Control method and device for improving plateau power of automobile, electronic equipment and medium

Abstract

The embodiment of the invention relates to the technical field of automobile software control, and provides a control method and device for improving plateau power of an automobile, electronic equipment and a medium. The method comprises the steps that the current starting requirement of a driver for operating a target automobile and current altitude information and current road slope information of the target automobile are obtained; according to the current starting demand, the current altitude information and the current road slope information, whether any precondition for triggering the function of improving the plateau power of the automobile is met or not is judged, and a judgment result is obtained; and when the judgment result is that any precondition for triggering the function of improving the plateau power of the automobile is met, the function of improving the plateau power of the automobile is started, and according to the current starting requirement, the rotating speed of a transmission of the target automobile is controlled in multiple gear engaging stages. Therefore, the function of improving the dynamic property of the automobile engine based on identification triggering of the altitude, the gradient, the gear, the driving mode and the like is achieved, the dynamic property of the engine under the plateau is improved, and driving safety is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile software control, and in particular to a control method, device, electronic equipment and medium for improving the plateau power of an automobile. Background Art

[0002] At present, during the development of a certain model, it has been verified in low-altitude areas under extreme conditions such as high temperature and high cold. The vehicle has sufficient power and has obvious advantages over benchmark models equipped with engines of the same displacement. However, during plateau testing, it was found that the power was significantly weakened, and the power was insufficient in scenes such as stopping and starting, getting out of trouble, and climbing. Due to the restrictions of National VI emissions, the power from the engine to the transmission to the drive shaft to the wheels has been significantly weakened, and the vehicle may remain stationary for a long time. Therefore, staying in place for a long time will lead to problems such as excessive oil temperature of the engine and transmission, and a significant increase in the carbon load of the engine post-treatment.

[0003] Limited by the current National VI emission requirements, or the insufficient fuel combustion caused by the thin air in the plateau area, the vehicle's power in the plateau area is insufficient. The existing technology is difficult for the engine to solve it from the perspective of itself. Moreover, based on the current engine technology and the National VI emission requirements, the safety of the vehicle's power and emissions in the plateau area is affected by the existing hybrid technology. There is no special optimization strategy. As a result, the engine torque response is slow and the power is limited in the plateau area, causing the vehicle to escape and unable to climb uphill, and even difficult to start the vehicle, affecting the power of the vehicle. After the vehicle torque is limited, the vehicle travels slowly, especially when encountering an uphill slope, it may not be able to climb uphill due to insufficient power, which will seriously affect the vehicle and driving safety. At this time, the vehicle must be stopped for a long time of parking regeneration to reduce the carbon load to a reasonable range. Summary of the invention

[0004] The present invention provides a control method, device, electronic equipment and medium for improving the plateau power of an automobile, so as to solve the defects in the prior art of slow engine torque response, limited vehicle power and impact on vehicle and driving safety in plateau areas, and realize the function of improving the power of the automobile engine based on identification and triggering of altitude, slope, gear position, driving mode, etc., so as to improve the power of the engine in plateaus and ensure driving safety.

[0005] The present invention provides a control method for improving the plateau power of an automobile, comprising: Acquire the current starting demand of the driver for operating the target vehicle and the current altitude information and current road slope information of the target vehicle, wherein the current starting demand includes the starting gear, the driving mode and whether the target button is activated; Determine whether any precondition for triggering the plateau power enhancement function of the vehicle is met according to the current starting demand, the current altitude information and the current road slope information, and obtain a determination result, wherein the precondition includes the precondition for triggering the plateau power enhancement function of the vehicle under different gears for different road slope information corresponding to different altitude information, the four-wheel drive mode and the target button activation; When the judgment result satisfies any of the prerequisites for triggering the function of improving the high-altitude power of the vehicle, the function of improving the high-altitude power of the vehicle is started, and the speed of the transmission of the target vehicle is controlled in multiple gear shifting stages according to the current starting demand.

[0006] In a possible implementation, the method further includes: Determining whether a current driving mode or a target button of the target vehicle is activated according to the current starting demand, wherein the current driving mode includes a two-wheel drive mode and a four-wheel drive mode; If the target button is activated, the judgment result satisfies the prerequisite for triggering the function of improving the high-altitude power of the vehicle; If the current driving mode is the four-wheel drive mode, the judgment result satisfies the prerequisite for triggering the function of improving the high-altitude power of the vehicle; If the target button is not activated and the current driving mode is the two-wheel drive mode, then query whether there is a target prerequisite corresponding to the current altitude information and the current road slope information among the multiple prerequisites for triggering the enhancement of the vehicle's plateau power function to obtain a judgment result.

[0007] In a possible implementation, the method further includes: Pre-set multiple function enabling conditions to improve the vehicle's high-altitude power function and the basic idle speed based on different altitude information and road slope information; When the judgment result satisfies any one of the prerequisites for triggering the function of improving the high-altitude power of the automobile, and when the multiple function enabling conditions are all met, the transmission speed of the target automobile is controlled based on the basic idle speed in multiple gear shifting stages according to the current starting demand.

