Method and device for improving highland power of automobile, electronic equipment and medium

Abstract

The embodiment of the application relates to the technical field of automobile software control, and provides a control method and device for improving highland power of an automobile, electronic equipment and a medium, the method comprising the following steps: obtaining current starting demand of a driver operating a target automobile, and current altitude information and current road slope information of the target automobile; determining whether any prerequisite condition for triggering a function for improving highland power of the automobile is met according to the current starting demand, the current altitude information and the current road slope information, and obtaining a determination result; when the determination result is that any prerequisite condition for triggering the function for improving highland power of the automobile is met, starting the function for improving highland power of the automobile, and performing speed control on a gearbox of the target automobile according to the current starting demand in multiple gear stages. Therefore, the function for improving power of an engine of the automobile is triggered based on recognition of altitude, slope, gear position, driving mode and the like, power of the engine on a highland is improved, and driving safety is ensured.

Description

TECHNICAL FIELD

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

[0002] Currently, in the development process of a certain vehicle model, the vehicle power is relatively sufficient after verification under extreme conditions such as high temperature and high cold in low-altitude areas, and there is a significant advantage in power compared with a benchmark vehicle model equipped with the same displacement engine. However, when doing plateau tests, it is found that the power is significantly weakened, and the power is insufficient in scenes such as starting, getting out of trouble, and climbing a slope. Due to the limitation of the national sixth emission, the power from the engine to the transmission to the transmission shaft to the wheels is significantly weakened, and the vehicle may be stationary for a long time. Therefore, long-term getting out of trouble in the original place will cause problems such as high engine and transmission oil temperature, and significant increase in engine aftertreatment carbon load.

[0003] Due to the limitation of the current national sixth emission requirements, or the insufficient fuel combustion caused by the thin air in the plateau area, the vehicle power in the plateau area is insufficient. The existing engine is difficult to solve from itself, and based on the current engine technology and the national sixth emission requirements, the vehicle power and emission in the plateau area affect the safety of the vehicle. There is no special optimization strategy in the existing hybrid technology. The engine torque response is slow in the plateau area, the power is limited, the vehicle gets out of trouble and cannot climb a slope, and even the vehicle starts is difficult, which affects the vehicle power. After the vehicle limit torque, the vehicle drives slowly, especially when encountering an uphill, it may not be able to climb the hill due to insufficient power, which seriously affects the vehicle and driving safety. At this time, the vehicle must be stopped for a long time to regenerate to reduce the carbon load to a reasonable range. SUMMARY

[0004] The present application provides a control method and device for improving the power of an automobile on a plateau, an electronic device and a medium, to solve the defects of slow engine torque response, limited vehicle power, and affecting the safety of the vehicle and driving in the plateau area in the prior art. The function of improving the power of the engine of the vehicle is realized based on the identification of altitude, slope, gear, driving mode, etc., to improve the power of the engine on the plateau and ensure driving safety.

[0005] The present application provides a control method for improving the power of an automobile on a plateau, comprising:

[0006] obtaining the current starting demand of the driver operating the target automobile and the current altitude information and the 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;

[0007] determining whether a precondition for triggering the highland power 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 determination result, wherein the precondition includes a precondition for triggering the highland power function of the vehicle in different gears corresponding to different road slope information at different altitudes, a four-wheel drive driving mode and a target button activation;

[0008] when the determination result is that the precondition for triggering the highland power function of the vehicle is met, starting the highland power function of the vehicle, and performing speed control on the transmission of the target vehicle according to the current starting demand in multiple gear engagement stages.

[0009] In one possible implementation, the method further includes:

[0010] determining whether the current driving mode of the target vehicle or the target button 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;

[0011] if the target button is activated, the determination result is that the precondition for triggering the highland power function of the vehicle is met;

[0012] if the current driving mode is the four-wheel drive mode, the determination result is that the precondition for triggering the highland power function of the vehicle is met;

[0013] if the target button is not activated and the current driving mode is the two-wheel drive mode, determining whether a target precondition corresponding to the current altitude information and the current road slope information exists in the multiple preconditions for triggering the highland power function of the vehicle, and obtaining a determination result.

