4957 results about "Variator" patented technology

The invention discloses a hybrid power AMT gear shifting control method and system, and relates to the technical field of vehicle gear shifting. The method comprises the steps that whether a transmission meets gear shifting conditions or not is judged according to driving information; determining a target gear value according to the current vehicle state; the power source output torque is gradually reduced according to the target gear value; gear picking operation is carried out through an actuator; adjusting the rotating speed of the motor according to the rotating speed difference of the actuator; controlling the transmission to engage a gear according to the target gear value; and gradually restoring the power source output torque according to the target torque value. According to the technical scheme, high-precision control over the rotating speed of the motor of the commercial vehicle can be achieved, the gear shifting success rate of the hybrid power AMT system can be effectively increased, and high application value is achieved.

A derailleur hanger includes a first portion and a second portion. The first portion includes a first part and a second part extending from the first part. The second part includes an axle receiving bore configured to receive a hub axle. The second portion is configured to support a derailleur. The first part includes a frame contact surface disposed in a reference plane extending perpendicular to a center axis of the hub axle in an installed state where the derailleur hanger is mounted to the hub axle. The second portion includes a first surface disposed on a first side of the reference plane. A vehicle center plane is positioned at a second side of the reference plane in the installed state. The second part is disposed on the first side in the installed state, and is disposed at least partially farther from the reference plane than the first surface.

A bracket apparatus for mounting a derailleur to a frame of a human-powered vehicle comprises a bracket body and one of a restriction member and a restriction opening. The bracket body includes a frame attachment portion configured to be attached to the frame of the human-powered vehicle and a derailleur attachment portion to which the derailleur is to be attached. The restriction member is configured to be at least partly provided in the restriction opening to restrict a rotation of the bracket body relative to the frame of the human-powered vehicle in a bracket mounting state where the bracket apparatus is mounted to the frame of the human-powered vehicle.

Proposed is a vehicle drive (100) for a vehicle, comprising a wheel (10), a transmission (12) with an input shaft (14) and an output shaft (16), wherein the output shaft (16) is coupled to the wheel (10) in order to drive the wheel (10) at an output speed (n2), a braking device (18), and an electric motor (20), wherein the braking device (18) and the electric motor (20) are coupled to the input shaft (14) or arranged on the input shaft (14), wherein the electric motor (20) is designed to drive the input shaft (14) at an input speed (n1), wherein the braking device (18) is designed to brake the input shaft (14) in order to reduce the input speed (n1), wherein the transmission (12) is designed to translate the input speed (n1) into the output speed (n2).

The invention relates to a drive device (100) for a motor vehicle (105), comprising a machine housing section (300) for accommodating an electric machine (115) and a transmission housing section (305) for accommodating a transmission (130), wherein the machine housing section (300) has a first intake point (310) configured to be fluidically connected to a first intake line (225) of a first pump (200) of a hydraulic system (135) for cooling and / or lubricating thermal consumers, wherein the transmission housing section (305) has a second intake point (400) configured to be fluidically connected to a second intake line (230) of the first pump (200) or a further pump of the hydraulic system (135), wherein a winding head cooling system (320) of the electric machine (115) is fluidically connected to a transmission chamber (335) of the transmission housing section (305),wherein a coolant and / or lubricant contained in the transmission chamber (335) can be sucked off at least indirectly to the first intake point (310) and via the second intake point (400) via at least one bypass (350) in the engine housing section (300). Furthermore, the invention relates to a motor vehicle (105) with such a drive device (100).

An electromechanical actuator is integrated into a blackout or sun-shading device that includes a screen, top and bottom bars, and top and bottom winding shafts. The screen is between the bars. The top bar is connected to the top winding shaft by first cords. The bottom bar is connected to the bottom winding shaft by second cords. The electromechanical actuator includes first and second transmission devices and an electric motor that drives the shafts. The first transmission device connects to the motor and the top winding shaft and includes a first clutch. The second transmission device connects to the electric motor and the bottom winding shaft and includes a second clutch. When the motor is activated with only one clutch engaged, only one winding shaft is rotated. Moreover, when the motor is activated electrically and the clutches are engaged, the winding shafts are rotated by the motor.