[0008] In a possible implementation, the method further includes: According to the current starting demand, obtaining preset speed compensation data corresponding to each gear engaging stage; The speed of the transmission of the target vehicle is controlled based on the preset speed compensation data corresponding to each gear shifting stage and the basic idle speed.

[0009] In a possible implementation, the method further includes: Pre-set multiple function enabling and exiting conditions to improve the vehicle's high-altitude power function; Detecting the corresponding driving state of the target vehicle at each gear-engaging stage; If it is detected that the driving state satisfies any function enabling exit condition, the target vehicle is controlled to exit the function of improving the vehicle's plateau power.

[0010] In a possible implementation, the method further includes: If the current starting condition is a forward gear downhill or a reverse gear uphill, the target button is prohibited from being activated.

[0011] The present invention also provides a control device for improving the plateau power of an automobile, comprising the following modules: An acquisition module, used to acquire the current starting demand of the driver operating the target vehicle and the current altitude information and current road slope information of the target vehicle, wherein the current starting demand includes the starting gear, the driving mode and whether the target button is activated; A judgment module, used for judging whether any precondition for triggering the plateau power enhancement function of the vehicle is met according to the current starting demand, the current altitude information and the current road slope information, and obtaining a judgment result, wherein the precondition includes the precondition for triggering the plateau power enhancement function of the vehicle under different gears according to different road slope information corresponding to different altitude information, the four-wheel drive mode and the target button activation; The control module is used to start the function of improving the plateau power of the vehicle when the judgment result satisfies any prerequisite for triggering the function of improving the plateau power of the vehicle, and control the speed of the transmission of the target vehicle in multiple gear shifting stages according to the current starting demand.

[0012] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, a control method for improving the plateau power of an automobile as described in any one of the above is implemented.

[0013] The present invention also provides a non-transitory computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the control method for improving the plateau power of an automobile as described in any one of the above is implemented.

[0014] The present invention also provides a computer program product, comprising a computer program, which, when executed by a processor, implements any of the control methods for improving the plateau power of an automobile as described above.

[0015] The control method, device, electronic device and medium for improving the plateau power of an automobile provided by the present invention obtain the current starting demand of the driver operating the target automobile and the current altitude information and current road slope information of the target automobile, wherein the current starting demand includes the starting gear, driving mode and whether the target button is activated; according to the current starting demand, the current altitude information and the current road slope information, it is judged whether any precondition for triggering the plateau power function of the automobile is met, and a judgment result is obtained, wherein the precondition includes the precondition for triggering the plateau power function of the automobile under different gears by different road slope information corresponding to different altitude information, the four-wheel drive driving mode and the activation of the target button; when the judgment result satisfies any precondition for triggering the plateau power function of the automobile, the plateau power function of the automobile is started, and according to the current starting demand, the transmission of the target automobile is controlled at a plurality of gear stages. Compared with the defects of slow engine torque response, limited vehicle power and affecting vehicle and driving safety in the prior art in plateau areas, this scheme realizes the function of improving the power of the automobile engine based on the recognition and triggering of altitude, slope, gear, driving mode, etc., and improves the power of the engine under the plateau to ensure driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is one of the flow charts of the control method for improving the plateau power of an automobile provided by the present invention.

[0018] Figure 2 This is the second flow chart of the control method for improving the plateau power of an automobile provided by the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of a control device for improving the plateau power of an automobile provided by the present invention.

[0020] Figure 4 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] To facilitate understanding of the embodiments of the present invention, specific embodiments will be further explained below in conjunction with the accompanying drawings. The embodiments do not constitute a limitation on the embodiments of the present invention.

[0023] Figure 1 This is one of the flow charts of the control method for improving the plateau power of an automobile provided by the present invention. Figure 1 As shown, the method includes the following: S11, obtaining the current starting demand of the driver for operating the target vehicle and the current altitude information and current road slope information of the target vehicle.

[0024] In an embodiment of the present invention, the idle speed control of the vehicle is implemented based on the telematics control unit (TCU) software. The current starting demand may include the starting speed: how fast the driver wants the vehicle to start. The smoothness of the start: whether the driver needs a smooth start. The response time of the start: how fast the driver wants the vehicle to react when starting. The safety of the start: the driver's safety requirements for the start, such as avoiding the danger caused by sudden start.

[0025] The current altitude information is the altitude of the current geographical location of the target vehicle. Since the air is thin in high altitude areas, it may affect the efficiency of the engine. The altitude change may affect the operation of the brake system. The handling performance of the vehicle may be different at different altitudes.

