OUTPUT CONTROL DEVICE FOR VEHICLE

• Main Authors: NISHIKAWA SUSUMU, YAMAZAKI TAKESHI, MIYATA YASUYUKI, HOSHIJIMA KINICHIRO, OOTAKE KATSUNORI
• Format: Patent
• Language: English
• Published: 22.03.1994
• Edition: 5
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; COMBUSTION ENGINES; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL; WEAPONS

PURPOSE:To maintain starting accelerating performance desirably by setting the target driving torque large when the friction coefficient of the road surface is large at the starting time of a vehicle in the case of reducing the actual driving torque independently of a driver's operation so as to become the target driving torque. CONSTITUTION:When the respective duty factors of plural solenoid valves 57, 61 are 100%, the pressure chamber of an actuator 47 comes to have negative pressure equal to the pressure in a vacuum tank 54, and a control rod 49 is pulled up. In this case, a throttle valve 34 is closed regardless of the depressed quantity of an accelerator pedal 40, so that the driving torque of an internal combustion engine 11 is reduced forcibly. A TCL 75 sets the target driving torque on the basis of the reference driving torque and the peripheral velocity of driving wheels 15, 16 detected by sensors 77, 78, and an ECU 28 controls the respective solenoid valves 57, 61 so that the actual value of the driving torque becomes the target value. In the case of the friction coefficient of the road surface being large at the starting time of a vehicle, the target driving torque is set large.