[0014] In one possible implementation, the method further includes:

[0015] previously setting multiple function enabling conditions of the highland power function of the vehicle and a basic idle speed based on different altitude information and road slope information;

[0016] when the determination result is that any one of the preconditions for triggering the highland power function of the vehicle is met, and the multiple function enabling conditions are all met, performing speed control on the transmission of the target vehicle based on the basic idle speed according to the current starting demand in multiple gear engagement stages.

[0017] In one possible implementation, the method further includes:

[0018] obtaining preset speed compensation data corresponding to each gear engagement stage according to the current starting demand;

[0019] The transmission of the target vehicle is controlled in speed based on the preset speed compensation data corresponding to each gear shifting stage and the basic idle speed.

[0020] In one possible implementation, the method further includes:

[0021] pre-setting a plurality of function enabling exit conditions for promoting the high plateau power function of the vehicle;

[0022] detecting the corresponding driving state of the target vehicle in each gear shifting stage;

[0023] if it is detected that the driving state meets any function enabling exit condition, controlling the target vehicle to exit the high plateau power function of the vehicle.

[0024] In one possible implementation, the method further includes:

[0025] if the current starting working condition is downhill in forward gear or uphill in reverse gear, the target button is prohibited from being activated.

[0026] The application also provides a control device for promoting the high plateau power of a vehicle, comprising the following modules:

[0027] an acquisition module, configured to acquire the current starting demand of a driver operating a target vehicle and the current altitude information and the 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;

[0028] a judgment module, configured to judge whether any prerequisite condition for triggering the high plateau power 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 judgment result, wherein the prerequisite condition includes the prerequisite condition for triggering the high plateau power function of the vehicle under different gears for different altitude information corresponding to different road slope information, the four-wheel drive driving mode and the activation of the target button;

[0029] a control module, configured to start the high plateau power function of the vehicle when the judgment result is that any prerequisite condition for triggering the high plateau power function of the vehicle is met, and control the transmission of the target vehicle in speed in a plurality of gear shifting stages according to the current starting demand.

[0030] The application also provides an electronic device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the control method for promoting the high plateau power of a vehicle as described above.

[0031] The application further provides a non-transitory computer-readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the control method for improving highland power of an automobile.

[0032] The application further provides a computer program product, which comprises a computer program, and the computer program is executed by a processor to implement the control method for improving highland power of an automobile.

[0033] The application provides a control method and device for improving highland power of an automobile, an electronic device and a medium. The control method comprises the following steps: obtaining a current starting demand of a driver operating a target automobile, and current altitude information and current road slope information of the target automobile, wherein the current starting demand comprises a starting gear, a driving mode and whether a target button is activated; determining whether a prerequisite condition for triggering a function for improving highland power of the automobile is met according to the current starting demand, the current altitude information and the current road slope information, and obtaining a determination result, wherein the prerequisite condition comprises a prerequisite condition for triggering the function for improving highland power of the automobile under different gears corresponding to different road slope information of different altitude information, a four-wheel drive driving mode and activation of the target button; when the determination result is that the prerequisite condition for triggering the function for improving highland power of the automobile is met, starting the function for improving highland power of the automobile, and performing speed control on a transmission of the target automobile in multiple gear engagement stages according to the current starting demand. Compared with the defects of slow engine torque response, limited vehicle power and influence on vehicle and driving safety in the prior art, the function for improving engine power of the automobile is triggered based on altitude, slope, gear and driving mode, and the engine power on the plateau is improved to ensure driving safety. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0035] Figure 1 is one of the flowcharts of the control method for improving highland power of an automobile provided by the present application.

[0036] Figure 2 is another flowchart of the control method for improving highland power of an automobile provided by the present application.

[0037] Figure 3 is a structural schematic diagram of the control device for improving highland power of an automobile provided by the present application.

