Control system for internal combustion engine installed in vehic

Details Control system for internal combustion engine installed in vehic Control system for internal combustion engine installed in vehic

1990-09-11

1991-12-17

Diehl, Dwight

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74857, B60K 4106

Patent

active

050726315

ABSTRACT:
A control system for internal combustion engine installed in vehicle with automatic transmission which lowers the engine output torque for reducing the shock apt to be felt by the passengers of a vehicle equipped with an automatic transmission at the time of shifting gears. The clutch speed ratio between the transmission input and output shafts is calculated to compare with a first value. If the ratio goes beyond the first value, engine output torque is reduced by a first amount. Then the ratio is compared with a second value and if the ratio comes within the second value, the torque is further reduced by a second amount which is greater than the first amount. The ratio is continuously calculated and is again compared with a third value. When the ratio comes within the value, the torque is restored to the first reduction amount. The ratio is finally compared with the fourth value and if it comes within the value, the torque is fully restored to the initial state. Thus, the gear shift shock is avoided and as a secondary effect, clutch wear is reduced.

REFERENCES:
patent: 3791239 (1974-02-01), Schreiner
patent: 3792630 (1974-02-01), Hause
patent: 3913419 (1975-10-01), Sale et al.
patent: 4290323 (1981-09-01), Gospodar
patent: 4396625 (1982-08-01), Latsch et al.
patent: 4508088 (1985-04-01), Hasegawa et al.
patent: 4520694 (1985-06-01), Eschrich et al.
patent: 4596164 (1986-06-01), Hasegawa et al.
patent: 4685548 (1987-08-01), Holtermann et al.
patent: 4724723 (1988-02-01), Lockhart et al.
patent: 4760823 (1988-08-01), Yasuoka et al.
patent: 4924832 (1990-05-01), Abe
patent: 4933851 (1990-06-01), Ito et al.
patent: 4938100 (1990-07-01), Yoshimura et al.

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