[0026] The current road slope information is the inclination angle of the road the target vehicle is currently traveling on. More power is needed when going uphill, and speed needs to be controlled when going downhill. When driving on a steep slope, the stability and handling of the vehicle will be affected. On roads with different slopes, the braking and acceleration methods need to be adjusted accordingly.

[0027] Therefore, it is necessary to obtain the driver's current starting demand for operating the target vehicle and the current altitude information and current road slope information of the target vehicle. This information may be obtained through technical means such as vehicle-mounted sensors, GPS positioning systems, and road condition monitoring equipment.

[0028] S12: judging whether any prerequisite for triggering the plateau power enhancement function of the vehicle is met according to the current starting demand, the current altitude information and the current road slope information, and obtaining a judgment result.

[0029] In the embodiment of the present invention, multiple preconditions for triggering the plateau power enhancement function of the vehicle are preset. The multiple preconditions for triggering the plateau power enhancement function of the vehicle include but are not limited to the preconditions for triggering the plateau power enhancement function of the vehicle under different gears with different road slope information corresponding to different altitude information, four-wheel drive mode and target button activation.

[0030] For example, the road slope triggering requirements in 1.D or M gear are different based on the slope triggered at different altitudes. The higher the altitude, the worse the dynamic performance, and the smaller the slope triggering the function. See Table 1 for details: Table 1: Slope trigger conditions at different altitudes in D or M gear

[0031] When in D gear, when the slope of the vehicle at different altitudes is greater than the percentage in the above table, the prerequisite for improving the vehicle's plateau power function (improving the engine idle function) is met.

[0032] 2. The road slope triggering requirements in R gear are different based on the slopes triggered at different altitudes. The higher the altitude, the worse the dynamic performance, the greater the slope for function triggering, and the easier it is to trigger. See Table 2 for details: Table 2: Slope trigger conditions at different altitudes for R gear

[0033] Due to the influence of different transmission ratios, the absolute value of the trigger slope in R gear is smaller than that in D gear. When the slope of the vehicle at different altitudes in R gear is less than the percentage in the above table, the prerequisite for improving the engine idle function is established.

[0034] 3. The road slope triggering requirement for N gear and other non-R and D gears is that if the slope is greater than the slopes at different altitudes in Table 1, or less than the slopes at different altitudes in R gear in Table 2, the advance strategy of increasing the idle speed will be triggered.

[0035] 4. Set the activation conditions for the four-wheel drive mode function. Generally, drivers will turn on the four-wheel drive mode when getting out of trouble on unpaved roads to realize the strong power brought by the four-wheel drive. Therefore, set the activation of the four-wheel drive mode as a prerequisite strategy for triggering the function of increasing the engine idle speed.

[0036] 5. In order to meet the needs of all power configurations of this model, there are four-wheel drive and two-wheel drive configurations for power. In order to meet the needs of two-wheel drive models to trigger the idle speed increase function to improve power, a Sport button (target button) is set as the driver's need to improve the power of the whole vehicle. This button trigger function can also be used in four-wheel drive models. And in order to ensure that in the current driving mode, the enabling conditions of the Sport mode are prohibited in the case of D gear downhill (the vehicle slope is less than 0) and R gear uphill (the vehicle slope is greater than 0). The specific trigger slopes of the D gear or R gear at different altitudes are set according to the power requirements of the vehicle model. The specific format is shown in Table 3:

[0037] Table 3 If any of the above conditions 1-5 are met, the function of improving the vehicle's plateau power will be triggered. In the TCU software where the conditions are met, SlopAndGearOK=1.

[0038] Furthermore, the current driving mode of the target vehicle and whether the target button is activated are determined based on the current starting demand; if the target button is activated, the judgment result is that the prerequisite for triggering the function of improving the vehicle's plateau power is met; if the target button is not activated, it is queried whether there are target prerequisites corresponding to the current driving mode and the current altitude information and the current road slope information among the multiple prerequisites for triggering the function of improving the vehicle's plateau power to obtain a judgment result.

[0039] S13. When the judgment result satisfies any of the prerequisites for triggering the function of improving the high-altitude power of the vehicle, the function of improving the high-altitude power of the vehicle is started, and the speed of the transmission of the target vehicle is controlled in multiple gear shifting stages according to the current starting demand.

[0040] In the embodiment of the present invention, a plurality of function enabling conditions for improving the plateau power function of the automobile and a basic idle speed set based on different altitude information and road slope information are preset.

[0041] Specifically, multiple function enabling conditions include: 1. First, set the function trigger flag flg_IdleReqAltEnable. In the platform software, determine whether this function is enabled according to the requirements of different projects or functions.

[0042] 2. The exit conditions for increasing the engine idle speed are not met.

[0043] 3. The current vehicle speed condition is 0, and the vehicle is in a static state ready to start, meeting the conditions for preparing to escape from trouble and start on a slope.

[0044] 4. The altitude is greater than 3000m. This value is verified based on the actual vehicle of the project. Only when the altitude is greater than 3000m will it affect the power of the vehicle. Therefore, the altitude starting point condition here is 3000m.

