Automatic clutch control system
US4518068A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1982 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | Mar 12, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H63/46
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
System is provided for controlling the pressure with which a clutch is engaged, with a slip rate e of the clutch, which is equal to the ratio of the rotational speed of a drive shaft thereof, as a main parameter. A microprocessor reads a throttle opening and the slip rate e from the initiation of engagement 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 time interval includes subintervals corresponding to l=0 to l=8 at maximum, from the initiation to the completion of the clutch engagement. Each subinterval l=0 to l=8 spans 0.4 sec. When a temporary clutch activation is instructed, the microprocessor changes the length of the subinterval from 0.05 to 0.1 sec, and also changes the time interval l to 0.8 sec. When the slip rate e is low at the initiation of the clutch engagement, a group of controlling data is selected which is to be a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.