37results about How to "Quick shift response" patented technology

The invention discloses a dual-motor multi-mode composite forerunner plug-in hybrid power system; an engine, an elastic damper, a clutch, a first motor, a first planet row, a second planet row, a third planet row and a second motor are coaxially arranged in order; a first brake connecting plate is connected with the output shaft of the first motor; a second brake connecting plate is connected with the first planet row; a third brake connecting plate is connected with the third planet row; a fourth brake connecting plate is respectively connected with the first, second and third planet rows; a fifth brake connecting plate is connected with the output shaft of the second motor; the third planet row is connected with an output gear set; the output gear set is respectively connected with a left output semiaxis and a right output semiaxis. The dual-motor multi-mode composite forerunner plug-in hybrid power system is more reasonable in configuration, more compact in structure, low in loss, high in reliability, and can realize the following work modes: an engine multi-speed ratio separate drive mode, an engine-motor multi-gradient combined ECVT drive mode, and a multi-speed ratio single motor-driven mode.

A control method of a dual clutch transmission for a hybrid electric vehicle includes: determining, by a transmission controller, whether a vehicle has entered a power-off down-shift state; determining, by the transmission controller, whether a transmission including a first input shaft, a second input shaft, and an output shaft has entered a torque phase, when the first determining step determines that the vehicle has entered the power-off down-shift state; calculating a compensatory torque for compensating for a change in a regenerative braking force according to a change of a gear ratio in accordance with a completion percentage of the torque phase, when it is determined that a transmission has entered the torque phase; and compensating for regenerative torque of a motor by applying the compensatory torque.

The invention provides a variable-speed transmission mechanism of a double-clutch speed changer. The variable-speed transmission mechanism of the double-clutch speed changer is used for solving the problem of vehicle power transmission and comprises a first input shaft, a second input shaft, a first intermediate shaft, a second intermediate shaft and a differential mechanism output assembly. The first input shaft and the second input shaft with a hollow structure are installed in sleeved mode, the first input shaft is an odd-gear and reverse-gear driving gear fixing shaft, the second input shaft is an even-gear driving gear fixing shaft, driven gears at different gears and synchronizers are sleeved on the first intermediate shaft and the second intermediate shaft, and the first intermediate shaft and the second intermediate shaft are respectively connected with the differential mechanism output assembly. The variable-speed transmission mechanism of the double-clutch speed changer is characterized in that a third-gear driven gear and a reverse-gear idle gear are sleeved on the second intermediate shaft and are of a connection tooth structure. The variable-speed transmission mechanism of the double-clutch speed changer is compact in arrangement, smooth in power connection and rapid in gear shifting response and remarkably improves power performance and economic performance of a vehicle.

The invention discloses a hybrid power assembly with multimode compound planets. An engine, an elastic damper, a first motor, a first planetary line, a second planetary line, and a second motor are coaxially and sequentially mounted. An output shaft of the hybrid power assembly is connected to the second planetary line. A first shift brake is connected to the output shaft of the first motor and the first planetary line. A second shift brake is connected to the first planetary line and the second planetary line. A third shift brake is connected to an output shaft of the second planetary line and an output shaft of the second motor. A controller is electrically connected to a storage battery, the engine, the first motor, the first motor, the first shift brake, the second shift brake and the third shift brake. The hybrid power assembly with multimode compound planets has the advantages of being high in transmission efficiency, low in running and production cost, high in reliability, good in load capacity, long in service life and good in cost-performance.

The invention relates to an electric vehicle motive power assembly, which consists of an electric motor unit and a speed changer unit, wherein the motive power of the electric motor unit is transmitted to a first-gear clutch input shaft and a second-gear clutch input shaft of a duplex clutch assembly through a motor shaft and an input shaft, is then transmitted to a first-gear driving gear or a second-gear driving gear through a clutch driving sheet and a clutch driven sheet of the duplex clutch assembly, is next transmitted to a middle shaft gear and a differential mechanism gear through a first-gear driven gear or a second-gear driven gear, and is finally output through a left half shaft gear and a right half shaft gear of an output shaft assembly, and an oil pump assembly lubricates the speed changer unit in a forced way and cools a motor assembly in a forced way. The electric vehicle motive power assembly has the advantages that the automatic gear shifting is realized through controlling the duplex clutch assembly, and the driving motor is enabled to always work in an ideal region, so the motive power performance and the economy of an electric automobile can be improved, the cost performance of the electric automobile is greatly improved, the design is ingenious, the structure is simple and compact, the use is convenient, and the electric vehicle motive power assembly is suitable for being popularized and applied in a large scale.

