78 results about "Wastegate" patented technology

The invention provides a turbocharger deflation valve which comprises an execution rod, the execution rod penetrates through a center hole of a valve body and then is fixedly connected with a valve cover, the valve cover is in compression connection with a deflation hole of a turbine box, the valve body is fixed to a deflation valve seat hole of the turbine box, a compression spring is installed in the valve body, and the compression spring is connected with the execution rod in a sleeved mode. A gap is formed between the thrust acting disc and the valve body in the axial direction, the valve bonnet is installed at the upper end of the valve body, the compression spring is compressed in the valve body through the valve bonnet, and when the turbine inlet pressure reaches a set value, the valve deck pushes the execution rod to move upwards to compress the compression spring so that the valve deck can be opened. According to the turbocharger deflation valve, air does not need to be guided from the air compressor end for control, the turbocharger deflation valve is directly installed on a turbine box, the structure is simple and compact, meanwhile, the deflation valve is not provided with a diaphragm, and the high temperature resistance and vibration resistance of the deflation valve are superior to those of a deflation valve of a traditional structure.

The utility model relates to the technical field of waste gas bypass valve, specifically is a kind of booster waste gas bypass valve mounting bracket, including support, the inside of the support is equipped with second sliding slot, the inside sliding installation connecting plate of second sliding slot, the both ends of connecting plate are respectively fixedly connected with first fixed plate and second fixed plate, the first fixed plate is equipped with first installation slot in the end away from connecting plate, the first installation slot is used for second valve mounting plate installation insertion, the second valve mounting plate fixed sleeve is connected on the outside upper portion of waste gas bypass valve body. By modular mounting bracket, make waste gas bypass valve insertion automatic locking;When disassembling, only need to press push block or push rod can be quickly unlocked, which makes waste gas bypass valve body and connecting rod can be completely independently disassembled and maintained, when repairing or replacing single component, there is no need to disassemble the whole mechanism as a whole, significantly simplify the operation process, reduce maintenance complexity and time cost.

A wastegate valve device is provided with: a valve body; one end side of the lever shaft is connected with the valve body; a lever plate provided on the other end side of the lever shaft; a lever pin protruding from the lever plate in the plate thickness direction of the lever plate; a lever including, on one end side, a plate-shaped joint portion in which an insertion hole through which the lever pin is inserted is formed; a driver for reciprocating the lever; and a beta-type pin attached to the lever pin and located on the opposite side of the lever plate with the joint portion therebetween in the plate thickness direction, the beta-type pin including: an insertion portion that extends in a straight line by inserting the lever pin into an extension hole extending in a direction orthogonal to the plate thickness direction; a locking part locked to the outer periphery of the lever pin and extending in a wave shape along the extension direction of the insertion part; a folded portion connecting one end of the insertion portion on one side in the extension direction and one end of the locking portion on one side in the extension direction; and an extension part extending toward the joint part with the other end of the other side in the extension direction of the locking part as a starting point, and the front end of the extension part is in contact with one end surface of the joint part on the side opposite to the lever plate side.

A turbo-boost controlled intake system is disclosed that provides a driver of a vehicle with greater control over vehicle performance. The turbo-boost controlled intake system includes a control module that is coupled with an aircharger air intake. The control module instructs an electronic control unit of the vehicle to increase manifold pressure to a higher level before releasing the pressure through a waste gate so as to provide a greater power output of the engine. The turbo-boost controlled intake system further includes a wiring harness and a signal adjuster. The wiring harness couples the control module with a turbo inlet pressure sensor, a manifold absolute pressure sensor, and an electronic control unit of the vehicle. The signal adjuster includes a rheostat that enables manual adjustment of the power output of the engine.