[0045] 5. The current transmission gear is in neutral. When the conditions are met, the neutral gear will begin to trigger the function of increasing the idle speed. If the gears start to engage after ND (neutral to drive gear), the load of the whole vehicle on the engine will be greater, and the power of the engine will be less sufficient. Therefore, the gear triggering condition is that the neutral gear will begin to be triggered when other conditions are met.

[0046] 6. The prerequisite for triggering the vehicle's plateau power function is to establish SlopAndGearOK=1, as introduced above.

[0047] 7. The current transmission is not in the self-learning process or has not yet learned, so it is forbidden to trigger this function. Because the transmission has certain requirements on the engine speed when performing oil filling and clutch KP self-learning, the engine must be in the normal idle speed range, rather than the high speed after triggering this function.

[0048] When all conditions in 1-7 are met, the function of improving the vehicle's plateau power enables flg_Idle2Work=1.

[0049] The basic idle speed is: the basic idle speed set based on different altitudes and slopes, as shown in Table 4: Table 4

[0050] Among them, the slope of the horizontal axis is positive in R gear.

[0051] Furthermore, when the judgment result satisfies the prerequisite for triggering the function of improving the high-altitude power of the vehicle, and when multiple function enabling conditions are met, the transmission speed of the target vehicle is controlled based on the basic idle speed in multiple gear shifting stages according to the current starting demand.

[0052] Specifically, the control of increasing the engine idle speed in multiple gear shifting stages includes: P1 stage idle speed control: The P1 stage is mainly for the shift lever currently in N gear or P gear, and the driver has not yet operated the shift lever to shift gears. Increasing the speed in the P1 stage is to prepare for shifting to the driving gear D or R. It is necessary to increase the speed to a certain extent based on different gears, altitudes, and slopes to prepare for the rapid response of the engine speed in the next stage. Because the engine speed response is relatively slow in plateau areas, the high engine speed in the P1 stage is used to prepare for the rapid response to the target speed in the next stage, ensuring that the engine speed can respond to the target speed issued by the TCU in time in the P2 stage. When the shift lever is currently in N and the transmission is in neutral, the TCU sends the target speed requirement for the engine in the P1 stage. At this time, because the transmission is in neutral, the vehicle power chain is disconnected, and the engine load is small. In order to ensure that the driver has the need to shift gears and start, because the clutch inside the transmission begins to engage, the vehicle load is gradually loaded to the engine end, resulting in insufficient engine power, and even a significant reduction in the engine speed. Therefore, the speed reserve in the P1 stage is prepared for the engine power increase when starting.

[0053] If there is no P1 stage, when the driver switches to D gear or R gear in the P2 stage, the engine load gradually increases as the clutch of the transmission gradually engages, resulting in insufficient engine power on the plateau, affecting the vehicle's power performance in scenarios such as climbing or getting out of trouble.

[0054] Setting the target idle speed value for the P1 stage: Add compensation for the P1 stage on the basis of the basic idle speed, and set the speed compensation for the P1 stage according to the requirements of different gears, altitudes, slopes, and vehicle models.

[0055] The starting speed of the first control cycle in the P1 phase is the maximum of the target idle speed value of the previous cycle and the current engine speed value. From the second cycle onwards, the target idle speed value of the previous cycle is the idle speed value before filtering. The filter is set to ng_AltP1IdleRate.

[0056] When the driver starts to shift the gear and start to drive, the gear signal received by the TCU from the shift lever is processed internally to the driving gear D or R, and the TCU idle speed increase prerequisite in 1 is met SlopAndGearOK=1. Then the P1 stage is exited, indicating that the vehicle is ready to start driving according to the driver's operation, and it is necessary to immediately enter the P2 stage to control the gear shift from N to D or R gear, and the clutch is engaged.

[0057] P2 stage idle speed control: The P2 stage is mainly for idle speed control after the driver operates the shift lever to shift gears, when the clutch inside the transmission starts to engage in ND or NR. After the driver shifts into the driving gear, the transmission load will increase due to the gradual engagement of the clutch of the transmission. If the high idle speed of the P1 stage is continued, the engine speed will drop rapidly due to insufficient power in the plateau area, resulting in the engine power not being able to respond in time. Therefore, in the P2 stage, it is necessary to compensate for the speed on the basis of P1 to increase the demand for engine speed and torque. When the driver shifts into gear and enters the P2 stage, the TCU will further compensate and increase the target speed based on the current altitude, slope, and gear position on the basis of the P1 stage, and then send it to the engine, further preventing the engine speed from dropping during the starting phase, and further improving the engine power, to ensure that the vehicle can start quickly in plateau areas.

[0058] Setting the target idle speed value for the P2 stage: Add compensation for the P2 stage on the basis of the basic idle speed, and set the speed compensation for the P2 stage according to the requirements of different gears, altitudes, slopes and vehicle models.