[0038] Figure 4 is a structural schematic diagram of an electronic device provided by the present application. DETAILED DESCRIPTION

[0039] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below in conjunction with the accompanying drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0040] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below in conjunction with the accompanying drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0041] Figure 1 is one of flowcharts of a control method for improving highland power of an automobile provided by the present application, as shown in the figure, the method comprises the following steps: Figure 1

[0042] S11, obtaining a current starting demand of a driver operating a target automobile and current altitude information and current road slope information of the target automobile.

[0043] In the embodiments of the present application, the idle speed control of the automobile is realized based on a telematics control unit (TCU) software. The current starting demand can include the starting speed: how fast the driver wants the automobile to start. The starting smoothness: whether the driver needs a smooth start. The starting response time: how fast the driver wants the automobile to react when starting. The starting safety: the safety requirement of the driver when starting, for example, avoiding the danger caused by sudden starting.

[0044] The current altitude information is the altitude of the geographical location where the target automobile is currently located. Since the air is thin in high altitude areas, it may affect the efficiency of the engine, and the change of altitude may affect the work of the brake system. The handling performance of the vehicle may be different at different altitudes.

[0045] The current road slope information is the inclination angle of the road where the target automobile is currently driving. 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. The way of braking and accelerating needs to be adjusted accordingly on different slope roads.

[0046] ​Therefore, it is necessary to obtain the current starting demand of the driver operating the target vehicle and the current altitude information and the current road slope information of the target vehicle, which can be obtained by means of vehicle-mounted sensors, GPS positioning systems, road condition monitoring devices, etc.

[0047] S12, judging whether any of the trigger conditions for improving the highland power 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.

[0048] In the embodiment of the application, a plurality of trigger conditions for improving the highland power function of the vehicle are set in advance. The plurality of trigger conditions for improving the highland power function of the vehicle include but are not limited to trigger conditions for improving the highland power function of the vehicle under different road slope information corresponding to different altitude information in different gears, four-wheel drive driving mode and target button activation.

[0049] For example, 1, the road slope trigger requirement under D or M gear, the slope triggered based on different altitudes is also different, the higher the altitude, the worse the power, and the smaller the slope triggered by the function, see Table 1 for details:

[0050] Table 1: Slope trigger conditions of different altitudes under D or M gear

[0051]

[0052] When the vehicle is in D gear and the slope at different altitudes is greater than the percentage in the above table, the trigger condition for improving the highland power function of the vehicle (improving the engine idle speed function) is met.

[0053] 2, the road slope trigger requirement under R gear, the slope triggered based on different altitudes is also different, the higher the altitude, the worse the power, and the larger the slope triggered by the function, the easier to trigger, see Table 2 for details:

[0054] Table 2: Slope trigger conditions of different altitudes under R gear

[0055]

[0056] Based on the influence of different transmission speed ratios, the absolute value of the trigger slope under R gear is relatively small compared with D gear. When the vehicle is in R gear and the slope at different altitudes is less than the percentage in the above table, the trigger condition for improving the engine idle speed function is met.

[0057] 3, the road slope trigger requirement under N gear and other non-R, D gears, the slope greater than the slope of different altitudes in Table 1 or less than the slope of different altitudes in Table 2 will trigger the idle speed improvement strategy.

[0058] 4. Set the activation conditions for the four-wheel drive driving mode. In general, drivers will turn on the four-wheel drive mode to achieve the strong power brought by four-wheel drive when getting out of trouble on unpaved roads. Therefore, setting the activation of the four-wheel drive driving mode is a prerequisite strategy for increasing the engine idle speed.

[0059] 5. To meet the needs of all powertrain configurations under this model, both four-wheel drive and two-wheel drive options are available. To allow two-wheel drive models to trigger the idle speed boost function to improve power, a Sport button (target button) is provided for drivers to enhance overall vehicle power. This button trigger function is also available on four-wheel drive models. Furthermore, to ensure that Sport mode is disabled in the current driving mode when descending in D gear (overall slope less than 0) and ascending in R gear (overall slope greater than 0), the specific trigger slope for different altitudes in D or R gear is set according to the model's power requirements, as shown in Table 3.