The invention discloses a control method and device for an engine supercharger, the control method and device are applied to an engine supercharger control system, the engine supercharger control system comprises a controller, an engine, a waste gas bypass valve, a throttle valve and a supercharger, and the method comprises the steps that the current environment temperature is obtained, and a preset environment temperature range is combined; when the current environment temperature is not within the preset environment temperature range, the opening degree of the waste gas bypass valve is at least controlled and adjusted; the air inlet supercharging pressure of the current air inlet pipe is obtained, and the opening degree of the waste gas bypass valve is controlled and adjusted by combining the preset supercharging pressure difference range when the difference value between the current air inlet supercharging pressure and the previous air inlet supercharging pressure is not within the preset supercharging pressure difference range; and the mixed gas pressure is obtained, the preset mixed gas pressure threshold value is combined, and when the mixed gas pressure is smaller than the preset mixed gas pressure threshold value, the opening degree of the waste gas bypass valve and the opening degree of the throttle valve are controlled and adjusted. By utilizing the method, the noise and the oil consumption are reduced while the reliability is improved, and the user experience is improved.

Method for an engine (10), comprising: Adjusting a wastegate (26) in response to condensate formation conditions in a charge air cooler (80) when an intake pressure is higher than required to produce a manifold pressure required for a torque demand.

This improves the responsiveness of the actual boost pressure when the opening of the wastegate valve is changed. [Solution] The internal combustion engine comprises a cylinder, an intake passage, an exhaust passage, a turbocharger, and an actuator. The turbocharger includes a turbine wheel, a compressor wheel, a bypass passage, and a wastegate valve. The wastegate valve opens and closes the flow path of the bypass passage. The control device of the internal combustion engine acquires the actual boost pressure as the measured value of the boost pressure, which is the pressure in the portion downstream of the compressor wheel in the intake passage (S13). When the control device of the internal combustion engine changes the opening of the wastegate valve, it increases the amount of change in power supplied to the actuator when the amount of change in the actual boost pressure over a predetermined period is a first value, compared to when the amount of change in the actual boost pressure over a predetermined period is a second value which is greater than the first value (S51, S52).

The utility model provides a turbocharger vent valve small piece, which comprises a bypass structure, a valve and a gasket, and the valve connecting part of the bypass structure is formed by forging, so that the metal structure of the valve connecting part is more compact, and the defects of air holes and the like generated by a casting process are reduced. The strength and durability of the valve connecting part which is large in stress, small in size and prone to being damaged in the whole deflation valve small part are improved, and therefore the strength and durability of the whole deflation valve small part are improved. The bypass structure is provided with a first limiting face, the gasket is provided with a second limiting face matched with the first limiting face for limiting, the first limiting face can be machined when the valve connecting part is machined, the second limiting face can be machined when the gasket is machined, the two limiting faces are simple in structure and large in size, machining difficulty and machining steps are reduced, and machining efficiency is improved. Therefore, the manufacturing cost is reduced.

The application discloses a control method and related device of a turbocharger wastegate valve. The turbocharger wastegate valve is externally connected with a constant pressure reducing valve and a gas storage tank at a through hole. The high-pressure gas provided by the gas storage tank is output as constant pressure gas via the constant pressure reducing valve and acts on an actuator diaphragm. Therefore, after determining a target pressure after pressure of the turbocharger under a current driving condition, the constant pressure reducing valve outputs constant pressure gas according to the target pressure after pressure and an outlet pressure of the turbocharger, so that the output constant pressure gas meeting the demand is flexibly controlled according to the demand of the current driving condition. In this way, the stress on both sides of the actuator diaphragm is adjusted, and the actuator diaphragm is controlled to move according to the pressure difference on both sides, so that the opening degree of the turbocharger is adjusted to a target opening degree indicated by the target pressure after pressure, thereby meeting the demand under the current driving condition. Compared with the related art in which the through hole is directly connected with the atmosphere, the stress on the actuator diaphragm is no longer disturbed by the change of the atmospheric pressure caused by the change of the altitude, and therefore the high-altitude driving condition can be considered.

