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

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 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 relates to a duplex electromagnetic clutch. An annular magnet and a high-gear clutch coil are arranged in an annular groove of a clutch framework, a low-gear clutch coil and the high-gear clutch coil are assembled in a back-to-back way, and when the clutch coils fail, low-gear motive power can be output through a one-way clutch or a one-way needle bearing; the electric power is not needed at the high gear, the duplex electromagnetic clutch only needs to be in a power failure state; the friction can be controlled to be regulated and controlled through the current control by a controller, during the gear switching, the electromagnetic suction force of the high-gear clutch coil or low-gear clutch coil in the separated state is reduced, meanwhile, the electromagnetic suction force of the low-gear clutch coil or high-gear clutch coil in the combined state can be gradually enhanced, and the motive power interruption time is reduced, so the impact in the gear shifting process is small, and the gear shifting comfort is high. The duplex electromagnetic clutch has the advantages that the reliable output of the motive power is ensured, the design is ingenious, the structure is simple and compact, the use is convenient, and the duplex electromagnetic clutch is suitable for being popularized and applied in a large scale.

A new type of shift fork for commercial vehicles relates to a transmission accessory for commercial vehicles, in particular to a new type of aluminum alloy shift fork for commercial vehicles. The purpose is to provide a new type of shift fork for commercial vehicles, which can achieve smooth shifting, reduce noise, improve wear resistance, smooth shifting and fast response by improving the structure of the shifting fork. It includes the fork head, the fork body and the fork foot. The fork head is provided with a mounting hole for the fork shaft. One of each, the inner layer of the fork hole pressing bush is a wear-reducing plastic layer, and the friction coefficient is small.

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 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.