Electromagnetic clutch control device in infinitely variable gear of automobile

Abstract

Abstract PURPOSE:To lighten a shock caused by the inertia of a belt and the rapid change of a car speed by temporarily reducing clutch transmission torque when a device is used for a belt driving infinitely variable gear, etc., and an engine brake is operated. CONSTITUTION:When stepping an accelerator pedal, an accelerator switch is turned on to conduct a current to the coil 11 of an electromagnetic clutch provided between an engine and a belt driving infinitely variable gear, allowing the clutch to be directly coupled. Then, when operating the accelerator pedal so as to detach it at the time of normal running of a vehicle whose speed switch 101 is in ON state, an engine brake is operated, so that a negative pressure switch 88 for sensing the increase of air intake negative pressure is turned on. In that case, a transistor Tr 132 is turned off via an OR gate 121 to cut off the conduction to the coil 11, while Tr 132 is turned ON/OFF responding to the output of a multivibrator 122, allowing the clutch to be made a semi-clutch state.

Inventors

• 👤 Toshio Takano
• 👤 俊夫 高野
• 👤 Ryuzo Sakakiyama
• 👤 榊山　隆三

Bibliographic Details