摘要:
In an embodiment, conductance of electricity to a heating element (4) for heating a throttle valve (2) of an automobile engine and a peripheral section thereof is performed only during a period wherein this heating can be performed effectively. Specifically, a controller (53) receives an output signal from an air flow sensor (54), and when a quantity of intake air is equal to or less than a predetermined “intake air quantity criterion for heating”, conduction of electricity to the heating element (4) is carried out. Conversely, when the quantity of intake air is greater than this “intake air quantity criterion for heating”, conduction of electricity to the heating element 4 is prohibited.
摘要:
In an embodiment, conductance of electricity to a heating element (4) for heating a throttle valve (2) of an automobile engine and a peripheral section thereof is performed only during a period wherein this heating can be performed effectively. Specifically, a controller (53) receives an output signal from an air flow sensor (54), and when a quantity of intake air is equal to or less than a predetermined “intake air quantity criterion for heating”, conduction of electricity to the heating element (4) is carried out. Conversely, when the quantity of intake air is greater than this “intake air quantity criterion for heating”, conduction of electricity to the heating element 4 is prohibited.
摘要:
A throttle control apparatus comprises a throttle valve placed in an intake passage, a motor for driving the throttle valve, an electronic control unit (ECU) for controlling the motor, and a throttle sensor for detecting an actual opening degree of the throttle valve. The ECU determines that the throttle valve is frozen when the actual opening degree does not reach a target opening degree even after a driving time for driving the motor has exceeded a predetermined time, and then stores the actual opening degree at the time as an icing opening degree. The ECU supplies a driving duty to cause the motor to produce required driving torque for removal of icing and reverses the driving duty by open control, and controls the motor to bring an accumulated value of a deviation between the target opening degree and the icing opening degree to zero, thereby repeatedly swinging the throttle valve.
摘要:
A throttle device includes a resin throttle body having a bore and a throttle valve placed in the throttle body to open and close the bore. The throttle body is formed of a valve part that includes the throttle valve and a duct part that does not include the throttle valve. The valve part and the duct part are formed separately and coupled to each other. A heater and a metal collar are attached to the valve part and the duct part.
摘要:
A throttle control apparatus comprises a throttle valve placed in an intake passage, a motor for driving the throttle valve, an electronic control unit (ECU) for controlling the motor, and a throttle sensor for detecting an actual opening degree of the throttle valve. The ECU determines that the throttle valve is frozen when the actual opening degree does not reach a target opening degree even after a driving time for driving the motor has exceeded a predetermined time, and then stores the actual opening degree at the time as an icing opening degree. The ECU supplies a driving duty to cause the motor to produce required driving torque for removal of icing and reverses the driving duty by open control, and controls the motor to bring an accumulated value of a deviation between the target opening degree and the icing opening degree to zero, thereby repeatedly swinging the throttle valve.
摘要:
When a computer determines that an accelerator pedal and a brake pedal are simultaneously stepped based on the signals from the accelerator position sensor and a brake switch, the first switch is turned off so that the accelerator sensor signal which will be transmitted into the computer is compulsorily made zero. A throttle-position command value which will be transmitted from the computer into a throttle actuator is reduced to a value corresponding to the idling state. If an engine output is not reduced, the computer turns off a second switch so that a throttle actuator is de-energized. A throttle valve is compulsorily brought into a position corresponding to an idling state by a biasing force of a throttle return spring.
摘要:
Disclosed is a vehicle control apparatus which can prevent the deterioration of drivability. The ECU can set a control accelerator opening degree to be converted when a control permission condition is established. The control accelerator opening degree is equal to or larger than an accelerator lower limit which is larger than an idle determination value for determining an automatic stopping of an engine by an eco-run. The control accelerator opening degree thus set can prevent the drivability from being deteriorated without the automatic stopping of the engine being caused even if the accelerator opening degree is converted to reduce the torque of the engine with the establishment of the control permission condition.
摘要:
Provided is a vehicle control apparatus that can prevent the drivability from being deteriorated. The vehicle control apparatus has an ECU which determines, when the control permission condition is not established, not to execute the reduction control in the case that the accelerator opening degree is smaller than or equal to the accelerator threshold value or the vehicle speed is smaller than or equal to the vehicle speed threshold value, even if a depression of an accelerator pedal is detected and a depression of a foot brake pedal is detected. Therefore, the vehicle control apparatus can stop the torque reduction control to prevent the reduction of the engine output contrary to the intention of the driver in the case that an impact to the vehicle is small such that a load more than necessary is not applied to the vehicle even if the accelerator pedal and the brake pedal are both depressed by the driver. As a result, the vehicle control apparatus can improve the operability of the vehicle in the situations such as hill start and overcoming steps, thereby preventing the drivability from being deteriorated.
摘要:
An engine mounted to a vehicle includes at least one manipulation member used for control of output of the engine. An electronic control unit controls the manipulation member in accordance with the driving condition of the engine. When it is determined that there is an abnormality in the electronic control unit, the amount of air drawn into the engine is fixed to a predetermined value and the amount of manipulation of the manipulation member is restricted. When the rotational speed of the engine becomes higher than the predetermined speed, the electronic control unit determines that there is an abnormality relating to the manipulation of the manipulation member.
摘要:
An improved device for supporting a spindle of an open-end spinning apparatus is provided with a ring shaped resiliently yieldable member rigidly disposed in a space between a bearing supporting the spindle and an inside cylindrical wall of a bushing member, and an additional ring shaped member rigidly disposed in the above-mentioned space separately from the resiliently yieldable member. To prevent accumulation of heat in the spindle, a plurality of grooves are formed on the peripheral surface of the bearing and/or inside surface of the resiliently yieldable member, and/or the additional member, respectively.