[0060]

[0061] Table 3

[0062] If any of the conditions 1-5 above are met, the vehicle's high-altitude power enhancement function will be triggered. In the TCU software, SlopAndGearOK=1 when the condition is met.

[0063] Furthermore, based on the current starting requirements, determine the target vehicle's current driving mode and whether the target button is activated; if the target button is activated, the result is that the prerequisite for triggering the vehicle's high-altitude power enhancement function is met; if the target button is not activated, query among the multiple prerequisites for triggering the vehicle's high-altitude power enhancement function whether there is a target prerequisite corresponding to the current driving mode, current altitude information, and current road slope information, and obtain the result.

[0064] S13. When the judgment result meets any of the prerequisites for triggering the vehicle's high-altitude power enhancement function, the vehicle's high-altitude power enhancement function is activated, and the transmission speed of the target vehicle is controlled at multiple gear shifting stages according to the current starting requirements.

[0065] In this embodiment of the invention, multiple enabling conditions for enhancing the vehicle's high-altitude power function are preset, along with a base idle speed set based on different altitude and road slope information.

[0066] Specifically, the enabling conditions for multiple functions include:

[0067] 1. First, set the function trigger flag flg_IdleReqAltEnable. In the platform software, determine whether this function is enabled based on the needs of different projects or functions.

[0068] 2. The function of increasing engine idle speed does not meet the exit condition.

[0069] 3. The current vehicle speed condition is 0, the whole vehicle is in static preparation for starting, and meets the working condition of preparing to get out of trouble and starting on a slope.

[0070] 4. The altitude is greater than 3000m, this value is verified according to the project vehicle, only when the altitude is greater than 3000m, the whole vehicle power will be affected. Therefore, the starting point condition of the altitude here is 3000m.

[0071] 5. The current transmission gear is in neutral, when the condition is met, the idle speed function will start to trigger, if the gear starts to engage after ND (neutral to forward gear), the load of the whole vehicle to the engine will be greater, at this time the power of the engine will be more insufficient, therefore the trigger condition of the gear is that the neutral gear starts to trigger under the premise of meeting other conditions.

[0072] 6. The premise condition of triggering the function of improving the power of the vehicle on the plateau is established SlopAndGearOK=1, which has been introduced above.

[0073] 7. The current transmission is not in the self-learning process or has not been learned, which prohibits triggering this function, because the transmission performs oil filling and clutch KP self-learning, which has certain requirements for engine speed, the engine must be in the normal idle speed range, not the high speed after triggering this function.

[0074] When all the conditions in 1-7 are met, the function of improving the power of the vehicle on the plateau is enabled flg_Idle2Work=1.

[0075] The basic idle speed is the basic idle speed set based on different altitudes and slopes, as shown in Table 4:

[0076] Table 4

[0077]

[0078] Among them, the slope of the horizontal coordinate is taken as positive in R gear.

[0079] Further, when the result of the judgment is that the premise condition of triggering the function of improving the power of the vehicle on the plateau is met, and multiple function enabling conditions are established, according to the current starting demand, the transmission of the target vehicle is controlled based on the basic idle speed in multiple gear engagement stages.

[0080] Specifically, the control of increasing engine idle speed in multiple gear engagement stages includes:

[0081] P1 stage idle speed control:

[0082] The P1 stage is mainly aimed at the current gear of the shift lever being in N or P, and the driver not operating the shift lever for gear shifting operation. The P1 stage improves the speed in preparation for the gear D or R for driving, needs to improve a certain speed based on different gears, altitudes, and slopes, and prepares for the next stage of the engine speed to quickly respond. Because the engine speed response is relatively slow in the plateau area, the P1 stage of the high engine speed to the target speed of the next stage is prepared for the quick response, to ensure that the engine speed can respond to the target speed of the TCU in the P2 stage. The shift lever is in N, and the transmission is also in neutral. The TCU sends the target speed demand of the P1 stage to the engine. 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 demand for starting gear shifting, because the transmission clutch starts to engage, the vehicle load is gradually loaded to the engine end, which causes the engine power to be insufficient, and even the engine speed is greatly pulled down. Therefore, the speed reserve of the P1 stage prepares for the engine power improvement at the start.