System (200) for one motor (12), comprising: - an engine inlet (23) with an air inlet throttle (22) which is flow-coupled with an engine inlet manifold (24) along an inlet channel (18), and a compressor (90) for charging an inlet air charge received along the inlet channel (18); - a first ejector (206) positioned above the air inlet throttle (22) and controlled by a first valve (208); - a second ejector (80) positioned in a compressor bypass stream and controlled by a second valve (86); - a common actuator (44) configured to simultaneously adjust a position of the first valve (208) and the second valve (86); and - a channel (84) connecting the second ejector (80) to the actuator (44), which is designed to direct the negative pressure generated by the second ejector (80) to the actuator (44); - a ventilation duct (202) that connects the duct (84) upstream of the compressor (90) to the inlet duct (18); and - a ventilation valve (204) positioned in the ventilation duct (202) or at an intersection of the ventilation duct (202) with the channel (84).

An engine system includes a spark-ignited engine having at least one cylinder, and at least one piston to compress an intake charge therein and provide a variable compression ratio. The system includes a pent-roof cylinder head to induce a tumble flow of intake charge. The system includes an air handling system to control air flow through a turbocharger system via at least one actuator within at least one of an intake air throttle, a wastegate, or an exhaust gas recirculation system. The system includes at least one sensor to sense at least one of a temperature or a knock condition, and at least one controller to control at least one of a rate of flow of the intake charge or the at least one actuator based on the at least one of the temperature or the knock condition to satisfy an efficiency target of the engine.

A fault handling method and apparatus. The fault handling method is suitable for fault detection and handling for a wastegate valve. The fault handling method comprises: acquiring fault information, a position feedback voltage and a target opening value of a wastegate valve, wherein the position feedback voltage represents the valve position of the wastegate valve; on the basis of the fault information, determining a fault type of the wastegate valve; and on the basis of the fault type, the position feedback voltage and the target opening value, determining a fault handling measure to executed for the wastegate valve.

Connecting plate (310) and socket (410) configured to be included in a wastegate actuator mechanism (300) of a wastegate system (200) of a turbocharger (100), wherein the material of the bushing (410) has a higher hardness than the material of the connecting plate (310), wherein the bushing (410) is pressed into an eye (311) of the connecting plate (310), and wherein the connecting plate (310) and the bushing (410) are configured to prevent relative movement of the connecting plate (310) and the bushing (410) in a circumferential direction and / or in a longitudinal direction by exerting pressure on a deformation area (A) of the connecting plate (310) and formed bulges of material (316) of the connecting plate (310).

Diagnostic procedures for a turbocharged internal combustion engine in a vehicle, including: Activating a monitoring device and adjusting an actuator during the operation of an internal combustion engine with a closed-loop turbocharger boost control system by a controller, and providing an indication of deterioration by the controller based on the duration of an actual deviation exceeding a threshold deviation level between an expected change in boost pressure and an actual change in boost pressure over a driving cycle without referencing a command or measurement of a variable geometry turbine (VGT) or wastegate, where the internal combustion engine is operated by the control system with a closed-loop turbocharging control under conditions other than idle conditions, which includes any of the passage of a threshold vehicle running time, reaching a threshold combustion engine temperature and maintaining a threshold intake manifold pressure.

The utility model discloses a shock absorption and noise reduction device of a turbocharger waste gas bypass valve. The shock absorption and noise reduction device is a shock absorption and noise reduction element which has certain elasticity and can clamp an actuator push rod, a crank and a shaft pin in the middle. Comprising a baffle pressed on the surface of the actuator push rod, a pressing plate pressed on the surface of the crank and a third bending area for elastically connecting the baffle with the bottom of the pressing plate. A limiting ring capable of surrounding the E-shaped clamp spring is arranged in the middle of the baffle, the middle of the top of the baffle is bent in the direction away from the actuator push rod to form a first bent area, the two sides of the top of the baffle extend upwards to form two extending arms, and the ends of the extending arms are bent in the direction towards the actuator push rod to form second bent areas. The high-frequency noise reduction device can reduce high-frequency noise generated by mechanical vibration of the actuator push rod, the shaft pin and the crank, and meanwhile has the advantages of being simple in structure, convenient and fast to install, stable in operation under the high-temperature working condition, long in service life and low in failure rate.

