Transmission control method, computer storage medium, transmission controller and vehicle

Abstract

The invention discloses a transmission control method, a computer storage medium, a transmission controller and a vehicle, and the transmission control method comprises the following steps: in a vehicle starting stage, obtaining the self weight of the vehicle and the road gradient, and determining a required starting gear according to the self weight of the vehicle and the road gradient; and controlling the transmission to shift according to the required starting gear. According to the transmission control method, the starting gear can be intelligently selected according to the vehicle starting requirement, so that the vehicle starting requirement is met, manual selection of a driver is not needed, the trouble of manual operation of the driver is reduced, development of a new gear by an electronic controller is omitted, and the vehicle cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a transmission control method, a computer storage medium, a transmission controller and a vehicle. Background Art

[0002] When the vehicle starts, the transmission will fix a starting gear. If the vehicle is climbing a slope or is fully loaded, the vehicle may not be able to start in the current starting gear.

[0003] In the related art, as the scene switches, the driver needs to manually switch the starting gear to meet the starting requirements, and in order to meet the climbing scene, an electronic shifter is also required to develop gears, which brings trouble to the driver's operation and increases the cost of the vehicle. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide a transmission control method, which can intelligently select a starting gear according to the vehicle starting requirements, thereby meeting the vehicle starting requirements without the need for manual selection by the driver, reducing the trouble of manual operation by the driver, and eliminating the need for the electronic controller to develop a new gear, thereby reducing vehicle costs.

[0005] A second objective of the present invention is to provide a computer storage medium.

[0006] A third objective of the present invention is to provide a transmission controller.

[0007] A fourth object of the present invention is to provide a vehicle.

[0008] In order to solve the above problems, a first embodiment of the present invention proposes a transmission control method, including: obtaining the vehicle's own weight and road slope during the vehicle's starting phase; determining the required starting gear according to the vehicle's own weight and road slope; and controlling the transmission shifting according to the required starting gear.

[0009] According to the transmission control method of the embodiment of the present invention, the gear required for the vehicle to start in the current scenario is determined by the vehicle's own weight and the road slope during the vehicle's starting phase, and the transmission shifting is controlled according to the required starting gear, so that the starting gear is intelligently selected according to the vehicle's starting requirements, thereby meeting the vehicle's starting requirements without the need for manual selection by the driver, reducing the trouble of the driver's manual operation and reducing the vehicle cost.

[0010] In some embodiments, the required starting gear is determined based on the vehicle's own weight and the road slope, including: obtaining a starting gear calibration relationship table, the starting gear calibration relationship table being a correspondence table between the vehicle's own weight, the road slope and the starting gear; and querying the starting gear calibration relationship table based on the vehicle's own weight and the road slope to determine the required starting gear.

[0011] In some embodiments, the vehicle is determined to be in the starting stage when the following conditions are met: receiving an ignition switch on signal; receiving a power-on signal of the vehicle; determining that the brake pedal is in a depressed state; and determining that the electronic shifter is in a forward gear or a reverse gear.

[0012] In some embodiments, after controlling the transmission to shift according to the required starting gear, the method further includes: in the event of a failure in starting of the vehicle, controlling the transmission to downshift based on the required starting gear.

[0013] In some embodiments, the vehicle starting failure is determined when the following conditions are met: after the transmission shift is controlled according to the required starting gear, it is detected that the brake pedal is restored from a depressed state to an undepressed state and the opening of the accelerator pedal reaches a maximum value, and the vehicle maintains a parking state.

[0014] In some embodiments, the method further includes: when the gear position of the transmission is reduced to the lowest gear position and the vehicle still fails to start, sending an automatic start failure prompt message to an instrument panel of the vehicle.

[0015] A second aspect of the present invention provides a computer storage medium, wherein the computer program, when executed by a processor, implements the transmission control method described in the above embodiment.

[0016] The third aspect of the present invention proposes a transmission controller, comprising: at least one processor; a memory communicatively connected to at least one of the processors; wherein the memory stores a computer program executable by at least one of the processors, and when at least one of the processors executes the computer program, the transmission control method described in the above embodiment is implemented.

[0017] According to the transmission controller of the embodiment of the present invention, the transmission control method of the above embodiment is executed by the processor, and the starting gear is intelligently selected according to the vehicle starting requirements, thereby meeting the vehicle starting requirements without the need for manual selection by the driver, reducing the trouble of manual operation by the driver, and at the same time eliminating the need for the electronic controller to develop new gears, thereby reducing vehicle costs.

[0018] A fourth aspect of the present invention provides a vehicle, comprising: a transmission; and a transmission controller as described in the above embodiment, wherein the transmission controller is connected to the transmission and is used to control the transmission to shift gears.