The invention provides a multi-gear automatic transmission which comprises a first shaft system WS1, a second shaft system WS2, a first fixed shaft gear set TG69, a second fixed shaft gear set TG56, a third fixed shaft gear set TG17, a first planetary gear set PG1, a second planetary gear set PG2, a third planetary gear set PG3 and six gear shift elements including a first brake B1, a second brake B2, a first clutch C1, a second clutch C2, a third clutch C3 and a fourth clutch C4; power is input through the first shaft system WS1, output to a differential mechanism Diff. through the second shaft system and then transmitted to wheels on the two sides through outputs at the output ends of the two sides of the differential mechanism. The first shaft system is parallel to the second shaft system, and the multi-gear automatic transmission is particularly applicable to a preposition front-drive type vehicle; the structure is compact, vehicle gearshift response can be faster, the dynamic property is higher, and the vehicle can have better driving performance and better fuel economy.

The invention provides a nine-stage transmission which comprises planet rows, an input component, an output component, transmission components, brakes and clutches. The input component and the output component are arranged at the two ends and connected with a corresponding input shaft and a corresponding output shaft respectively. The planet rows comprise the planet row PGS1, the planet row PGS2, the planet row PGS3 and the planet row PGS4. The transmission components comprise the transmission component (3), the transmission component (4), the transmission component (5), the transmission component (6) and the transmission component (7). The brakes comprise the brake B1, the brake B2, the brake B3 and the brake B4. The clutches comprise the clutch C1 and the clutch C2. The transmission has the beneficial effects of having multiple gears and being good in fuel economical efficiency, small in size and light.

The invention discloses a same rotating arm dry type four-speed pure electric power system. A motor of the same rotating arm dry type four-speed pure electric power system is connected with an input star mechanism and a middle star mechanism. The input star mechanism, the middle star mechanism and a double-planetary star mechanism are all connected with a rotating arm. The input star mechanism is connected with a II gear shifting plate. The double-planetary star mechanism is connected with a III gear shifting plate and a IV gear shifting plate. The middle star mechanism is connected with a one-way clutch and a I gear shifting plate. The outer ring of the one-way clutch is connected with a box body. The rotating arm is connected with an output transitional gear set. The output transitional gear set is connected with a differential mechanism. The I gear shifting plate is connected with a I gear shifting mechanism in a matched mode. The II gear shifting plate is connected with a II gear shifting mechanism in a matched mode. The III gear shifting plate is connected with a III gear shifting mechanism in a matched mode. The IV gear shifting plate is connected with a IV gear shifting mechanism in a matched mode. According to the same rotating arm dry type four-speed pure electric power system, the low-speed climbing capacity is high, the electric system load impact is small, the limit rotation speed of the motor is low, the operation efficiency is high, the size is small, the maintenance cost is low, multi-gear transmission is achieved, and the transmission performance and the whole machine quality are effectively improved.

The invention provides a shift control device, a shift control method, a gear box and engineering machinery. The shift control device can comprise a rotational speed detection unit which is used for detecting the rotational speed of a plurality of shafts in the gear box in real time; a control unit which is connected to the rotational speed detection unit and notifies an adjustment execution unit to adjust operating pressure of fraction elements in a clutch; and the adjustment execution unit which is connected to the control unit and is used for adjusting the operating pressure of the fraction elements. By adopting the technical scheme of the invention, shift requirements such as rapid shift response, and smooth power transition can be satisfied.

