38results about How to "Accurate gear shift" patented technology

The invention provides a gear selecting and shifting mechanism for a speed changer and relates to a vehicle part. The gear selecting and shifting mechanism comprises a drive motor, a first slot opening, a first shifting fork, a second slot opening and a second shifting fork. The drive motor is provided with an output shaft for outputting power, and the output shaft is provided with an increase portion with the diameter being increased; the first slot opening is formed in the increase portion, the first slot opening corresponds to at least one gear position, and the gear positions are configured to surround the outer circumferential face of the increase portion; the first shifting fork is configured to rotate along the first slot opening when the output shaft is rotated so that the movement state of a vehicle can be changed according to the gear positions in the first slot opening; the second slot opening is configured in the increase portion, the second slot opening is provided with at least one gear position, and the gear positions are configured to surround the outer circumferential face of the increase portion, and the second slot opening and the first slot opening are formed in a spaced manner; and the second shifting fork is configured to move along the second slot opening when the output shaft is rotated so that the movement state of the vehicle can be changed according to the gear positions in the second slot opening. By means of the gear selecting and shifting mechanism, problems of gear selecting and gear shifting are solved through one motor.

The present application discloses a control method of a synchronizer, which includes obtaining the self-learning result of the minimum synchronization point of the synchronizer in each gear; the self-learning result represents the test value of the minimum synchronization point of the synchronizer; and then, according to The self-learning result determines the position of the minimum synchronization point of each gear; finally, the synchronizer is controlled to move according to the position of the minimum synchronization point, so as to realize the gear shifting operation. Compared with the traditional shifting method, the method provided in this embodiment can perform self-learning for each gearbox, fully considering the differences caused by the gearbox hardware itself and assembly, therefore, the minimum synchronization point determined based on the self-learning method is more accurate. Accurate, so as to realize the precise control of the synchronizer, reduce the probability of hitting the tooth or hitting the end point, and the shifting is more precise. The application also discloses a control device for a synchronizer.

The invention discloses an inner transmission control mechanism used in a chainless drive vehicle and a chain drive vehicle. According to the inner transmission control mechanism, a clutch mechanism to be controlled is driven to perform disengage or engage action by a power rotating part (such as an input ring, an inner gear, a planet carrier and an output ring) in an inner transmission via a cam or cam-like structure, or a linkage device is driven by the cam or cam-like structure to rotate or translate so as to enable the clutch mechanism to be controlled to perform disengage or engage action, then a rapid switching effect of the control mechanism is completed by rotating the cam or cam-like structure or the linkage device for a certain angle, main transmission power is supplied by the power rotating part instead of a shifting rod for controlling the switching action, the shifting rod can act relatively slightly, the transmission operation can be relatively accurate, the overall control mechanism is relatively simple and easy, the weight can be relatively reduced, the size can be relatively reduced, and furthermore the overall industrial practicability and the practicable performance of the inner transmission can be improved.

The invention relates to a transmission electric control gear-shifting control method and a transmission electric control gear-shifting control device and system. The transmission electric control gear-shifting control method comprises the following steps that a needed target gear is input through a control panel; the target gear is compared with a current gear, when the target gear differs from the current gear, and the difference value of the target gear and the current gear is converted into a control instruction for controlling a transmission; and according to the control instruction, the transmission is operated through a first gear-shifting control stay wire and a second gear-shifting control stay wire, so that the gear of the transmission is converted into the target gear from the current gear. According to the transmission electric control gear-shifting control method, handling convenience of a vehicle adopting the variable speed control method can be greatly improved, and complexity of gear-shifting operation is greatly lowered, so that gear-shifting operation is easier.

The invention provides a target gear calculating method and system. The target gear calculating method comprises the following steps: obtaining the gearshifting parameter of a vehicle in real time, determining the best gearshifting point of the current power of the vehicle based on the gearshifting parameter and the acceleration curve of each gear, and determining the best gearshifting point of the current economy of the vehicle based on the gearshifting parameter and the fuel consumption curve of each gear; and based on the correspondence between the adjusting factor established in advance and a power gearshifting point and the correspondence between the adjusting factor and the economical gearshifting point of fuel, determining the best gearshifting point of the current power and regarding any best gearshifting point of the best gearshifting points of the current economy as the target gearshifting point. Through the target gear calculating method, the driving habit of a driver is obtained to determine the adjusting factor, and the gearshifting parameters under different working conditions are obtained in real time to realize precise gearshifting under different working conditions.

The invention discloses a shift motor, which is characterized by the following: loading Hall inducer 6 with magnetic property on the brush rocker 4 of brush rocker component; casing induction counting gear 7 corresponding to Hall inducer on the motor shaft 8 of rotor component; connecting reducer case 1 of reducer case component and gear shaft 2; casing buffer bulk 14 on the gear shaft 2; casing buffer gear 15, plastic sleeve 16 on the outer and inner sides of buffer bulk 14 separately; opening spring groove 17 with buffer spring 18 on the top of buffer bulk 14; connecting lid gear 19 in the inner part of buffer bulk 14; gearing lid gear 19 and positive gear 12. The invention protects driven part effectively, which is fit for automobile fork and shift sequently and precisely.