[0059] The speed before filtering in the P2 stage is the target speed requested in the previous cycle, and the filtering is set to ng_AltP2IdleRate. The specific filtering value is set according to the specific vehicle model and the power response of the engine. In this stage, if the clutch C1 in the transmission has completed the exchange from torque to speed, it means that the clutch of the current transmission has completed the ND / R gear shift, and the clutch in the transmission has been fully engaged. It can be considered that the transmission is in a hard-linked state, and the vehicle load has been fully transferred to the engine. At this time, the engine's power has reached its limit according to the performance of the vehicle. Even if the speed is increased by 1000rpm, it is difficult for the engine to improve. Therefore, after the speed advance in the P1 stage, the power premise is guaranteed for the P2 stage during the gradual increase of the engine load, and the engine is prevented from losing too much power under the premise of speed compensation in the P2 stage. Increasing the idle speed control also exits the P2 stage and enters the next stage.

[0060] P3 stage idle speed control: The P3 stage mainly controls the engine speed control strategy when the actual gear of the transmission is in the driving gear D or R. In order to further improve the high-altitude power of the engine, the engine is kept at least at the target speed of the P3 stage in this stage, further ensuring that the engine power will not be further lost due to insufficient capacity, and at least the target speed of P3 can be maintained.

[0061] Target idle value setting for the P3 stage: Add compensation for the P3 stage on the basis of the basic idle speed, and set the speed compensation for the P3 stage according to the requirements of different gears, altitudes, slopes and vehicle models.

[0062] The speed before filtering in the P3 stage is the target speed requested in the previous cycle, and the filter is set to ng_AltP3IdleRate. The specific filter value is set according to the specific vehicle model and the power response of the engine. In this stage, it is the last stage of the idle speed increase in the idle speed increase function. If the driver has not stepped on the accelerator during this stage, or the shift lever position received from the shifter or the target gear of the TCU has changed to the non-driving gear D gear or R gear due to a fault, indicating that the driver has no intention to start or the intention to start is cancelled, then the idle speed increase condition is exited in time to avoid risks such as too long idle time and too fast ATF oil temperature rise. After the P3 stage ends, it directly enters the idle exit control and enters the P4 stage.

[0063] P4 stage idle speed control: The P4 stage is the exit stage of the idle speed control, which mainly controls the idle speed to drop to the current engine speed according to a certain slope during the idle speed control process and sends the target speed to the engine for execution. There are two ways to increase the engine idle speed function and exit to the P4 stage according to the settings of the present invention. One is according to the normal control process: after the idle speed control is enabled, the speed is controlled and sent to the engine according to the P1, P2, and P3 stages, and finally enters the P4 stage according to the exit setting of the P3 stage and begins to gradually reduce the speed to the current engine speed. Another way is that if any of the multiple function enable exit conditions that are pre-set to enhance the high-altitude power function of the car is met, the speed request will also be reduced to the current engine speed value after entering P4 according to the exit process.

[0064] The target idle speed value setting of the P4 stage: the minimum value of the current actual engine speed and the minimum target speed n_AltP4IdleTgt of the P4 stage is taken as the target speed of the P4 stage. In the P4 stage, the target idle speed of the previous cycle is the initial value, and the control speed is gradually withdrawn to the current engine speed according to a certain slope ng_AltP4IdleRate. If the target idle speed in the function of the present invention is less than the actual engine speed, according to the control principle of the engine, the speed request lower than the current actual engine speed will not be responded. Therefore, the target speed n_AltP4IdleTgt of the P4 stage is generally set to be less than the minimum idle speed value of the engine.

[0065] It should be noted that the above TBDs are all pending values, which can be determined based on actual experiments. In the embodiment of the present invention, it is also necessary to pre-set multiple function enable exit conditions for improving the plateau power function of the vehicle; detect the corresponding driving state of the target vehicle in each gear shifting stage; determine whether any function enable exit condition is met based on the driving state; if it is detected that the driving state meets any function enable exit condition, then exit the function of improving the plateau power of the vehicle. Figure 2 shown.

[0066] Multiple function enable exit conditions include: 1. First, in harsh driving conditions in plateau areas, such as high throttle and high power torque output conditions such as getting out of trouble or climbing, the temperature of the automatic transmission fluid (ATF), clutch temperature, and torque converter of the transmission may rise rapidly. If not protected in time, it may trigger the torque limit and oil temperature alarm faults, causing the vehicle to be affected by the limit problem for a long time. Therefore, in order to protect the transmission, when the throttle is detected to rise rapidly and the alarm and torque limit temperature is about to be reached, the engine speed is increased and the high power output is timely exited to protect the transmission and the engine. Therefore, the ATF throttle protection temperature and torque converter protection temperature strategy are set. When the ATF oil temperature is greater than t_AltATFTempLmt, or the torque converter temperature is greater than t_AltTCCTempLmt, the TCU idle speed increase request is exited. In order to prevent the enable bit from jumping frequently due to temperature conditions, the temperature hysteresis control is set. When the ATF oil temperature is less than t_AltATFTempLmt-offset, the ATF oil temperature can be monitored again to see if it is greater than t_AltATFTempLmt, to prevent the idle speed function from being triggered back and forth when the ATF oil jumps back and forth near t_AltATFTempLmt. The torque converter temperature monitoring is set in the same way.