The invention discloses an electric gear selecting and shifting executing mechanism. The mechanism comprises a gear selecting mechanism, a gear engaging mechanism, a self-locking mechanism, an interlocking mechanism, a transmission shaft and a shell; the gear selecting mechanism is arranged at one end of the shell; the gear engaging mechanism is arranged at the other end of the shell; the output end of the gear selecting mechanism is connected with a transmission body; the output end of the gear selecting mechanism is connected with the output end of the gear selecting mechanism through the transmission shaft; the self-locking mechanism is connected with the output end of the gear selecting mechanism and is used for preventing a transmission from undergoing spontaneous out-of-gear; and theinterlocking mechanism is connected with the output end of the gear selecting mechanism and is used for preventing the transmission from being engaged with multiple gears at the same time. Accordingto the electric gear selecting and shifting executing mechanism of the invention, the self-locking mechanism is adopted, so that the locking of a certain gear of the transmission is achieved, and therefore, the automatic gear jumping of the transmission caused by vibration in the running process of a vehicle is prevented; and the interlocking mechanism is adopted, so that the transmission can be prevented from being engaged with multiple gears at the same time, and therefore, damage to the transmission caused by such a condition is effectively avoided. The mechanism is simple in structure andcan assist inn decreasing the fault points of the transmission and improving the reliability of the vehicle.

The invention discloses a gear-shifting air cylinder of a synchronizer. The gear-shifting air cylinder comprises an end cover, a cylinder body, a piston and a piston rod; a first throttling hole and asecond throttling hole are formed in the side wall of the cylinder body; the first throttling hole is close to the closed end of the cylinder body; the second throttling hole is close to the openingend of the cylinder body; a gap I is radially formed between the outer surface of an end cover boss and the inner surface of the cylinder body; a gap II is radially formed between the inner surface ofa cylindrical concave cavity of the end cover boss and the outer surface of a piston boss; and a gap III is radially formed between the outer surface of a cylinder body boss and the inner surface ofa piston cavity. The gear-shifting air cylinder of the synchronizer has the advantages that aiming at a synchronizer gear-shifting mode, the gear-shifting impact and the gear-shifting noise in the gear-shifting process of the synchronizer can be reduced, the service life of the synchronizer can be prolonged, the gear shifting response time is shortened, the gear-shifting response time can be shortened, the gear shifting quality can be improved, and the defects in the prior art can be overcome.

The present invention provides a control method for a dual-clutch transmission of a hybrid electric vehicle, comprising: determining whether the vehicle enters a powerless downshift state through a transmission controller; when the first determining step determines that the vehicle has entered a powerless downshift state , it is determined by the transmission controller whether the transmission including the first input shaft, the second input shaft and the output shaft enters the torque phase; when it is determined that the transmission has entered the torque phase, the calculation is used to compensate the gear ratio based on the completion percentage of the torque phase varying compensation torque for varying regenerative braking force; and, compensating for regenerative torque of the electric motor by applying compensation torque.

The invention discloses a transmission gear selecting and shifting control device driven by single motor. The device comprises a gear selecting and shifting shaft, a driving motor, a planet gear speedreducing device and a limiting and detecting device, wherein the driving motor is connected with the planet gear speed reducing device; the planet gear speed reducing device is connected with the gear selecting and shifting shaft; the limiting and detecting device is arranged on the gear selecting and shifting shaft; the planet gear speed reducing device comprises a gear ring, and a planet gear mechanism and a power locking mechanism arranged on the gear ring; the gear ring is connected with the gear selecting and shifting shaft; the planet gear mechanism is connected with the driving motor and the gear selecting and shifting shaft; and the limiting and detecting device comprises a limiting mechanism, and an all-gear position signal detecting module arranged on the limiting mechanism. Thedevice adopts single-motor structure and the planet gear mechanism to achieve two functions of gear selection and gear shifting through single power inputting and the functions of speed reduction andtorque increment, is compact in overall structure and lower in cost, and can be widely applied to the transmission gear selection and shifting.