The invention relates to a method for reducing cold-start emissions in a vehicle (10). Control signals are issued to open a wastegate, rotate a turbine (314), and activate a catalyst heater (206) arranged between the turbine (314) and a catalyst (310) in response to a trigger signal. The rotation of the turbine (314) causes recirculated air to flow in a recirculation flow path comprising an exhaust manifold (320), exhaust baffles between the exhaust manifold (320) and the turbine (314), a turbine housing, exhaust baffles between the turbine (314) and the wastegate (306), exhaust baffles between the wastegate (306) and the exhaust manifold (320), and exhaust baffles between the turbine (314) and the catalyst heater (206).Heat from the recirculated air, which is heated by the catalyst heater (206), is transferred to the exhaust manifold (320), the exhaust walls between the exhaust manifold (320) and the turbine (314), the turbine housing, the exhaust walls between the turbine (314) and the wastegate (306), the exhaust walls between the wastegate (306) and the exhaust manifold (320), and the exhaust walls between the turbine (314) and the catalyst heater (206). A seventh control signal is output to a compressor bypass valve actuator (214) to open a compressor bypass valve (308) in response to the trigger signal. The invention also relates to a system (100) for reducing cold-start emissions.

A controller (40) for an internal combustion engine (10) provided with a turbocharger (20) having a turbine (202) provided in an exhaust path (15), a compressor (201) provided in an intake path (11) and rotating integrally with the turbine (202), an exhaust bypass path (30) allowing the upstream and downstream sides of the turbine (202) to communicate, a wastegate valve (31) adjusting the flow rate of exhaust gas flowing through the exhaust bypass path (30), and an electrovalve actuator (34) changing an actuating position of the wastegate valve (31), the controller (40) for the internal combustion engine (10) comprising: a driving condition detection unit (400) that detects the actuating position of the wastegate valve (31) and a true supercharging pressure, which is an actual value of a pressure of intake air compressed by the compressor (201); a supercharging state determination unit (402) that determines whether a supercharging driving state exists in which the actual supercharging pressure is higher than atmospheric pressure or is expected to become higher than atmospheric pressure, or a non-supercharging driving state exists in which the actual supercharging pressure is less than or equal to atmospheric pressure or is expected to become less than or equal to atmospheric pressure; a target opening degree calculation unit (403) that calculates a target opening degree of the wastegate valve (31); a true opening degree calculation unit (404) that calculates a true opening degree of the wastegate valve (31) based on the operating position of the wastegate valve (31); an operation amount calculation unit (405) that calculates a basic operation amount (DT1) to bring the actual opening degree close to the target opening degree; in the case of determining that a supercharging driving state exists, calculates an operation amount determined by upper-limiting a magnitude of the basic operation amount (DT1) by a preset first limit value (L1) as a final operation amount (DT2); and in the case of determining that a non-supercharging driving state exists, calculates an operation amount determined by upper-limiting the magnitude of the basic operation amount by a second limit value, which is preset to a smaller value than the first limit value, as the final operation amount; and an actuator drive unit (406) that performs drive control of the electric valve actuator (34) based on the final operation amount.

An engine control system, an engine control method, and an engine control program. The engine control system according to the present disclosure is provided with an oil temperature sensor and a wastegate valve control section. The oil temperature sensor detects the temperature of engine oil. The wastegate valve control section controls the opening and closing of a wastegate valve (WGV) based on the temperature of engine oil detected by the oil temperature sensor. More specifically, in the case where the temperature of engine oil detected by the oil temperature sensor is below a predetermined threshold value, the wastegate valve control section controls in such a manner that the wastegate valve (WGV) is opened.

