Automatic clutch control system
First Claim
1. An automatic clutch control system for a vehicle of the type having an engine for driving a drive shaft, said engine having a throttle, and said vehicle further comprising a clutch for coupling said drive shaft to a driven shaft, said system comprising:
- first speed detecting means for detecting a rotational speed of said drive shaft;
second speed detecting means for detecting the rotational speed of said driven shaft;
throttle detecting means for detecting the throttle opening of said engine;
clutch engagement control means for controlling the degree of engagement of said clutch in accordance with a clutch engagement control signal; and
electronic control means coupled to said first and second speed detecting means, said throttle detecting means and said clutch control means, for specifying, with a predetermined time period, a particular group of controlling signal data, which is assigned to a time segment corresponding to said period for clutch engagement control, in accordance with at least the rotational speed of the driven shaft of the clutch and the throttle opening, and applying successive data in the particular group to the clutch engagement control means at a given subinterval of a divided length of the time segment, said electronic control means, after the specification of a subsequent particular group of controlling signal data, comparing the first data of the subsequent group with the last data of a preceding particular group of controlling signal data and correcting the data assigned to a subsequent time segment.
1 Assignment
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Accused Products
Abstract
System is provided for controlling the pressure with which a clutch is engaged, with the throttle opening and the rotational speed of a driven shaft of the clutch. A microprocessor reads a throttle opening and the rotational speed of the driven shaft of the clutch at a time interval of 0.4 sec, and accesses a particular group of controlling data which control the clutch engagement and which are grouped together as a function of a time lapse l as well as the read values of these parameters. During the interval of 0.4 sec, the microprocessor sequentially outputs the controlling data of the particular group with a time subinterval of 0.05 sec. The system detects a difference between the last data of a preceding particular group and the first data of a subsequent particular group at the renewal of the data group and then corrects subsequent data for controlling clutch control pressure so as to smooth the change of the clutch control pressure.
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Citations
9 Claims
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1. An automatic clutch control system for a vehicle of the type having an engine for driving a drive shaft, said engine having a throttle, and said vehicle further comprising a clutch for coupling said drive shaft to a driven shaft, said system comprising:
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first speed detecting means for detecting a rotational speed of said drive shaft; second speed detecting means for detecting the rotational speed of said driven shaft; throttle detecting means for detecting the throttle opening of said engine; clutch engagement control means for controlling the degree of engagement of said clutch in accordance with a clutch engagement control signal; and electronic control means coupled to said first and second speed detecting means, said throttle detecting means and said clutch control means, for specifying, with a predetermined time period, a particular group of controlling signal data, which is assigned to a time segment corresponding to said period for clutch engagement control, in accordance with at least the rotational speed of the driven shaft of the clutch and the throttle opening, and applying successive data in the particular group to the clutch engagement control means at a given subinterval of a divided length of the time segment, said electronic control means, after the specification of a subsequent particular group of controlling signal data, comparing the first data of the subsequent group with the last data of a preceding particular group of controlling signal data and correcting the data assigned to a subsequent time segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification