch is controlled after the shifting action.
摘要:
Disclosed is an automatic clutch (2) for an engine-transmission unit in a vehicle with random gear changing (3). A sensor technology is used for determining the parameters to be taken into account for the automated clutch control (2). The sensing device includes a speed or driving notch display (3), so that, when normally changing the gear or driving notch, the transition over the neutral gear or idle is not displayed.
摘要:
An automatic clutch control system (200) is provided featuring programs for establishing optimum clutch engagement starting position (CPO) under varying operating conditions. The programs include the steps of both slow and rapid clutch engagement and preferably the storage of the (CPO) determined as a fault signal whenever its fractional relationship to the previously stored optimum clutch engagement starting position (CPN) exceeds a predetermined fraction (C6) that is less than one.
摘要:
An automatic transmission with an engine rpm sensor fault detector includes a starter switch (18); a clutch (6) for transmitting an output of an engine (8); a clutch control unit for controlling engagement of the clutch; a transmission (1); an engine rpm sensor (9); a an input shaft sensor (5a); a gear position sensor (40a) for detecting a gear position of the transmission; a control unit (4) for controlling the clutch control unit based on outputs of the respective detectors and enables the starter switch to operate when the transmission is in a neutral position. The control unit includes a starter switch detector (40b) for determining whether the starter switch is on and a fault determination unit (40c) for determining whether the first detector is faulty. The fault determination unit controls the clutch control unit to engage the clutch temporarily if there is no output from the first detector with the starter switch on and determines that the first detector is faulty if there is an output from the second detector.
摘要:
In a method for correcting clutch data used for controlling the engaging/disengaging operation of a friction type vehicle clutch (3), the meet position data among the clutch data is updated by a learning operation at each operation of a predetermined operation member (21a) of the vehicle, and the updated meet position data is corrected in accordance with the engine speed during the actual operation of the clutch (3), each time the vehicle is driven off, whereby appropriate correction of the clutch data can be carried out at a suitable time intervals.