Interrelated power delivery controls – including engine control – Transmission control – With brake control
Patent
1996-10-11
1998-11-03
Bonck, Rodney H.
Interrelated power delivery controls, including engine control
Transmission control
With brake control
192216, B60K 4126
Patent
active
058301054
ABSTRACT:
An auxiliary brake apparatus is provided that includes an exhaust brake system for restricting a channel area of an exhaust passage so as to increase a resistance to rotary motion of an engine, and a retarder disposed between an automatic transmission and vehicle wheels, for generating a braking force that resists an engine brake torque transmitted to the automatic transmission. The auxiliary brake apparatus further includes a required braking force determining device for determining a braking force applied to a vehicle body during down-shifting, depending upon a vehicle speed and a type of shifting, before the automatic transmission is shifted down while the exhaust brake system is actuated, and a retarder braking force control device for causing the retarder to generate a braking force during the down-shifting so that an engagement load applied to an engaging element of the automatic transmission becomes not greater than a predetermined level when the exhaust brake system and the retarder generate the braking force determined by the required braking force determining device.
REFERENCES:
patent: 4309918 (1982-01-01), Miller et al.
patent: 4497219 (1985-02-01), Elsner
patent: 5107725 (1992-04-01), Takahashi
patent: 5282399 (1994-02-01), Sano et al.
patent: 5351795 (1994-10-01), Dadel et al.
patent: 5362285 (1994-11-01), Sano et al.
Bonck Rodney H.
Jatco Corporation
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