A method for controlling an electric two-wheel vehicle that enables a rider to start driving without a sense of discomfort when operating a clutch to perform a start operation. The control method is a method for controlling an electric two-wheel vehicle, the electric two-wheel vehicle including a motor, a clutch, and a stepped transmission, the method including: a disengagement detecting step of detecting a transition from a state in which the clutch is disengaged to a state in which the clutch is engaged; an accelerator operation detecting step of detecting an amount of accelerator operation performed by a rider after the engagement of the clutch; a target motor rotation speed setting step of setting a target motor rotation speed based on the accelerator operation amount; and a motor rotation speed controlling step of controlling a rotation speed of the motor based on the target motor rotation speed.

A hybrid system for drones and other modes of transport. A combustion engine provides range and / or lifting capacity for drones while electric motors / generators provide both control and maneuverability. One or more combustion engines, in conjunction with one or more electric motors / generators form a propulsion system whereby each is connected to and drives its own driving pinion in one or more planetary gear sets, and provide continuously variable transmission for driving propellers or driveshafts. The combustion engine may be connected directly to one of the planetary gear's driving pinions, or can drive one of the planetary gear's driving pinions. If the propellers are only driven by either a combustion engine, or an electric motor / generator, the other engine / motor will be kept at rest by a braking device for a combustion engine or a braking device for an electric motor / generator.

A motorcycle that inhibits damage to a transmission and a clutch. The motorcycle includes: a drive motor; a transmission; a clutch that connects or disconnects power transmission between the transmission and the drive motor; a mechanical oil pump that is driven by the drive motor to supply a coolant to the drive motor and the transmission; and a control portion that drives the drive motor to supply the coolant to the drive motor and the transmission if an accelerator operation is not detected and a neutral state is detected, or if an accelerator operation is not detected and a disconnected state of the clutch is detected.

An 8AT automatic transmission hydraulic system. The system comprising: a first pressure regulating valve (10), a second pressure regulating valve (12), a first switching valve (4), a main oil circuit (33), a first solenoid valve (6), a second solenoid valve (11), a third solenoid valve (23), a fourth solenoid valve (13), a fifth solenoid valve (8), and a sixth solenoid valve (22). The first solenoid valve and the fifth solenoid valve are connected to a forward oil circuit (32); the sixth solenoid valve is connected to the main oil circuit; the second solenoid valve and the fourth solenoid valve are connected to a pressure reducing oil circuit (35); the first solenoid valve, the fifth solenoid valve, the third solenoid valve and the sixth solenoid valve are direct-drive solenoid valves; the second solenoid valve and the fourth solenoid valve are pilot solenoid valves. The direct-drive solenoid valves and the pilot solenoid valves are used to control each clutch of a transmission, simplifying the design of the pressure regulating valve, and reducing space occupied thereby.

A system for destructive braking system for an autonomous truck traveling on a roadway includes an electronic control unit (ECU) configured for controlling a transmission for the autonomous truck. The destructive braking system includes an electronic control unit (ECU) configured to drop a component of the autonomous truck onto the roadway. The system includes a processing system communicatively coupled to the ECU, the processing system including at least one processor coupled to a memory. The memory stores executable instructions that, upon execution by the processor, configure the processor to: receive an indication the autonomous truck will unavoidably collide with an object, determine to employ destructive braking, and instruct the ECU to initiate movement of the component of the autonomous truck onto the roadway to reduce momentum of the autonomous truck.

An operating condition design method for reliability verification of a dual-motor system of a P13-configuration electric drive transmission and a reliability testing method for a dual-motor system of a P13-configuration electric drive transmission, which meet the development, usage, and safety requirements of electric drive transmissions while shortening the product development cycle. The design method comprises: on the basis of structural principles and usage modes of P13-configuration electric drive transmissions, and considering also motor verification coverage scenarios and whole-vehicle road scenarios, designing dual-motor system reliability verification operating conditions which use P3 motor operating conditions as the main conditions, complemented by P1 motor operating conditions; and combining product performance design parameters and whole-vehicle control logic to form an initial operating condition test table for the dual-motor system reliability verification operating conditions (S101); and adjusting the running time of each operating condition in the initial operating condition test table, so as to obtain a final required operating condition test table for dual-motor system reliability verification and the number of operating condition cycles for the dual-motor system reliability verification (S102).