The invention provides a gear-shifting control system and method of a hybrid electric vehicle, and belongs to the technical field of vehicles. The gear-shifting control system and method solve the problem that in the gear shifting process of an existing hybrid electric vehicle, running of the vehicle is unstable. The gear-shifting control system of the hybrid electric vehicle comprises a VCU, a TCU, an IPU and a gear shifting sensor, and also comprises a first sensor for collecting input-shaft rotating speed signals, wherein the TCU transmits a flag bit signal to the VCU according to a gear shifting signal, the VCU transmits a torque lowering request to the IPU according to the flag bit signal, and when the torque of a motor is 0 N m, the TCU transmits a gear shifting-down signal; an engine and the motor are connected with a transmission, the motor is connected with an input shaft of the transmission and only can act on the input shaft alone, the TCU transmits a synchronization instruction according to the rotating speed of the input shaft, the synchronization instruction is used for synchronizing the motor and the input shaft and maintaining the 0-N m torque, and when the motor and the input shaft are synchronized, the TCU transmits a motor shifting-up signal to the IPU. According to the gear-shifting control system of the hybrid electric vehicle, the running of the vehicle can be more stable in the gear shifting process, and gear shifting efficiency is higher.

The invention discloses a magnetic control gear shifting hub, and belongs to the technical field of wheel power transmission. The gearbox comprises a motor spindle and a hub steel ring, a gearbox body is formed in a hub cavity, and a clutch and a gear set are arranged in the gearbox body. An electric suction cup is installed on a motor spindle, a magnetic conductive ring and a coil annular groove are arranged on the side wall of the side, adjacent to the pressing disc, of the electric suction cup, and a coil is arranged in the coil annular groove; and a concave cavity is formed in the portion, close to the protruding column, of the motor left cover. The driven friction plate and the driving friction plate are located on the protruding disc and located in the concave cavity. The clutch gear shifting mechanism is installed on the motor in the hub, wherein the electric suction cup is arranged outside the motor shell, the motor is an independent part and does not interfere with each other; therefore, heat generated when the electric suction cup is powered on to work cannot be overlapped in the motor at the same time, a motor heating source is not additionally added, so that the motor is protected, and the electric suction cup is prevented from being burnt out due to overtemperature caused by superposition of heat generated by working of the motor.

The invention discloses an automobile synchronizer device which comprises a gear sleeve, a gear hub, a synchronization ring and a joint gear; the gear hub is sleeved with the gear sleeve; the joint gear is arranged at one end of the gear hub; a groove is formed in the joint gear; the synchronization ring is arranged in the groove; first contact surfaces are arranged between the synchronization ring and the joint gear; the number of the first contact surfaces is at least two; friction layers are arranged on the first contact surfaces; and the friction layers are pasted on the synchronization ring. According to the automobile synchronizer device, the multiple friction layers are arranged between the synchronization ring and the joint gear, so that the friction area is increased, and the gearshifting time is shortened.

A manual-automatic integrated electric vehicle speed change system comprises a speed change device and a shifting fork device, wherein a gear assembly comprises a slow gear, a fast gear and an output gear; a claw disc assembly is arranged between the slow gear and the fast gear and comprises a first claw disc and a second claw disc which are limited in the circumferential direction and slide up and down on a supporting shaft; first claw teeth are arranged at the upper end of the first claw disc, and a slope surface is arranged on the same side of all the first claw teeth; second claw teeth are arranged at the lower end of the second claw disc; and the shifting fork device drives the second claw disc to move up and down and conduct positioning, and positions include that the first claw teeth are all located in a first through hole, the first slope surface intersects with the lower end surface of the first through hole, and the second claw teeth are located in a second through hole. According to the manual-automatic integrated electric vehicle speed change system, the structure is simple and compact, smooth transition and conversion among a slow gear, a reverse gear and a fast gear of an electric vehicle are realized, gear shifting response is faster, the phenomena of tooth hitting and tooth abutting are avoided, different states of vehicle sliding and slope sliding prevention are achieved, and the application range is wider.

The invention discloses an end surface floating disc type automatic four-speed pure electric power assembly. The end surface floating disc type automatic four-speed pure electric power assembly comprises a first planetary row and a second planetary row, wherein the first planetary row is arranged in the second planetary row; the two-speed composite planetary gear transmission device comprises a third planetary row and a fourth planetary row; a first rotating arm of the first planetary row is connected with a third rotating arm of the third planetary row and a second gear ring of the second planetary row; and a third gear ring of the third planetary row is connected with a fourth rotating arm of the fourth planetary row. The output shaft of the motor is connected with an elastic damping connecting disc, the elastic damping connecting disc is connected with the first planetary row, and the output shaft is connected with the third planetary row and the fourth planetary row. A first end surface floating disc type shifter is connected with the first planetary row, a second end surface floating disc type shifter is connected with the second planetary row, a third end surface floating disc type shifter is connected with the third planetary row, and a fourth end surface floating disc type shifter is connected with the fourth planetary row.