[0019] According to the vehicle of the embodiment of the present invention, by adopting the transmission controller of the above embodiment, the starting gear is intelligently selected according to the vehicle starting requirements, thereby meeting the vehicle starting requirements without the need for manual selection by the driver, reducing the trouble of manual operation by the driver, and at the same time eliminating the need for the electronic controller to develop new gears, thereby reducing vehicle costs.

[0020] In some embodiments, the vehicle further includes: an instrument, the instrument is communicatively connected to the transmission controller, and the instrument is used to display the gear position of the transmission.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 is a flow chart of a transmission control method according to an embodiment of the present invention; Figure 2 is a flow chart of a transmission control method according to another embodiment of the present invention; Figure 3 is a structural block diagram of a transmission controller according to an embodiment of the present invention; Figure 4 is a structural block diagram of a vehicle according to an embodiment of the present invention; Figure 5 is a schematic diagram of a vehicle according to one embodiment of the present invention.

[0023] Reference numerals: Vehicle 100; Transmission controller 10; transmission 20; instrument panel 30; Processor 1; Memory 2. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention are described in detail below.

[0025] The existing transmission starting gear is a fixed gear. For example, the default second gear starts. The vehicle cannot start when it is fully loaded and needs to climb a hill. To meet the climbing requirements, the electronic shifter needs to develop a low-speed lock gear C gear. After pressing the C gear, the transmission can be forced to switch to the first gear for starting.

[0026] In order to solve the above problems, a first aspect of the embodiment of the present invention proposes a transmission control method, which can intelligently select a starting gear according to the vehicle starting requirements, thereby meeting the vehicle starting requirements without the need for manual selection by the driver, reducing the trouble of manual operation by the driver, and at the same time, the electronic shifter can be eliminated to develop a new gear, thereby reducing vehicle costs.

[0027] Reference below Figure 1 A transmission control method according to an embodiment of the present invention is described. The transmission control method at least includes steps S1 to S3.

[0028] Step S1, when the vehicle starts, obtain the vehicle's own weight and the road slope.

[0029] Specifically, after determining that the vehicle is in the starting stage, the vehicle's own weight and road slope can be detected through the sensors installed in the vehicle, and sent to the transmission controller through the vehicle controller.

[0030] Step S2, determining the required starting gear according to the vehicle's own weight and the road slope.

[0031] Specifically, the transmission controller calculates the vehicle's own weight and the road slope to determine the gear that can meet the vehicle's starting requirements under the current environment.

[0032] Step S3, controlling the transmission to shift gears according to the required starting gear.

[0033] Specifically, after the transmission controller determines the required starting gear, the transmission can be controlled to shift gears according to the required starting gear without the driver having to manually switch gears, thereby realizing intelligent selection of the starting gear according to the vehicle starting requirements to meet the vehicle starting requirements.

[0034] According to the transmission control method of the embodiment of the present invention, the gear required for the vehicle to start in the current scenario is determined by the vehicle's own weight and the road slope during the vehicle's starting phase, and the transmission shifting is controlled according to the required starting gear, so that the starting gear is intelligently selected according to the vehicle's starting requirements to meet the vehicle's starting needs, without the need for manual selection by the driver, reducing the trouble of manual operation by the driver, and at the same time, the electronic shifter can be eliminated to develop new gears, thereby reducing vehicle costs.

[0035] In some embodiments, the required starting gear is determined based on the vehicle's own weight and the road slope, including obtaining a starting gear calibration relationship table, which is a correspondence table between the vehicle's own weight, the road slope and the starting gear; and querying the starting gear calibration relationship table based on the vehicle's own weight and the road slope to determine the required starting gear.

[0036] Specifically, after the transmission controller obtains the starting gear calibration relationship table, it can query the gear required for the vehicle to start normally under the current starting condition according to the vehicle's own weight and the road slope, thereby determining the required starting gear. Depending on the type and type of the transmission, the corresponding starting gear calibration relationship table can be pre-set, and no specific restrictions are made here.

[0037] It should be noted that the starting gear position calibration relationship table can be adjusted according to actual conditions during use to improve the accuracy of the starting gear position calibration relationship table.

[0038] For example, referring to Table 1, Table 1 is a starting gear position calibration relationship table of a 6-speed transmission according to an embodiment of the present invention, wherein a positive slope value indicates that the vehicle is in an uphill starting condition, and a negative slope value indicates that the vehicle is in a downhill starting condition.

[0039] Table 1 slope / % ＜-6 -6 -4 -2 0 2 4 6 8 10 ＞10 No load 4 4 3 3 3 3 3 2 2 2 2 Half load 4 4 4 3 3 3 3 2 2 2 2 Fully loaded 4 4 4 3 2 2 2 1 1 1 1 For example, the vehicle's own weight is obtained as fully loaded, and the vehicle slope value is 4%. By querying Table 1, it can be determined that the required starting gear is 2nd gear. At this time, the transmission gear is 2nd gear to ensure that the vehicle can start normally.

