초록 ▼

In a throttle control system in which a controller monitors accelerator position and controls throttle valve position accordingly rather directly coupling the accelerator to the throttle valve, a sensor monitors vehicle driving conditions related to desired engine output response and the controller

In a throttle control system in which a controller monitors accelerator position and controls throttle valve position accordingly rather directly coupling the accelerator to the throttle valve, a sensor monitors vehicle driving conditions related to desired engine output response and the controller adjusts the relationship between throttle valve position and accelerator position in accordance with the detected vehicle driving conditions. Factors indicative of driving conditions monitored by the sensor may include wheel slippage and selection of reverse transmission gear, in which case the controller will reduce the stroke of the throttle valve when either excessive wheel slippage or reverse gear is detected. Each monitored factor may be associated with a distinct characteristic curve relating throttle valve position to accelerator position with the appropriate characteristics being selected by the controller in accordance with the detected vehicle driving conditions.

대표청구항 ▼

An intake air flow rate control system for an internal combustion engine comprising: a manually operable means for producing a demand air flow indicative signal; a sensor means adapted to monitor vehicle driving conditions in terms of a preselected vehicle driving parameter and to produce a sensor s

An intake air flow rate control system for an internal combustion engine comprising: a manually operable means for producing a demand air flow indicative signal; a sensor means adapted to monitor vehicle driving conditions in terms of a preselected vehicle driving parameter and to produce a sensor signal representative of the detected vehicle driving conditions, said sensor means including a wheel slippage sensor for producing a wheel slippage indicative signal when wheel slip is detected; an intake air flow rate adjusting means for controlling air flow rate through an air induction passage of the engine, said intake air flow rate adjusting means being responsive to a control signal to adjust the intake air flow rate in accordance therewith; and a controller receiving said demand air flow indicative signal and said wheel slippage indicative signal and deriving said control signal for controlling said intake air flow rate adjusting means, said control signal being variable according to a first predetermined characteristic which is selected from among a plurality of predetermined characteristics on the basis of said wheel slippage indicative signal, said controller including means for digitally storing said plurality of predetermined characteristics which includes a standard characteristic corresponding to a normal, non-slippage vehicle driving condition, said first predetermined characteristic being such as to vary the intake air flow rate relative to said demand intake air flow indicative signal at a lower rate than that in said standard characteristics.