The invention provides a multi-gear transmission which comprises planet rows, an input component, an output component, transmission components, brakes and clutches. The input component and the output component are arranged at the two ends and connected with a corresponding input shaft and a corresponding output shaft respectively. The planet rows comprise the planet row PGS1, the planet row PGS2, the planet row PGS3 and the planet row PGS4. The transmission components comprise the transmission component (3), the transmission component (4), the transmission component (5), the transmission component (6) and the transmission component (7). The brakes comprise the brake B1, the brake B2, the brake B3 and the brake B4. The clutches comprise the clutch C1 and the clutch C2. The transmission has the beneficial effects of having multiple gears and being good in fuel economical efficiency, small in size and light.

The invention relates to an electric vehicle motive power assembly, which consists of an electric motor unit and a speed changer unit, wherein the motive power of the electric motor unit is transmitted to a first-gear clutch input shaft and a second-gear clutch input shaft of a duplex clutch assembly through a motor shaft and an input shaft, is then transmitted to a first-gear driving gear or a second-gear driving gear through a clutch driving sheet and a clutch driven sheet of the duplex clutch assembly, is next transmitted to a middle shaft gear and a differential mechanism gear through a first-gear driven gear or a second-gear driven gear, and is finally output through a left half shaft gear and a right half shaft gear of an output shaft assembly, and an oil pump assembly lubricates the speed changer unit in a forced way and cools a motor assembly in a forced way. The electric vehicle motive power assembly has the advantages that the automatic gear shifting is realized through controlling the duplex clutch assembly, and the driving motor is enabled to always work in an ideal region, so the motive power performance and the economy of an electric automobile can be improved, the cost performance of the electric automobile is greatly improved, the design is ingenious, the structure is simple and compact, the use is convenient, and the electric vehicle motive power assembly is suitable for being popularized and applied in a large scale.

The invention discloses a planetary plate gear shifting type automatic four-speed pure electric power assembly which comprises a motor, a front double-speed planetary transmission device, a rear double-speed planetary transmission device, a differential mechanism, a first gear shifter, a second gear shifter, a third gear shifter and a fourth gear shifter. The motor and the front double-speed planetary transmission device are coaxially mounted; the rear double-speed planetary transmission device and the differential mechanism are coaxially mounted; a differential mechanism transmission shaft and an output shaft of the motor are installed in parallel. The first gear shifter and the second gear shifter are connected with the front double-speed planetary transmission device in a matched mode,and the third gear shifter and the fourth gear shifter are connected with the rear double-speed planetary transmission device in a matched mode. Through the actions of the four gear shifters, the assembly realizes four-gear mode, electronic parking and neutral gear mode output. Unpowered intermittent gear shifting, random gear shifting, small neutral gear loss, quick gear shifting response, largespeed ratio difference between gears, small gear shifting energy consumption and low cost are achieved, and higher cost performance is achieved.

The invention discloses a dual-motor multi-mode composite forerunner plug-in hybrid power system; an engine, an elastic damper, a clutch, a first motor, a first planet row, a second planet row, a third planet row and a second motor are coaxially arranged in order; a first brake connecting plate is connected with the output shaft of the first motor; a second brake connecting plate is connected with the first planet row; a third brake connecting plate is connected with the third planet row; a fourth brake connecting plate is respectively connected with the first, second and third planet rows; a fifth brake connecting plate is connected with the output shaft of the second motor; the third planet row is connected with an output gear set; the output gear set is respectively connected with a left output semiaxis and a right output semiaxis. The dual-motor multi-mode composite forerunner plug-in hybrid power system is more reasonable in configuration, more compact in structure, low in loss, high in reliability, and can realize the following work modes: an engine multi-speed ratio separate drive mode, an engine-motor multi-gradient combined ECVT drive mode, and a multi-speed ratio single motor-driven mode.

