System for stabilizing idling of vehicular engine

Claim 1

A system for stabilizing idling operation of a vehicular engine, comprising: a power steering system comprising a hydraulic power unit (5) for providing power assistance to the steering system of the vehicle, a hydraulic fluid pump (9) for supplying a hydraulic fluid under pressure to the power unit, sensing means (29) for sending at least one variable indicating steering conditions of the vehicle, and controlling means (33) connected with the sensing means for generating a driving signal to control the fluid pump in an on/off control mode in accordance with the variable sensed by the sensing means, low speed detecting means (38) for generating a low speed signal when a vehicle speed is below a predetermined speed, judging means (41), connected with said controlling means of said power steering system and said low speed detecting means, for generating an actuating signal when both of said driving signal and said low speed signal are present, and engine rotational speed adjusting means (42), connected with said judging means, for increasing the supply of an air fuel mixture to the engine by a predetermined amount when said actuating signal is generated by said judging means.

Claim 2

A system for stabilizing idling operation of a vehicular engine, comprising: a power steering system comprising a hydraulic power unit (5) for providing power assistance to the steering system of the vehicle, a hydraulic fluid pump (9) for supplying a hydraulic fluid under pressure to the power unit, sensing means (29) for sending at least one variable indicating steering conditions of the vehicle, and controlling means (33) connected with the sensing means for generating a driving signal to control the fluid pump in an on/off control mode in accordance with the variable sensed by the sensing means, low speed detecting means (38) for generating a low speed signal when a vehicle speed is below a predetermined speed, judging means (41), connected with said controlling means of said power steering system and said low speed detecting means, for generating an actuating signal when both of said driving signal and said low speed signal are present, and engine rotational speed adjusting means (42), connected with said judging means, for increasing the supply of an air fuel mixture to the engine by a predetermined amount when said actuating signal is generated by said judging means.

Claim 5

A system for stabilizing idling operation of a vehicular engine, comprising: a power steering system comprising a hydraulic power unit (5) for providing power assistance to the steering system of the vehicle, a hydraulic fluid pump (9) for supplying a hydraulic fluid under pressure to the power unit, sensing means (29) for sensing at least one variable indicating steering conditions of the vehicle, and controlling means (33) for generating a driving signal to control the fluid pump in an on/off control mode in accordance with the variable sensed by the sensing means, low speed detecting means (38) for generating a low speed signal when an engine rotational speed is below a predetermined speed, judging means (41) connected with said controlling means of said power steering system and said low speed detecting means for generating an actuating signal when both of said driving signal and said low speed signal are present, and engine rotational speed adjusting means (42) connected with said judging means for increasing the supply of an air fuel mixture to the engine by a predetermined amount when said actuating signal is generated by said judging means.

Claim 6

A system for stabilizing idling operation of a vehicular engine, comprising: a power steering system comprising a hydraulic power unit (5) for providing power assistance to the steering system of the vehicle, a hydraulic fluid pump (9) for supplying a hydraulic fluid under pressure to the power unit, sensing means (29) for sensing at least one variable indicating steering conditions of the vehicle, and controlling means (33) for generating a driving signal to control the fluid pump in an on/off control mode in accordance with the variable sensed by the sensing means, low speed detecting means (38) for generating a low speed signal when an engine rotational speed is below a predetermined speed, judging means (41) connected with said controlling means of said power steering system and said low speed detecting means for generating an actuating signal when both of said driving signal and said low speed signal are present, and engine rotational speed adjusting means (42) connected with said judging means for increasing the supply of an air fuel mixture to the engine by a predetermined amount when said actuating signal is generated by said judging means.