[0083] If there is no P1 stage, when the driver switches to D or R in the P2 stage, the engine load gradually increases when the clutch of the transmission gradually engages, which causes the engine power to be insufficient in the plateau, affecting the power performance of the vehicle in the scene of climbing or escaping.

[0084] P1 stage target idle value setting: increase the P1 stage compensation on the basis of the basic idle speed, and set the speed compensation in the P1 stage according to the requirements of different gears, altitudes, and slopes, and vehicle types.

[0085]

[0086] The starting speed of the first control cycle of the P1 stage is the maximum of the target idle value of the last cycle and the current engine speed value. From the second cycle, the target idle value of the last cycle is the idle value before filtering. The filter is set to ng_AltP1IdleRate.

[0087] When the driver starts to shift the driving gear and starts to start, the target gear of the TCU after internal processing of the gear signal received from the shift lever is the driving gear D or R, and the premise condition of the TCU idle speed in 1 is established SlopAndGearOK=1. Then exit the P1 stage, which indicates that the vehicle starts to prepare to start driving according to the driver's operation, and needs to enter the P2 stage immediately. In the process of shifting from N to D or R, the clutch main reduction is combined.

[0088] P2 stage idle control:

[0089] P2 stage is mainly for the process of the clutch in the transmission starts to engage when the driver operates the shift lever to shift gears and the transmission is in ND or NR. After the driver shifts to the driving gear, the load of the transmission will increase due to the gradual engagement of the clutch in the transmission. If the high idle speed in P1 stage is continued to be used, the engine power will be insufficient in high altitude areas, which will cause the engine speed to drop rapidly, resulting in the engine power not being able to respond in time. Therefore, in P2 stage, the engine speed needs to be compensated based on P1 stage to increase the demand for engine speed and torque. When the driver shifts to P2 stage after shifting gears, the TCU sends the target speed to the engine based on the current altitude, slope and gear in P1 stage, which is further compensated and increased, further preventing the engine speed from dropping during the starting stage, further improving the engine power, and ensuring that the vehicle can start quickly in high altitude areas.

[0090] P2 stage target idle speed setting: increase the compensation in P2 stage based on the base idle speed, and set the speed compensation in P2 stage according to the demand of different gears, altitudes and slopes, and vehicle models.

[0091]

[0092] The pre-filtering speed in P2 stage is the requested target speed in the previous cycle, and the filter is set to ng_AltP2IdleRate. The specific filter value is set according to the power response of the specific vehicle model and engine. In this stage, if the engaging clutch C1 in the transmission has ended from torque exchange to speed exchange, it indicates that the clutch in the transmission has ended in ND / R gear shifting, and the clutch in the transmission has been fully engaged. It can be considered that the transmission is in a hard link state, and the load of the vehicle has been fully transferred to the engine. At this time, the engine power has reached the limit according to the performance of the vehicle, and even if the speed is increased by 1000 rpm, the engine is difficult to improve. Therefore, the speed pre-boost in P1 stage guarantees the power in P2 stage when the engine load gradually increases, prevents the power from being lost too much under the premise of speed compensation in P2 stage, and improves the idle speed control to exit P2 stage and enter the next stage.

[0093] P3 stage idle speed control:

[0094] P3 stage mainly controls the engine speed strategy when the actual gear of the transmission is in driving gear D or R. In order to further improve the engine power in high altitude areas, the engine is required to maintain at least the target speed in P3 stage in this stage, further ensuring that the engine power will not be further lost due to insufficient capacity, and at least maintaining the target speed in P3.

[0095] The target idle value setting of the P3 stage: on the basis of the basic idle, increase the compensation of the P3 stage, and set the speed compensation in the P3 stage according to the requirements of different gears, altitudes and slopes and vehicle types.

