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 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 invention discloses an automobile co-rotating arm type double planetary row driving device. A driving machine drives an output shaft, and at least two stages planetary rows are in transmission connection between the driving machine and the output shaft. The driving machine is transmitted to the output shaft through the two stages planetary rows, and when the corresponding two sets of brakes are selected to be closed and released, two speed ratio driving modes, neutral modes and parking modes are correspondingly realized. The automobile co-rotating arm type double planetary row driving device has the advantages of simple transmission structure, unpowered intermittent gear shifting, arbitrary gear shifting, minimal neutral loss, rapid gear shifting response and the like, and is particularly suitable for a driving device with an automatic gear shifting function of an electric vehicle.

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.

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 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.