A motor vehicle including a drive unit with an electric machine, wherein the electric machine is a directly cooled electric machine, a transmission, a first cooling loop for cooling assemblies of the directly cooled electric machine using a first dielectric coolant which flows directly around respective assemblies of the electric machine, a second cooling loop for cooling the transmission using a second coolant designed as a transmission oil, and a third cooling loop using a third coolant. The first cooling loop and the third cooling loop are coupled via a first heat exchanger, and the second cooling loop and the third cooling loop are coupled via a second heat exchanger.

The invention provides a vehicle control method and system and a vehicle. The vehicle comprises an intercooling loop, the intercooling loop comprises a main loop, a bypass branch and a waterway three-way valve, the main loop comprises an intercooler used for reducing the air inlet temperature of an engine, a transmission oil cooler and a second radiator, the waterway three-way valve is provided with an inlet, a first outlet and a second outlet, and the inlet and the first outlet of the waterway three-way valve are connected into the main loop; the second outlet of the waterway three-way valve is connected with one end of the bypass branch, and the second radiator is connected between the other end of the bypass branch and the first outlet of the waterway three-way valve. The method comprises the steps that the actual air inlet temperature of an engine is obtained; and based on the actual air inlet temperature of the engine, the flow of the cooling liquid passing through the second radiator in the intercooling loop is controlled by controlling the waterway three-way valve. The intercooler can be cooled, and the heat dissipation effect of the whole vehicle is improved.

A moving part of the short flexible cylinder active complex parallel radial harmonic transmission is composed of a thin-wall composite short flexible cylinder and two rolling wave generators with roller pins or ball-retainer assemblies. A flexible bearing low-speed moving ring raceway is integrated on one side of the gear, and a full-cylinder-length gear is arranged on the other side of the gear; the two semi-short shafts are fixedly connected to the two ends of a motor rotor respectively, are integrated with flexible bearing high-speed moving ring raceways and are the same in structure size, and a semi-short shaft at one end needs to be coplanar with a semi-long shaft at the other end, so that the two ends of the semi-short shafts generate time-varying radial antisymmetric deformation; the static part is composed of end covers which are fixedly connected to the two ends of the motor stator and provided with rigid gears. A double-convex-arc raceway of a high-speed moving ring of the flexible needle bearing is designed, a convexity needle roller with the middle concave structure dynamically constraining the axial movement amount of a short flexible cylinder and a retainer and various structures facilitating rolling body assembly are used, and a waveform raceway calculation formula of a wave generator for the needle roller is given; therefore, the radial size and the axial size of the active complex radial harmonic transmission can be reduced on the basis of ensuring the transmission precision and the bearing capacity.

Methods and systems for detecting a torque transmission failure in an aircraft power plant are provided. The system comprises a hydrostatic transmission for transmitting torque between a first shaft and a second shaft using hydraulic fluid, an a failure detector including a sensor configured to detect a pressure change in the hydraulic fluid. The failure detector is configured to generate an output indicative of the torque transmission failure in response to the pressure change having crossed a threshold.

The invention relates to the technical field of transmission control, in particular to a mechanical gear shifting mechanism with a multi-gear switching function and a control method thereof.The mechanical gear shifting mechanism comprises a main body frame, a rotary shifting block assembly is arranged on the main body frame, and a shifting fork linkage assembly is arranged on the rotary shifting block assembly; a positioning assembly is arranged in the shifting fork linkage assembly, and a power output assembly is arranged on the shifting fork linkage assembly. The rotary shifting block assembly is arranged, the shifting block body is of an asymmetric multi-curved-surface structure, and a high-gear curved-surface groove, a first neutral-gear curved-surface groove, a low-gear curved-surface groove, a second neutral-gear curved-surface groove, a middle-gear curved-surface groove and a third neutral-gear curved-surface groove form a composite guide groove, so that a user is allowed to complete multi-gear switching in single rotation operation; an efficient and flexible power transmission and guide mechanism is provided for gear shifting operation, the convenience of gear shifting operation is greatly improved, and the gear shifting process is smoother and more natural.