[0096]

[0097] The pre-filtering speed of the P3 stage is the target speed of the previous cycle, and the filtering is set as ng_AltP3IdleRate, and the specific filtering value is set according to the power response of the specific vehicle type and engine. In this stage, it is the last stage of the idle speed raising function, if the driver does not step on the accelerator at all in this stage, or the gear position received from the gearshift or the target gear of the TCU is changed to the non-driving gears D or R due to faults and the like, indicating that the driver has no starting intention or the starting intention is cancelled, the idle speed raising condition is exited in time to avoid the risks of long idle speed raising time and ATF oil temperature rising too fast. After the P3 stage is ended, the idle speed control is directly exited and the P4 stage is entered.

[0098] P4 stage idle speed control:

[0099] The P4 stage is an idle speed control exit stage, mainly to control the idle speed to drop to the current engine speed according to a certain slope and send the target speed to the engine for execution. There are two ways to set the idle speed function to exit to the P4 stage according to the present application, one is to follow the normal control process: after the idle speed raising control is enabled, the speed is sent to the engine according to the P1, P2 and P3 stages, and finally enters the P4 stage to gradually reduce the speed to the current engine speed according to the exit setting of the P3 stage. The other way is that any of the conditions of the multiple function enabling exit conditions of the high-altitude power function of the vehicle is met, and then the speed request is reduced to the current engine speed value after entering the P4 stage according to the exit process.

[0100] The target idle value setting of the P4 stage: the minimum value of the current engine actual speed and the lowest 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 exited to the current engine speed according to a certain slope ng_AltP4IdleRate. If the target idle speed in the function of the present application is less than the actual engine speed, the engine will not respond to the speed request lower than the current engine actual speed according to the control principle of the engine, therefore the target speed n_AltP4IdleTgt of the P4 stage is generally set to be less than the lowest idle speed value of the engine.

[0101] It should be noted that the TBDs described above are all to be determined values, which can be determined according to actual experiments. In the embodiment of the present application, a plurality of function enabling exit conditions for improving the highland power function of the automobile are also needed to be set in advance; the corresponding driving state of the target automobile is detected at each gear stage; it is judged whether any function enabling exit condition is met based on the driving state; if it is detected that the driving state meets any function enabling exit condition, the function of improving the highland power function of the automobile is exited. For example, Figure 2 as shown.

[0102] The plurality of function enabling exit conditions include: 1. First, in the harsh driving conditions in the plateau area, such as large throttle and large power torque output conditions such as getting out of trouble or climbing, the temperature of the automatic transmission oil (Automatic Transmission Fluid, ATF) of the transmission, the clutch temperature, and the temperature of the hydraulic torque converter are likely to rise rapidly, and if not protected in time, the torque limiting and oil temperature alarm faults may be triggered, resulting in long-term vehicle use affected by the limit problem, so as to protect the transmission, the engine speed is increased, and the power output condition is exited in time when the throttle is detected to rise rapidly and the alarm and torque limiting temperature is about to be reached. Therefore, the ATF throttle protection temperature and the hydraulic torque converter protection temperature strategy are set, and when the ATF oil temperature is greater than t_AltATFTempLmt, or the hydraulic torque converter temperature is greater than t_AltTCCTempLmt, the request of the TCU to improve the idle speed is exited. In order to prevent the enable bit from frequently jumping due to temperature conditions, a hysteresis control of the temperature is set, and when the ATF oil temperature is less than t_AltATFTempLmt-offset, the ATF oil temperature greater than t_AltATFTempLmt can be monitored again, preventing the idle speed function from being triggered back and forth when the ATF oil temperature jumps around t_AltATFTempLmt. The hydraulic torque converter temperature monitoring is set in the same way.

[0103] 2. Based on the vehicle speed exit condition of different gears, when the vehicle starts to drive normally, it indicates that the torque output of the powertrain can meet the demand of the whole vehicle, so the function of improving the idle speed can be normally exited. The current setting is that when the gear lever position is in D, the vehicle speed is greater than v_AltVehSpd_D, and the enabling exit condition is established. When the gear lever position is in R, the vehicle speed is less than v_AltVehSpd_R (negative value), and the enabling exit condition is established.