The invention discloses a mechanical type automatic transmission gear selecting and shifting actuation mechanism for a vehicle. The actuation mechanism controls shifting of gears of a mechanical type automatic transmission. A brushless direct current motor is used as a power source, and a ball screw is used as a transmission device. The rotation of the brushless direct current motor is controlled to drive a nut on the ball screw to move forwards or backwards; the nut is used for realizing gear selecting and shifting by a way that a push-pull rod pushes and pulls a gear selecting and shifting shaft of the transmission; the ball screw is high in transmission efficiency, and the force output by the mechanism and the response speed can be increased. The mechanical type automatic transmission gear selecting and shifting actuation mechanism further comprises a reverse transmission two-directional backstop consisting of an inner ring, an outer ring, an annular shifting fork, a planet wheel, a ball and a spring, so that the actuation mechanism has the functions of preventing the transmission from being off-gear and from getting trip stop.

The invention discloses a double-speed clutch, including a box and an oil level regulator, wherein the box includes sealed side walls and end covers installed at two ends of the side walls, the oil level regulator communicates with the interior of the box, and an input shaft, an output shaft, a basic planetary gear set, a high-gear planetary gear set, a low-gear planetary gear set, a friction pair and a gear shifting actuator. The double-speed clutch can be applied to hybrid power and blade electric vehicles, and the variable speed gear shifting function can be achieved by adopting the gear shifting actuator to control the friction pair to perform brake control on the high-gear planetary gear set or the low-gear planetary gear set. The double-speed clutch has the advantages of being capable of achieving unpowered and continuous shifting, quick in switching response, simple in control system, small in structure volume, high in reliability, capable of achieving multiple speed ratio clutch shifting, small in shifting energy consumption, high in transmission efficiency, tiny in neutral gear loss and low in cost.

A multi-speed automatic transmission, comprising a first shaft system WS1, a second shaft system WS2, a first fixed shaft gear set TG69, a second fixed shaft gear group TG56, a third fixed shaft gear set TG17, a first planetary gear set PG1, the second planetary gear set PG2, the third planetary gear set PG3 and 6 shift elements, namely the first brake B1, the second brake B2, the first clutch C1, the second clutch C2, the third clutch C3, and the fourth clutch C4: Power is input from the first shaft system WS1, output to the differential Diff. through the second shaft system WS2, and then transmitted to the wheels on both sides through the output terminals on both sides of the differential. The first shaft system and the second shaft system are arranged in parallel, which is especially suitable for front-drive vehicles; the compact structure makes the vehicle shift response faster, and the stronger power can make the vehicle have better driving performance and better fuel consumption economy.

The present invention provides a gear shift control device, a gear shift control method, a gearbox, and construction machinery. The gear shift control device may include: a rotational speed detection unit for detecting the rotational speeds of multiple shafts in the gearbox in real time; a control unit connected to the rotational speed The detection unit notifies the adjustment execution unit to adjust the working pressure of the friction elements in the clutch; the adjustment execution unit is connected to the control unit and is used to adjust the working pressure of the friction elements. Through the technical scheme of the invention, the shifting requirements such as fast shifting response and smooth power transfer can be met.

The invention discloses an electronic brake caliper type three-speed multi-mode motor hybrid power system. The electronic brake caliper type three-speed multi-mode motor hybrid power system is characterized in that an engine, an elastic damper, a main clutch, a motor and a three-speed speed change module of the system are sequentially coaxially mounted, the output shaft of the motor is a hollow shaft, the output shaft of the main clutch penetrates the output shaft of the motor to be connected with the three-speed speed change module, and a first brake is connected with the main clutch; the second brake is connected with the output shaft of the motor; a third brake and a fourth brake are respectively connected with the three-speed speed change module; the three-speed speed change module is further connected with a system output shaft; a controller is respectively electrically connected with a storage battery, the engine, the first brake, the second brake, the third brake and the fourth brake. The electronic brake caliper type three-speed multi-mode motor hybrid power system is simple in structure, fast in gear shifting responds, capable of achieving complete electronic linear control, high in reliability, low in gear shifting energy consumption, and capable of achieving various-speed-ratio drive modes which include a single engine mode, a single motor mode and an engine-motor combined mode.