The present invention provides a method for controlling the automatic start of a commercial vehicle AMT, including a control state model and the jump conditions of the control state model. Through the collaborative control of the vehicle control system, the transmission control system, the engine control system and the handle control system, when the vehicle is in the D / R gear position, releasing the foot brake and not stepping on the accelerator, the transmission control system controls the clutch to automatically engage, and the vehicle travels stably at a low speed. When the vehicle encounters other harsh working conditions with large driving resistances such as a large slope, in order to avoid the risk of engine stalling, the engagement depth of the clutch is adjusted in real time to ensure the power response and driving smoothness of the vehicle's automatic start condition, and enhance the driver's control performance.

The invention relates to an intelligent control method for an automatic transmission of a commercial vehicle based on a VCU (vehicle control unit) architecture, which comprises the following steps of: based on a rule-based control mode, determining an operation mode of an AMT (automated mechanical transmission) of the vehicle according to an optimal principle according to a vehicle operation condition, a road condition and an intention of a driver, and performing intelligent switching control on economical and dynamic gear shifting rules of the transmission by the VCU, and the economic mode is selected under the condition that the accelerator opening degree is smaller than or equal to a preset threshold value under the light load or the small road slope or the uphill working condition. And selecting a power mode under the conditions of heavy load, relatively large gradient and greater accelerator opening degree than a preset value under the uphill working condition. Intelligent switching control is carried out on economical efficiency and dynamic property gear shifting rules of the transmission, it is guaranteed that an engine works in a proper rotating speed interval, and the climbing dynamic property is improved on the premise that economical efficiency is guaranteed. And meanwhile, the VCU improves the feeling of a driver on the fuel economy and the dynamic property of the vehicle through the multi-stage accelerator Map switching control method.

A hybrid electric vehicle includes a transmission without a reverse gear and a control method thereof. A situation in which a connection between the motor and the engine is stuck is overcome. When a predetermined condition is met, whether or not an engine clutch is in a specific state is determined. A first driving source is disposed on one end of the engine clutch, and a second driving source is disposed on the other end of the engine clutch. When the engine clutch is in the specific state, reverse driving is prevented. A transmission is controlled to be in a neutral position.

A transmission arrangement for a drivetrain of an agricultural towing vehicle includes an input shaft, an output shaft, a transmission device, a transmission unit, and an electric machine. The transmission device includes a mechanical transmission branch and a variable transmission branch with a magnetic-electrical epicyclic transmission stage having an internal rotor, an external stator, and an interposed rotatable magnetic modulation ring being rotationally conjointly connectable to a clutch drive shaft. The transmission unit is arranged downstream in the power flow and includes a first clutch and a second clutch connected to the clutch drive shaft and at least four gear sets for establishing at least four gear ratio stages. The electric machine is coupled to the input shaft and configured to transmit electrical power to the external stator, which is configured to rotate the modulation ring.

A vehicle hinge driving apparatus includes an actuator, a housing connected to the actuator, an output shaft rotatably mounted in the housing, a transmission mechanism configured to transmit a torque from the actuator to the output shaft, and a brake unit mounted on the transmission mechanism. A method for providing a vehicle hinge driving apparatus is also provided.

A transmission includes: a case configured to store oil; a gear power transmission mechanism supported by the case and configured to operate in a state where a part of the gear power transmission mechanism is immersed in the oil stored in the case; a chain power transmission mechanism supported by the case; and a transmission mechanism supported by the case. The case includes a rib configured to cover the chain power transmission mechanism at an upper side of the chain power transmission mechanism in a vertical direction. The rib internally includes an oil passage for supplying oil to the transmission mechanism.

To provide a work vehicle with a hybrid transmission that shifts power from an engine to output to a front traveling unit which can extend forward, while unnecessitating shape change of a transmission case and preventing circulation of lubricant between an electrically-driven transmission chamber and a gearwheel transmission chamber, a front transmission shaft from the gearwheel transmission part.SOLUTION: A work vehicle comprises: an electrically-driven transmission chamber 16; a transmission case 11 which forms a gearwheel transmission chamber 17 positioned at the rear side of the electrically-driven transmission chamber 16 and is to be a partition between the gearwheel transmission chamber 17 and the electrically-driven transmission chamber 16; a front transmission shaft 70 which extends forward from the gearwheel transmission part to perform power transmission to a front traveling device; and a cylindrical member 73 which is arranged in the transmission case 11 to form a power transmission path 74 separated from the electrically-driven transmission chamber 16 passing through the electrically-driven transmission chamber 16 in a cross direction in which the front transmission shaft 70 passes through the power transmission path 74.SELECTED DRAWING: Figure 3