[0067] 2. Based on the vehicle speed exit condition settings for different gears, when the vehicle starts to run normally, it indicates that the torque output of the powertrain can meet the needs of the vehicle, so the idle speed increase can be normally exited. With the current setting, when the shift lever is in the D gear and the vehicle speed is greater than v_AltVehSpd_D, the exit condition is met. When the shift lever is in the R gear and the vehicle speed is less than v_AltVehSpd_R (negative value), the exit condition is met.

[0068] 3. When the driver operates the shift lever to change gears, when switching from D to R, or from R to D, the conditions such as the slope in 1 are not met, resulting in flg_Idle2Work≠1, and the enabling exit condition is met. When the driver operates the shift lever to switch from D / R to N or N to D / R, flg_Idle2Work≠1 is caused as above, and the enabling condition will also be exited. However, when the shifter switches from N to P or P to N, according to the current setting in 1, the enabling exit will not be caused by conditions such as the slope, because N or P gears are considered to be non-driving gears, and it is impossible to determine whether the next driver operation is to drive the vehicle downhill in D gear or to drive the vehicle downhill (reverse) in R gear. Therefore, as long as the conditions in 1 are met and other enabling conditions are met, it cannot be exited, so that the power after the driver shifts gears needs to meet the requirements of vehicle driving.

[0069] When the idle speed is increased, it is recognized that the driver has not stepped on the accelerator for a certain period of time or the gear is not in the driving gear, so as to prevent the engine power from being difficult to control and protect the transmission from exiting the function in time. And in the outermost layer of the entire function, the priority is the highest. If it is recognized that: the fluid temperature is too high; the transmission oil temperature is too high; the driver's gear demand changes and becomes a non-driving gear; the vehicle starting speed has reached a certain value, indicating that the vehicle has started successfully; if any of the above conditions is met, the function of increasing the engine speed will be immediately exited. Further ensure the driving safety of the whole vehicle and the safety of personnel. The transmission oil temperature and the fluid temperature change relatively quickly according to different driving conditions and environments, so hysteresis measures must be set to prevent frequent oil temperature changes from causing frequent entry and exit of the function. This function can only be triggered when the temperature reaches the temperature preset function exit limit and the offset is below.

[0070] The beneficial effects of the embodiments of the present invention also include: The function of improving engine power is triggered based on recognition of altitude, slope, gear, driving mode, etc., and according to the current driver's starting needs, the speed control is divided into P1, P2, P3, and P4 stages in different gear stages of the transmission, and the engine target speed is sent to the engine. The engine responds to the target speed of the TCU to improve the engine's power in the plateau. In the function triggering, the target speeds at different stages are based on different altitudes, the current slope of the vehicle, the current gear D1, D2 or R (the speed ratios in different gears are different, and the power required is also different), and the current driving mode selected by the driver. Taking into account the current power needs, the strategic advantage is that the power improvement is more precise, and the target speed requirements can be changed according to the current working conditions to prevent dangerous problems such as uncontrollable power.

[0071] The driving mode selection based on the driver's requirements for power performance requires the vehicle's power performance to be improved. The vehicle is forced to be triggered when the four-wheel drive is in an altitude higher than a certain value, further enhancing the off-road power performance of the four-wheel drive mode. The driver's needs for high-altitude power performance in the four-wheel drive mode are met, and the vehicle exceeds the same model with the same power.

[0072] In order to meet the functional coverage of the entire vehicle model, both two-wheel drive and four-wheel drive models can be covered, and all configurations of the vehicle model have the function. According to the driver's manual increase in power requirements, the power recognition of the Sport button is added, and the false triggering function of recognizing R gear reverse downhill or D gear forward downhill is added according to different gears at different altitudes and slopes.

[0073] The functional safety strategy triggered by the Sport mode function is set in the Sport mode. The slope strategy of different gears is to prevent the function of increasing idle speed from being accidentally triggered when going downhill in D gear and when going uphill in R gear. If the engine speed and torque are both strong when accidentally triggered, the driver may be unable to control the speed of the vehicle through braking, which may cause safety problems for the vehicle and personnel.