[0040] In some embodiments, the vehicle is determined to be in the starting stage when the following conditions are met: receiving an ignition switch on signal; receiving a vehicle power-on signal; determining that the brake pedal is in a depressed state; and determining that the electronic shifter is in a forward gear or a reverse gear. In other words, when all of the above conditions are met, it can be known that the vehicle is in the starting stage, and thus, a logical judgment is made based on the conditions to achieve the judgment of the vehicle starting stage.

[0041] In some embodiments, after controlling the transmission to shift gears according to the required starting gear, the method further includes controlling the transmission to downshift based on the required starting gear when the vehicle fails to start.

[0042] Specifically, if the vehicle fails to start when using the required starting gear, the transmission is controlled to downshift based on the required gear, and the torque output is increased by downshifting, which improves the traction of the vehicle and helps to overcome the situation of starting failure. For example, the vehicle weight is fully loaded, and the vehicle slope value is 4%. By querying Table 1, it can be determined that the required starting gear is 2nd gear. After the vehicle fails to start, the gear can be downgraded to 1st gear.

[0043] In some embodiments, vehicle start failure is determined when the following conditions are met: after the transmission shift is controlled according to the required starting gear, it is detected that the brake pedal returns to the unpressed state from the depressed state and the opening of the accelerator pedal reaches the maximum value, and the vehicle maintains the parking state.

[0044] Specifically, after controlling the transmission to shift gears according to the required starting gear, the driver starts to start the vehicle by first releasing the brake pedal and then pressing the accelerator pedal to start the vehicle. By increasing the opening of the accelerator pedal, the motor torque can be increased, thereby increasing the vehicle's starting traction. If the opening of the accelerator pedal has reached the maximum value, the motor torque has reached the peak torque at this time, and the vehicle still cannot start, the brake pedal should be pressed in time to put the vehicle in a parking state to avoid danger. Therefore, when it is detected that the brake pedal is restored to an unpressed state from a pressed state and the opening of the accelerator pedal reaches the maximum value, and the vehicle maintains a parked state, it can be determined that the vehicle has failed to start.

[0045] For example, the vehicle's own weight is fully loaded and the vehicle's slope value is 4%. By querying Table 1, it can be determined that the required starting gear is 2nd gear. If the driver releases the brake pedal and presses the accelerator pedal until the accelerator pedal opening reaches the maximum, the vehicle still cannot start. The driver presses the brake pedal and holds it for 1 second. At this time, the vehicle fails to start and the transmission downgrades the gear to 1st gear.

[0046] In some embodiments, the method further includes sending an automatic start failure prompt message to an instrument panel of the vehicle when the gear of the transmission is downgraded to the lowest gear and the vehicle still fails to start.

[0047] Specifically, if the transmission gear is reduced to the lowest gear and the vehicle still fails to start, the vehicle cannot complete the start by itself. An automatic start failure prompt message is sent to the vehicle's instrument to prompt the driver that external rescue is required.

[0048] Reference below Figure 2 The transmission control method according to the embodiment of the present invention is described by way of example, and the specific steps are as follows.

[0049] Step S4, start.

[0050] Step S5, receiving an ignition switch on signal; receiving a vehicle power-on signal.

[0051] Step S6, determining that the brake pedal is in a depressed state; determining that the electronic shifter is in a forward gear or a reverse gear, and determining that the vehicle is in a starting stage.

[0052] Step S7: The transmission controller determines the required starting gear according to the vehicle's own weight and the road slope.

[0053] Step S8: The transmission controller controls the transmission shifting according to the required starting gear.

[0054] Step S9, the vehicle is ready to start.

[0055] Step S10, whether the vehicle fails to start, if so, execute step S11; if not, execute step S13.

[0056] Step S11, whether the transmission gear is the lowest gear, if so, execute step S13; if not, execute step S12.

[0057] In step S12, the transmission controller controls the transmission to downshift.

[0058] Step S13, end.

[0059] A second aspect of the present invention provides a computer storage medium, and when a computer program is executed by a processor, the transmission control method of the above embodiment is implemented.

[0060] A third aspect of the present invention provides a transmission controller 10, referring to Figure 3 As shown, the transmission controller 10 includes at least one processor 1 and a memory 2 communicatively connected to the at least one processor 1 .

[0061] The memory 2 stores a computer program that can be executed by at least one processor 1 , and the transmission control method of the above embodiment is implemented when the at least one processor 1 executes the computer program.