A turbine comprising a wastegate chamber (28); a turbine housing (12) defining a turbine inlet (14), the turbine housing (12) comprising: a wastegate inlet passage (30) defining a flow path between the turbine inlet (14) and the wastegate chamber (28), the wastegate inlet passage (30) comprising a turbine port (38) proximal to the turbine inlet (14) and a non-circular valve port (36) proximal to the wastegate chamber (28), and a raised rim (52) surrounding the non-circular valve port (36) and conforming to the shape of the non-circular valve port (36), the raised rim (52) comprising a first sealing surface;and a valve element (42) comprising a second sealing surface (50), the valve element (42) being movable between a closed position in which the second sealing surface (50) forms a seal with the first sealing surface (54) to prevent fluid flow along the flow path, and an open position in which the second sealing surface (50) is spaced from the first sealing surface (54) to allow fluid flow along the flow path;

A method for controlling a wastegate valve of a turbocharger and the turbocharger of a vehicle are disclosed. The method includes (a) receiving a closed position request; (b) moving an actuator toward a previously stored closed position until a predetermined actuator position is reached, the actuator being operatively connected to the wastegate valve for actuating the wastegate valve; (c) receiving an actual value indicative of force exerted by the actuator; and (d) comparing the actual value to an expected value indicative of force exerted by the actuator; in response to the actual value being less than the expected value, (e) moving the actuator away from an open position by a predetermined amount; (f) replacing the previously stored closed position with a position of the actuator following step (e); and (g) repeating steps (d) to (f) until the actual value is greater than the expected value.

Methods and systems are provided for a turbocharger. In one example, a method includes adjusting one or more of a wastegate position and a position of vanes with operation of a turbocharger to reach a desired turbocharger speed via a controller. The method further includes adjusting engine operating parameters to reach the desired turbocharger speed.

To provide a vehicle which can simplify a control by a control device.SOLUTION: A vehicle according to the present invention includes: an internal combustion engine; a motor; a turbo charger; a waste gate valve; an intake passage; and an exhaust passage. The motor is a power source for driving the vehicle. The internal combustion engine includes an ignition plug for igniting the mixed gas of an air and fuel, and is a power source for generating electric power for driving the motor. The turbine rotates by the exhaust gas. The compressor compresses the air of the intake passage by rotating along with the turbine. The waste gate valve is connected to a first part positioned on an upstream side from the turbine in the exhaust passage, and a second part positioned on a downstream side from the turbine in the exhaust passage. In the intake passage, no valve is provided from the compressor to the internal combustion engine.SELECTED DRAWING: Figure 1

A turbocharger control method and apparatus, a device, and a readable storage medium. The method comprises: acquiring an operating condition corresponding to a vehicle (200); determining a surge line corresponding to a turbocharger (210), the surge line being used for representing a gas flow oscillation phenomenon of gas along the axial direction of a compressor; and when the operating condition and the surge line satisfy a preset relationship, adjusting a first opening angle of a wastegate valve, or adjusting a second opening angle corresponding to a vehicle accelerator pedal (220).

To early activate a catalytic converter in an engine with a turbocharger.SOLUTION: A control device 10 for an engine with a turbocharger includes: an engine 1; an exhaust passage 4 in which exhaust gas from the engine flows; a turbocharger 3 having a turbine wheel 35 rotated by a flow of exhaust gas in the exhaust passage; and a catalytic converter 42 located downstream of the turbocharger. The turbocharger includes: a waste gate valve 38 that fully opens a bypass passage 37 while the engine is performing a warming-up operation of the catalytic converter; and a resistance application mechanism (lock mechanism 7) for applying resistance to rotation of the turbine wheel.SELECTED DRAWING: Figure 4

Procedure comprising: Adjusting a wastegate actuator (150) coupled to a wastegate valve (206) in an engine outlet to control an engine boost level of an engine (10), the adjustment being based on a force provided by a preload (210), wherein a boost limiter actuation force (550) is calculated based on a pressure differential across the boost limiter, the exhaust gas flow, the closing force provided by the preload (210) and / or the angle of the boost limiter valve (206), and the boost limiter actuation force (550) is used as input to an inverse boost limiter model that maps a desired boost limiter pressure or a desired boost limiter valve position to a boost limiter duty cycle for a given boost limiter actuation force (550), wherein the duty cycle signal is generated by the control unit and sent to the boost pressure limiter actuator (150) to adjust the boost pressure limiter actuation force (550).

