96results about How to "Degree of opening is decreased" patented technology

A vehicle has a straddle seat, a handlebar, an engine, an electronic control unit (ECU), a throttle valve, a throttle valve actuator, and a throttle operator. A throttle operator position sensor senses a throttle operator position. A vehicle speed sensor senses a vehicle speed. The ECU sends a control signal to the throttle valve actuator based on the throttle operator position and the vehicle speed. The throttle valve actuator adjusts the opening of the throttle valve in response to the control signal. If the vehicle speed is lower than a predetermined maximum vehicle speed, the throttle valve actuator adjusts the opening of the throttle valve based on the throttle operator position signal. If the vehicle speed is higher than the predetermined maximum vehicle speed, the throttle valve actuator reduces the degree of opening of the throttle valve. A method of controlling an engine is also disclosed.

A method and a device are provided for operating a vehicle having a combustion engine, which result in reduced fuel consumption in overrun operation. In the process, the air supply to the combustion engine is adjusted via an actuator. In overrun operation of the combustion engine, an opening degree of the actuator is set as a function of a driving situation.

A vehicle having a vehicle body, a seat, an engine, a throttle body, a throttle valve, a throttle valve actuator, a throttle operator, a throttle operator position sensor, a cruise control switch, and a vehicle speed sensor. An ECU controls operation of the engine in one of a normal operation mode and a cruise control operation mode. When in the normal operation mode, the ECU sends a first control signal to the throttle valve actuator based on the throttle operator position signal. When the cruise control switch engages the cruise control operation mode, the ECU sends a second control signal to the throttle valve actuator based on the vehicle speed signal such that the vehicle speed is maintained at a vehicle cruising speed. The ECU returns to the normal operation mode when the throttle operator position becomes less than or equal to a reference throttle operator position.

A sliding component has a metal base member and a coating layer. The metal base member has a sliding surface. The layer is made of silane-modified resin. The silane-modified resin is made from resin that is soluble in solvent and is equal to or higher in heat-resistant than epoxy resin. The coating layer is formed on the sliding surface.

A device for purifying exhaust gas of a diesel engine is equipped with a continuously regenerating diesel particulate filter (DPF) that uses a catalyst. A second continuously regenerating DPF of a small capacity is disposed in a by-path that by-passes the exhaust gas passage of the diesel engine equipped with the continuously regenerating DPF. The particulate matter (PM) is trapped by the second continuously regenerating DPF in the region of low exhaust gas temperatures. A homogeneous charge compression ignition is executed by advancing the timing for injecting the fuel into the cylinders to reduce the formation of PM. Therefore, the PM can be trapped to a sufficient degree despite the second continuously regenerating DPF has a small capacity. To suppress the formation of NOx, further, the cooled exhaust gas is recirculated into the cylinders and, besides, a urea-added SCR catalyst is disposed in the exhaust gas passage to reduce and decompose NOx in the exhaust gas to further reduce NOx.

A heating apparatus for a vehicle includes a pump for circulating cooling water in a cooling water circuit, a heating heat exchanger for heating air blown into a passenger compartment of the vehicle using cooling water as a heating source, and a throttle valve disposed at a discharge side of the pump. In the heating apparatus, when the temperature of cooling water is low and heating capacity for heating the passenger compartment is insufficient, an opening degree of the throttle valve is reduced by a control unit. Therefore, heat is generated from the throttle valve and the pump so that the temperature of cooling water is increased. Thus, heating capacity of the heating apparatus can be improved without using a manual operation.

A vehicle has a vehicle body, a seat, an engine, an ECU, a throttle body, a throttle valve, a throttle valve actuator, a throttle operator, and a throttle operator position sensor. A shifter is disposed on the vehicle in proximity to the seat for selecting a vehicle operation direction between a forward direction and a reverse direction. A vehicle operation direction sensor senses the vehicle operation direction. The ECU limits a maximum speed of the vehicle when it operates in the reverse direction. In another aspect, the ECU limits the degree of opening of the throttle valve when it operates in the reverse direction. Methods of controlling an engine are also disclosed.

In a die cushion apparatus, a pressurizing force acting on a die cushion pad is applied to a first piston of a hydraulic cylinder unit by the operation of a slide, the first piston slides inside a first cylinder and pressure oil in a first hydraulic chamber is pressurized. The first hydraulic chamber is linked to a second hydraulic chamber of a booster cylinder unit via a second check valve, so that the pressure oil of the first hydraulic chamber is pushed out into the second hydraulic chamber. When the pressure of the first hydraulic chamber is applied to a second piston, the second piston slides inside the second cylinder and gas of a gas pressure chamber is compressed, whereby a surge pressure is reduced.

An apparatus for detecting inter-cylinder air-fuel ratio imbalance in an engine is provided. The apparatus includes a turbocharger, a bypass passage configured to bypass a turbine of the turbocharger, a waste gate valve configured to selectively close the bypass passage, an air-fuel ratio sensor installed in a portion of an exhaust passage which portion is located on a downstream side of a junction between a downstream side of the turbine and a downstream side of the bypass passage, and a determination unit programmed to compare a value of a degree of fluctuation in an output from the air-fuel ratio sensor or a parameter correlated therewith with a predetermined threshold to perform inter-cylinder air-fuel ratio imbalance determination. The determination unit is programmed not to perform the imbalance determination when an opening degree of the waste gate valve is equal to or higher than a predetermined reference value.

The present invention discloses a control method for continuous casting steel pouring, wherein: Step one: measuring and reading a steel ladle pouring position signal by a steel ladle position sensor (14) mounted on a turntable of a steel ladle; Step two: judging whether the pouring of the steel ladle (1) has begun therein by a steel pouring optimization control computer (13); Step three: feeding a data of a steel slag measurement sensor (2) mounted above a steel ladle sliding nozzle (15) to an inferential controller; Step four: in the inferential controller, conducting a comparison between the read data of the steel slag measurement and the manually set value of steel slag, and back to the former step if the measured value of the steel slag measurement is smaller than the manually set value of steel slag; if the current measured value of the steel slag measurement is greater than the manually set value of the steel slag, outputting and feeding a cylinder control variable to a PI controller; Step five: conducting a comparison between the cylinder position signal output by the inferential controller and a cylinder position signal actually measured and a calculation in the PI controller, and an output control of the cylinder driving unit (5) drives the cylinder (3) to move, thus reducing the opening degree of the sliding nozzle (15) of the steel ladle.

a control apparatus for an internal combustion engine provided with a fuel vapor treatment system according to the invention includes a controller that discharges fuel vapor into an intake passageway by using the intake negative pressure, and which adjusts the amount of the intake air through the cooperative control of a variable control of at least one of the lift amount of an intake valve and the working angle of the intake valve, and a control of the degree of opening of a throttle valve. In addition, the control apparatus executes the variable control so that at least one of the lift amount and the working angle of the intake valve changes in accordance with the fuel vapor concentration in the fuel vapor treatment system.