A hybrid transmission system with a multi-speed gearbox. The multi-speed gearbox is configured to rotationally couple a prime mover and an electric machine to different gear ratios during a hybrid drive mode. The multi-speed gearbox includes an electric drive interface gear positioned coaxial to a first primary shaft and a second primary shaft and idly mounted, free to spin, to the second primary shaft and an output shaft that includes an output shaft gear which is fixedly coupled thereto meshes with a gear on a secondary shaft.

The invention relates to the technical field of automobile transmissions, and particularly discloses an AMT clutch fault detection method, system and device and a storage medium, and the method comprises the steps that the current state of a vehicle is monitored in real time, and the current state comprises the vehicle speed, the engine rotating speed and the transmission input shaft rotating speed; when the vehicle state meets the preset clutch fault detection condition, a clutch rapid combination valve is controlled to conduct air inflow so that the clutch can be located at the complete combination position; reading the current engine rotation speed and the transmission input shaft rotation speed; a low-speed separating valve and a high-speed separating valve of the clutch are respectively controlled to gradually separate the clutch; in the clutch separation process, the clutch displacement value, the clutch friction plate temperature value, the engine rotating speed and a transmission input shaft rotating speed signal are monitored in real time, whether the clutch breaks down or not is judged, and the clutch fault point is locked. According to the scheme, different types of faults, fault points and fault levels can be accurately locked, misjudgment is reduced, and the safety and stability of vehicle operation are improved.

The invention relates to the technical field of hybrid power gearboxes, in particular to a series hybrid power gearbox with a longitudinally-arranged engine, which comprises a longitudinally-arranged engine, a generator and a driving motor, the gear clutch transmission system is connected with the three power sources, transmits power of the three power sources and realizes power generation and driving; the gear clutch transmission system comprises a power generation system, a drive motor pure electric drive system, a generator two-gear pure electric drive system, an engine two-gear drive system and a front drive transfer system. On one hand, rear wheel two-gear driving and double-motor pure electric driving with the engine arranged longitudinally can be achieved, on the other hand, four-wheel hybrid driving is achieved through the built-in front-drive transfer shaft, and meanwhile parts such as a hydraulic control wet clutch or a driving motor and a gear thereof, the front-drive transfer shaft and the like are omitted; various hybrid power transmission products with different functions can be designed on the same platform and produced on the same line, and the requirements of different users and vehicle types are met.

A method for controlling a variable supercharger (501) for an engine system (500), comprising: Pressurizing an intake air (510) by a compressor (508) of the variable supercharger (501), Driving the variable supercharger (501) with a gearbox (522), Receiving, at a control unit (530), a desired first condition for the intake air (510) from the engine system (500), Calculating, at the control unit (530), a second state of the intake air (510) from the operating speed of the engine system (500) and from operating conditions of the engine system (500) corresponding to the desired first state, Determining a desired compressor speed (536) corresponding to the desired first state and the second state of the intake air (510) from a compressor map (540), Switching the transmission (522) to drive the compressor (508) to the desired compressor speed (536) to provide the desired first intake air condition (510) to the engine system (500), wherein the first state of the intake air (510) is a boost pressure (132) of the intake air (510) and the second state of the intake air (510) is a mass flow rate of the intake air (510).

A transmission arrangement for a vehicle, the transmission arrangement comprising a first input shaft comprising a first input shaft gear wheel rotationally fixed to the first input shaft, a second input shaft comprising a second input shaft gear wheel rotationally fixed to the second input shaft, a transmission shaft drivingly connectable to a pair of wheels of the vehicle, the transmission shaft comprising a transmission gear wheel rotationally fixed to the transmission shaft, the transmission gear wheel being arranged in meshing engagement with the first input shaft gear wheel, and a countershaft comprising a first countershaft gear wheel arranged in meshing engagement with the transmission gear wheel, and a second countershaft gear wheel arranged in meshing engagement with second input shaft gear wheel, wherein the second input shaft is drivingly connectable to the transmission shaft via the countershaft.