The present invention relates to a system for controlling a wastegate of a turbocharger of an internal combustion engine, the system comprising: a lever plate adapted to communicate with the wastegate of the turbocharger for controlling the wastegate; a linking arm adapted communicate with an actuator of the system and adapted to releasably connect to the lever plate via a joint defined by a portion of the lever plate and a portion of the linking arm; wherein the joint is dimensioned to connect the linking arm and the lever plate in a first orientation of the linking arm with respect to the lever plate and to disconnect the linking arm and the lever plate in a second orientation of the linking arm with respect to the lever plate.

A double wastegate valve arrangement having improved durability and reduced overall loading in the system, with two wastegate valves movable along a valve longitudinal axis, wherein each of the two wastegate valves has a rotationally symmetrically designed projecting upper side portion configured around the valve longitudinal axis, a valve arm connected to an actuating shaft, and an intermediate plate which is loosely arranged between the valve arm and the wastegate valves, wherein the intermediate plate is pivotable about the valve arm in a direction perpendicularly with respect to the valve longitudinal axis and is supported by rotationally symmetrically designed projecting lower side portions of the intermediate plate on the rotationally symmetrically designed projecting upper side portions of the two wastegate valves.

Systems and methods are provided for mitigating cold start emissions via rotation of a turbocharger turbine. A trigger signal is received from a trigger signal source. A first control signal is issued to a wastegate actuator to open the wastegate in response to the trigger signal. A second control signal is issued to the turbine shaft actuator to rotate a turbine of the turbocharger. Rotation of the turbine causes recirculation air to flow in a recirculation flow path that includes an exhaust manifold, the turbine, an exhaust wall system, and a wastegate. The exhaust wall system includes a turbine housing of the turbine, an exhaust wall disposed between the turbine and the wastegate, and an exhaust wall disposed between the turbine and the catalyst brick. At least a portion of the recirculation flow path is adjacent to one side of the catalyst brick. Heat is transferred from the recirculated air to the exhaust wall system and to the catalyst bricks via one side of the catalyst.

The invention belongs to the field of engines, and provides an engine supercharging system for adjusting air inlet pressure and a vehicle. The system includes a dual flow passage turbocharger, an intake manifold, a first pressure sensor, a second pressure sensor, and a controller. The double-flow-channel turbocharger comprises a first exhaust channel, a second exhaust channel, a first deflation valve and a second deflation valve, the first exhaust channel is communicated with an exhaust port of the first air cylinder set, and the second exhaust channel is communicated with an exhaust port of the second air cylinder set. The first deflation valve and the second deflation valve are respectively arranged at exhaust ports of the first cylinder group and the second cylinder group; the first pressure sensor and the second pressure sensor are arranged at the ends, away from the throttle valve and close to the throttle valve, of the intake manifold correspondingly. The controller is used for controlling the opening degree of the first deflation valve and the second deflation valve so as to adjust the air inlet pressure of the first air cylinder set and the second air cylinder set. According to the scheme, the problem that air intake is not uniform when the end-arranged air intake engine is in an idling state or in a low load state is solved.

An embodiment of the present application discloses an exhaust gas gate control method, device, vehicle, and computer-readable storage medium. The exhaust gas gate control method includes: obtaining the opening degree of the exhaust gas gate relative to the exhaust gas gate seat; when the opening degree is less than a preset threshold value, performing open-loop control on the exhaust gas gate until the exhaust gas gate is closed. The exhaust gas gate control method disclosed in the present application can, when the opening degree of the exhaust gas gate relative to the exhaust gas gate seat is less than or equal to the preset threshold value, achieve the closing of the exhaust gas gate through open-loop control, avoiding the problem that the exhaust gas gate cannot be successfully closed due to the offset of the exhaust gas gate seat.