[0074] The control method for improving the plateau power of an automobile provided by the present invention obtains the current starting demand of the driver operating the target automobile and the current altitude information and current road slope information of the target automobile, wherein the current starting demand includes the starting gear, the driving mode and whether the target button is activated; according to the current starting demand, the current altitude information and the current road slope information, it is judged whether any precondition for triggering the plateau power function of the automobile is met, and a judgment result is obtained, wherein the precondition includes the precondition that different road slope information corresponding to different altitude information triggers the plateau power function of the automobile at different gears, the four-wheel drive driving mode and the target button are activated; when the judgment result satisfies any precondition for triggering the plateau power function of the automobile, the plateau power function of the automobile is started, and according to the current starting demand, the speed control of the transmission of the target automobile is performed in multiple gear stages. Compared with the defects of slow engine torque response, limited vehicle power and affecting vehicle and driving safety in the prior art in plateau areas, this method realizes the function of improving the power of the automobile engine based on the recognition and triggering of altitude, slope, gear, driving mode, etc., and improves the power of the engine under the plateau to ensure driving safety.

[0075] The control device for improving the plateau power of an automobile provided by the present invention is described below. The control device for improving the plateau power of an automobile described below and the control method for improving the plateau power of an automobile described above can be referred to each other.

[0076] Figure 3 The structure diagram of the control device for improving the plateau power of an automobile provided by the present invention specifically includes: The acquisition module 301 is used to acquire the current starting demand of the driver operating the target vehicle and the current altitude information and current road slope information of the target vehicle, wherein the current starting demand includes the starting gear, the driving mode and whether the target button is activated. For detailed description, please refer to the relevant description corresponding to the above method embodiment, which will not be repeated here.

[0077] The judgment module 302 is used to judge whether any precondition for triggering the plateau power function of the vehicle is satisfied according to the current starting demand, the current altitude information and the current road slope information, and obtain a judgment result, wherein the precondition includes the precondition for triggering the plateau power function of the vehicle under different gears with different road slope information corresponding to different altitude information, the four-wheel drive mode and the target button activation. For detailed description, please refer to the relevant description corresponding to the above method embodiment, which will not be repeated here.

[0078] The control module 303 is used to start the function of improving the plateau power of the vehicle when the judgment result satisfies any of the prerequisites for triggering the function of improving the plateau power of the vehicle, and control the speed of the transmission of the target vehicle in multiple gear stages according to the current starting demand. For detailed description, please refer to the relevant description corresponding to the above method embodiment, which will not be repeated here.

[0079] Figure 4 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 4 As shown, the electronic device may include: a processor (processor) 810, a communication interface (Communications Interface) 820, a memory (memory) 830 and a communication bus 840, wherein the processor 810, the communication interface 820, and the memory 830 communicate with each other through the communication bus 840. The processor 810 can call the logic instructions in the memory 830 to execute a control method for improving the plateau power of the car, the method comprising: obtaining the current starting demand of the driver operating the target car and the current altitude information and current road slope information of the target car, wherein the current starting demand includes the starting gear, the driving mode and whether the target button is activated; judging whether any prerequisite for triggering the plateau power improvement function of the car is met according to the current starting demand, the current altitude information and the current road slope information, and obtaining a judgment result, wherein the prerequisite includes the prerequisite for triggering the plateau power improvement function of the car under different gears according to different road slope information corresponding to different altitude information, the four-wheel drive mode and the target button activation; when the judgment result is that any prerequisite for triggering the plateau power improvement function of the car is met, starting the plateau power improvement function of the car, and according to the current starting demand, controlling the speed of the transmission of the target car in multiple gear shifting stages.

[0080] In addition, the logic instructions in the above-mentioned memory 830 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0081] On the other hand, the present invention also provides a computer program product, which includes a computer program, which can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the control method for improving the plateau power of a car provided by the above-mentioned methods, the method including: obtaining the current starting demand of the driver operating the target car and the current altitude information and current road slope information of the target car, wherein the current starting demand includes the starting gear, the driving mode and whether the target button is activated; judging whether any precondition for triggering the plateau power improvement function of the car is met according to the current starting demand, the current altitude information and the current road slope information, and obtaining a judgment result, wherein the precondition includes the precondition for triggering the plateau power improvement function of the car under different gears with different road slope information corresponding to different altitude information, the four-wheel drive driving mode and the activation of the target button; when the judgment result is that any precondition for triggering the plateau power improvement function of the car is met, the plateau power improvement function of the car is started, and according to the current starting demand, the speed of the transmission of the target car is controlled in multiple gear stages.

[0082] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the control method for improving the plateau power of a car provided by the above-mentioned methods, the method comprising: obtaining the current starting demand of a driver operating a target car and the current altitude information and current road slope information of the target car, wherein the current starting demand includes the starting gear, the driving mode and whether the target button is activated; judging whether any prerequisite for triggering the plateau power improvement function of the car is met according to the current starting demand, the current altitude information and the current road slope information, and obtaining a judgment result, wherein the prerequisite includes the prerequisite for triggering the plateau power improvement function of the car under different gears with different road slope information corresponding to different altitude information, the four-wheel drive mode and the activation of the target button; when the judgment result is that any prerequisite for triggering the plateau power improvement function of the car is met, the plateau power improvement function of the car is started, and according to the current starting demand, the speed of the transmission of the target car is controlled in multiple gear shifting stages.

