Transmission shift control method, device and vehicle
A control method and technology of a control device, which are applied in the direction of transmission control, elements with teeth, belts/chains/gears, etc., can solve the problems of inability to guarantee the driving safety of vehicles, mis-hanging, loss of error-proofing protection functions, etc. Achieve the effect of improving service life, avoiding false hanging, ensuring reliability and safety
Active Publication Date: 2020-07-28
GREAT WALL MOTOR CO LTD
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Problems solved by technology
However, protection measures are only added to the shift lever that directly interfaces with the driver, that is, the basic error-proof protection function is realized by adding a mechanical / electrical control locking device to the gear seat, but after pressing the unlocker, the gear position is still It can be switched at will, and once the mechanical / electrical control locking device fails, the anti-error protection function will be lost, so there is still the risk of wrong locking, and the safety of vehicle driving cannot be guaranteed
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[0032] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0033] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0034] figure 2 It is a flowchart of a shift control method of a transmission according to an embodiment of the present invention.
[0035] like figure 2 As shown, the shift control method of a transmission according to an embodiment of the present invention includes the following steps:
[0036] S201. Detect the gear selected by the driver, and detect the current driving direction of the vehicle and the current speed of the vehicle.
[0037] It can be understood that, in the embodiment of the present invention, the control method of the embodiment of the present invention first collects the control signal, including: collecting the driver's shift demand signal (equivalent to detect...
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The invention provides a gear shifting control method and a device of a transmission and a vehicle. The control method comprises the following steps of detecting a selected gear, and detecting a current driving direction of the vehicle and current vehicle speed; judging whether the selected gear is consistent with the current driving direction or not, and if not, judging whether the current vehicle speed is larger than a false gear engagement protection speed threshold valve or not; and controlling the transmission to operate in a first protection mode if the current vehicle speed is less than or equal to the false gear engagement protection speed threshold valve, and controlling the transmission to operate in a second protection mode if the current vehicle speed is larger than the false gear engagement protection speed threshold valve. According to the method, the risk of the false gear engagement by a driver is effectively avoided, the false gear engagement protection function is achieved, the service life of the transmission is prolonged, and the driving reliability and safety of the vehicle are guaranteed.
Description
technical field [0001] The invention relates to the technical field of automobiles, in particular to a gear shift control method and device of a transmission and a vehicle. Background technique [0002] At present, the functional attributes of dual-clutch automatic transmissions for vehicles can be mainly summarized into four attributes: P-R-N-D, that is, the four functional states of parking-reverse gear-neutral gear-forward. The sensor—TCU (Transmission Control Unit, transmission control unit) transmits the driver's intention to realize the normal switching of the state. However, in unexpected / abnormal situations, such as the driver's misoperation (the shift lever is mistakenly engaged R-D, or D-R), it is necessary to further judge whether the operation is reasonable. Once there is no protective measure, directly apply the opposite After the driving force is lost, it is easy to cause damage to the transmission, and it will cause great hidden dangers to driving safety, and...
Claims
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IPC IPC(8): F16H61/18F16H61/02
CPCF16H61/0213F16H61/18
Inventor 墨森
Owner GREAT WALL MOTOR CO LTD