[0062] According to the transmission controller 10 of the embodiment of the present invention, the transmission control method of the above embodiment is executed by the processor 1, and the starting gear is intelligently selected according to the vehicle starting demand, so as to meet the vehicle starting, without the need for manual selection by the driver, reducing the trouble of manual operation by the driver, and at the same time eliminating the need for the electronic controller to develop a new gear, thereby reducing vehicle costs.

[0063] A fourth aspect of the present invention provides a vehicle 100, referring to Figure 4 As shown, the vehicle 100 includes a transmission 20 and a transmission controller 10 , wherein the transmission controller 10 is connected to the transmission 20 for controlling the transmission 20 to shift gears.

[0064] According to the vehicle of the embodiment of the present invention, by adopting the transmission controller of the above embodiment, the starting gear is intelligently selected according to the vehicle starting requirements, thereby meeting the vehicle starting requirements without the need for manual selection by the driver, reducing the trouble of manual operation by the driver, and at the same time eliminating the need for the electronic controller to develop new gears, thereby reducing vehicle costs.

[0065] In some embodiments, reference Figure 4 As shown, vehicle 100 also includes a meter 30 .

[0066] The meter 30 is connected to the transmission controller 10 for communication, and the meter 30 is used to display the gear position of the transmission 20 .

[0067] Specifically, after the transmission shifts gears, the current gear position will be displayed on the vehicle instrument, and the driver can view the current transmission gear position through the instrument.

[0068] Exemplary, reference Figure 5 As shown, Figure 5 It is a schematic diagram of a vehicle according to an embodiment of the present invention, wherein the vehicle controller is communicatively connected with an accelerator pedal, a brake pedal, an instrument, an electronic shifter, a transmission controller 10 and a motor controller, the motor controller is electrically connected with a power battery and an electric motor, the transmission 20 is mechanically connected with the electric motor and a drive axle, and the drive axle is mechanically connected with the wheels.

[0069] Among them, the instrument is connected to the transmission through the vehicle controller. After the transmission controller 10 controls the transmission 20 to complete the gear shift, it will send a gear signal to the vehicle controller, and the gear signal will be sent to the instrument 30 through the vehicle controller, so that the instrument 30 can display the transmission gear.

[0070] In the description of this specification, any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code including one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present invention belong.

[0071] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or otherwise processing in a suitable manner if necessary, and then stored in a computer memory.

[0072] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0073] A person skilled in the art may understand that all or part of the steps in the above-mentioned embodiment method may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0074] In addition, each functional unit in each embodiment of the present invention may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0075] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

[0076] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0077] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A transmission control method, characterized in that: include: At the vehicle starting stage, obtain the vehicle's own weight and road slope; Determine the required starting gear according to the vehicle's weight and road slope; The transmission is controlled to shift gears according to the required starting gear.

2. The transmission control method according to claim 1, characterized in that: Determine the required starting gear according to the vehicle's weight and road slope, including: Obtaining a starting gear position calibration relationship table, wherein the starting gear position calibration relationship table is a corresponding relationship table between vehicle weight, road slope and starting gear position; The starting gear calibration relationship table is queried according to the vehicle's own weight and the road slope to determine the required starting gear.

3. The transmission control method according to claim 1 or 2, characterized in that: The vehicle is determined to be in the starting stage when the following conditions are met: Receiving an ignition switch-on signal; receiving a power-on signal of the vehicle; Make sure the brake pedal is depressed; Make sure the electronic shifter is in forward or reverse gear.

4. The transmission control method according to claim 3, characterized in that: After controlling the transmission to shift according to the required starting gear, the method further includes: In the event that the vehicle fails to start, the transmission is controlled to downshift based on the required starting gear.

5. The transmission control method according to claim 4, characterized in that: The vehicle is determined to have failed to start when the following conditions are met: After the transmission is controlled to shift according to the required starting gear, it is detected that the brake pedal is restored from a depressed state to a non-depressed state and the opening of the accelerator pedal reaches a maximum value, and the vehicle maintains a parking state.

6. The transmission control method according to claim 4, characterized in that: The method further comprises: When the gear position of the transmission drops to the lowest gear position and the vehicle still fails to start, an automatic start failure prompt message is sent to an instrument panel of the vehicle.

7. A computer storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the transmission control method according to any one of claims 1 to 6 is implemented.

8. A transmission controller, characterized in that: include: at least one processor; a memory communicatively coupled to at least one of the processors; Wherein, the memory stores a computer program that can be executed by at least one of the processors, and when at least one of the processors executes the computer program, the transmission control method according to any one of claims 1 to 6 is implemented.

9. A vehicle, characterized in that: include: transmission; The transmission controller of claim 7 is connected to the transmission and is used to control the transmission to shift gears.

10. The vehicle according to claim 9, characterized in that Also includes: An instrument is communicatively connected with the transmission controller, and the instrument is used to display the gear position of the transmission.

Images