[0083] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0084] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control method for improving the plateau power of an automobile, characterized in that: include: Acquire the current starting demand of the driver for operating the target vehicle and the current altitude information and current road slope information of the target vehicle, wherein the current starting demand includes the starting gear, the driving mode and whether the target button is activated; Determine whether any precondition for triggering the plateau power enhancement function of the vehicle is met according to the current starting demand, the current altitude information and the current road slope information, and obtain a determination result, wherein the precondition includes the precondition for triggering the plateau power enhancement function of the vehicle under different gears for different road slope information corresponding to different altitude information, the four-wheel drive mode and the target button activation; When the judgment result satisfies any of the prerequisites for triggering the function of improving the high-altitude power of the vehicle, the function of improving the high-altitude power of the vehicle is started, and the speed of the transmission of the target vehicle is controlled in multiple gear shifting stages according to the current starting demand.

2. The method according to claim 1, characterized in that The determining, based on the current starting requirement, the current altitude information, and the current road slope information, whether any prerequisite for triggering the plateau power enhancement function of the vehicle is met, and obtaining a determination result includes: Determining whether a current driving mode or a target button of the target vehicle is activated according to the current starting demand, wherein the current driving mode includes a two-wheel drive mode and a four-wheel drive mode; If the target button is activated, the judgment result satisfies the prerequisite for triggering the function of improving the high-altitude power of the vehicle; If the current driving mode is the four-wheel drive mode, the judgment result satisfies the prerequisite for triggering the function of improving the high-altitude power of the vehicle; If the target button is not activated and the current driving mode is the two-wheel drive mode, then query whether there is a target prerequisite corresponding to the current altitude information and the current road slope information among the multiple prerequisites for triggering the enhancement of the vehicle's plateau power function to obtain a judgment result.

3. The method according to claim 2, characterized in that When the judgment result satisfies any of the prerequisites for triggering the function of improving the plateau power of the vehicle, the function of improving the plateau power of the vehicle is started, and the speed of the transmission of the target vehicle is controlled in multiple gear shifting stages according to the current starting demand, including: Pre-set multiple function enabling conditions to improve the vehicle's high-altitude power function and the basic idle speed based on different altitude information and road slope information; When the judgment result satisfies any one of the prerequisites for triggering the function of improving the high-altitude power of the automobile, and when the multiple function enabling conditions are all met, the transmission speed of the target automobile is controlled based on the basic idle speed in multiple gear shifting stages according to the current starting demand.

4. The method according to claim 3, characterized in that The method of controlling the speed of the transmission of the target vehicle based on the basic idle speed in multiple gear shifting stages according to the current starting demand includes: According to the current starting demand, obtaining preset speed compensation data corresponding to each gear engaging stage; The speed of the transmission of the target vehicle is controlled based on the preset speed compensation data corresponding to each gear-engaging stage and the basic idle speed.

5. The method according to claim 4, characterized in that The method further comprises: Pre-set multiple function enabling and exiting conditions to improve the vehicle's high-altitude power function; Detecting the corresponding driving state of the target vehicle at each gear-engaging stage; If it is detected that the driving state satisfies any function enabling exit condition, the target vehicle is controlled to exit the function of improving the vehicle's plateau power.

6. The method according to claim 2, characterized in that The current starting requirement also includes a starting condition, and the method further includes: If the current starting condition is a forward gear downhill or a reverse gear uphill, the target button is prohibited from being activated.

7. A control device for improving the plateau power of an automobile, characterized in that: include: An acquisition module, used to acquire the current starting demand of the driver operating the target vehicle and the current altitude information and current road slope information of the target vehicle, wherein the current starting demand includes the starting gear, the driving mode and whether the target button is activated; A judgment module, used for judging whether any precondition for triggering the plateau power enhancement function of the vehicle is met according to the current starting demand, the current altitude information and the current road slope information, and obtaining a judgment result, wherein the precondition includes the precondition for triggering the plateau power enhancement function of the vehicle under different gears according to different road slope information corresponding to different altitude information, the four-wheel drive mode and the target button activation; The control module is used to start the function of improving the plateau power of the vehicle when the judgment result satisfies any prerequisite for triggering the function of improving the plateau power of the vehicle, and control the speed of the transmission of the target vehicle in multiple gear shifting stages according to the current starting demand.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that: When the processor executes the computer program, the control method for improving the high-altitude power of an automobile as described in any one of claims 1 to 6 is implemented.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the control method for improving the high-altitude power of an automobile as described in any one of claims 1 to 6 is implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the control method for improving the high-altitude power of an automobile as described in any one of claims 1 to 6 is implemented.

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