Automatic clutch control system
AssigneeAishin Seiki Kabushiki Kaisha
InventorsTomio Oguma, Kouichiro Hirosawa, Tsutomu Mitsui
Life of this patent
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Abstract
Automatic clutch control to reduce shocks to a vehicle during a rapid switching of a shift lever between its drive D and reverse R positions. The shift lever position and the direction of movement of the vehicle are detected by means of a switch and an electrical circuit. A microprocessor delays the initiation of the clutch engagement by a given time as compared with the clutch engagement occurring when the vehicle is at rest, if the shift lever position is in contra-distinction to the direction of movement of the vehicle, namely, when the shift lever is in its drive D position while the vehicle is moving backward or when the shift lever is in its reverse R position while the vehicle is moving forward.
Claims10
An automatic clutch control system for a vehicle including a transmission having a shift lever and a clutch havihg a drive shaft and a driven shaft comprising;
- first speed detecting means for detecting the rotational speed of said drive shaft of said clutch, second speed detecting means for detecting the rotation of speed of said driven shaft of said clutch, direction detecting means for detecting the rotational direction of said driven shaft of said clutch, position detecting means for detecting the position of said shift lever, clutch engagement control means for controlling the degree of engagement of said clutch, clutch energizing means energizing said clutch engagement control means, and electronic control means connected to said first speed detecting means, said second speed detecting means, said direction detecting means, said position detecting means, and said clutch energizing means for generating and applying a clutch engagement control signal to said clutch energizing means to response to the speed of said drive shaft of said clutch and the speed of said driven shaft of said clutch and for retarding the clutch engagement by a predetermined time whenever the direction of rotation of said driven shaft of said clutch is in contradistinction to the rotational direction normally determined by said shift lever.
An automatic clutch control system for a vehicle including an engine having a throttle valve, a transmission having a shift lever and a clutch having a drive shaft and a driven shaft comprising;
- throttle valve detecting means for detecting the degree of opening of said throttle valve, first speed detecting means for detecting the rotational speed of said drive shaft of said clutch, second speed detecting means for detecting the rotational speed of said driven shaft of said clutch, direction detecting means for detecting the rotational direction of said driven shaft of said clutch, position detecting means for detecting the position of said shift lever, clutch engagement control means for controlling the degree of engagement of said clutch, clutch energizing means for energizing said clutch engagement controlling means, and electronic control means connected to said throttle valve opening detecting means, said first speed detecting means, said second speed detecting means, said direction detecting means, said position detecting means and said clutch energizing means for generating and applying a clutch engagement controlling signal to said clutch energizing means in response to the degree of opening of said throttle valve, the speed of said drive shaft of said clutch and the speed of the driven shaft of said clutch and for retarding the clutch engagement by a given time whenever the direction of rotation of said driven shaft of said clutch is in contradistinction to a rotational direction normally determined by said shift lever.
Dependencies are inferred from the claim text.