Interrelated power delivery controls – including engine control – Transmission control – Transmission controlled by engine
Patent
1996-04-11
1998-09-08
Ta, Khoi Q.
Interrelated power delivery controls, including engine control
Transmission control
Transmission controlled by engine
477144, 477154, F16H 6100
Patent
active
058038647
ABSTRACT:
In the vehicle equipped with an ABS, a control system for reducing stopping distance in an abrupt braking operation and a method thereof includes an idle sensor for detecting an operating state of an accelerator pedal; a brake sensor for detecting an operating state of a brake pedal; a brake operation sensor for detecting an angle change of a brake pedal to output an electric signal corresponding thereto; an engine RPM sensor for detecting a rotation number of a crank gear to output an electric signal corresponding thereto, the sensor being equipped on an engine crank shaft and rotated by driving engine; a transmission control unit which when a power source is applied to the vehicle and the idle switch and the brake switch is worked, detects the angle change per hour of the brake pedal and then if the brake angle change is over the predetermined one, determines that as an abrupt braking state, and further detects the shift range set up by the operation of the shift lever as well as the current shift stage in accordance with the current shift range, and thus down-shifts into a lower stage than the current running shift stage; and an hydraulic pressure control valve for applying an hydraulic pressure to shift gear devices corresponding to shift signals output from the transmission control unit; and thereby when the driver abruptly pedals the brake, performs forceful down-shifting into a lower stage than the current shift stage.
REFERENCES:
patent: 5016496 (1991-05-01), Takizawa
patent: 5054336 (1991-10-01), Takizawa
patent: 5105923 (1992-04-01), Iizuka
patent: 5201251 (1993-04-01), Kitagawa et al.
patent: 5203235 (1993-04-01), Iizuka
patent: 5577979 (1996-11-01), Iizuka
Hyundai Motor Company
Ta Khoi Q.
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