[0104] 3、When the driver operates the shift lever to shift gears, when switching from D to R, or from R to D, the flg_Idle2Work≠1 is caused by the conditions in 1 not being met, so the enable exit condition is established. When the driver operates the shift lever to switch from D / R to N or N to D / R, the flg_Idle2Work≠1 is also caused, which will exit the enable condition. However, when the shift lever is switched from N to P or P to N, according to the current settings in 1, the enable exit will not be caused by the conditions such as slope, because N or P is considered as a non-drive gear, and it cannot be determined whether the next driver operation is for the vehicle to drive down the slope in D, or to drive down the slope (reverse) in R. Therefore, as long as the conditions in 1 are met, and other enable conditions are met, the exit cannot be exited, so that the power demand of the driver after shifting gears meets the requirements of vehicle driving.

[0105] When the idle boost phase is in progress, it is identified that the driver does not step 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 to protect the transmission and exit the function in time. Moreover, in the outermost layer of the entire function, the priority is the highest, if it is identified that: the temperature of the hydraulic transformer is too high; the temperature of the transmission oil is too high; the gear demand of the driver changes to a non-driving gear; the vehicle starting speed has reached a certain value, indicating that the vehicle has started successfully; any one of the above conditions is established, the function of increasing the engine speed is immediately exited. Further, the vehicle driving safety and personnel safety are ensured. The transmission oil temperature and the hydraulic transformer temperature change relatively fast according to different driving conditions and environment, so it is necessary to set a hysteresis measure to prevent the oil temperature from changing frequently and causing the function to enter and exit frequently. When the temperature is below the temperature preset function exit limit offset, the function can be triggered.

[0106] The beneficial effects of the embodiment of the application further include:

[0107] The function of increasing the engine power is triggered based on the altitude, slope, gear, driving mode, etc., and according to the starting demand of the current driver, the speed control in different gear stages of the transmission is divided into P1, P2, P3 and P4 stages, and the engine target speed is sent to the engine, and the engine responds to the target speed of the TCU to increase the power of the engine at high altitude. The target speed in different stages of the function triggering is based on different altitudes, the slope where the vehicle is currently located, the current gear D1, D2 or R (the speed ratio is different in different gears, and the power to be increased is also different), the driving mode selected by the current driver, and the current power demand is considered comprehensively. The strategy advantage is that the power increase is more accurate, and the target speed demand can be changed according to the current working condition to prevent dangerous problems such as uncontrollable power from occurring.

[0108] The driving mode selection based on the driver's requirement for power requires to improve the vehicle power. The four-wheel drive is triggered forcibly when the altitude is higher than a certain value, further enhancing the off-road power of the four-wheel drive mode. The highland power requirement of the driver in the four-wheel drive mode is met, and the same model vehicle with the same power is surpassed.

[0109] In order to meet the functional coverage of the whole vehicle model, both two-wheel drive and four-wheel drive models can be covered, and all configurations of the vehicle have the function, according to the driver's manual power requirement, the power recognition of the Sport button is increased, and the mis-trigger function of R reverse downhill or D forward downhill is increased according to different gears at different altitudes and slopes.

[0110] The function safety strategy of the Sport mode function trigger is to prevent the mis-trigger of the function of increasing idle speed when downhill in D and uphill in R. If the mis-trigger is triggered, the engine speed and torque are relatively strong, and the driver may not be able to control the vehicle speed by the brake, causing safety problems of the vehicle and personnel.

[0111] The control method for improving the highland power of the vehicle provided by the application, by obtaining the current starting requirement of the driver operating the target vehicle and the current altitude information and the current road slope information of the target vehicle, wherein the current starting requirement includes the starting gear, the driving mode and whether the target button is activated; according to the current starting requirement, the current altitude information and the current road slope information, whether to meet any one of the prerequisite conditions for triggering the function of improving the highland power of the vehicle is determined, and the determination result is obtained, wherein the prerequisite conditions include different road slope information corresponding to different altitude information triggering the prerequisite conditions for improving the highland power of the vehicle in different gears, four-wheel drive mode and target button activation; when the determination result is that any one of the prerequisite conditions for triggering the function of improving the highland power of the vehicle is met, the function of improving the highland power of the vehicle is started, and according to the current starting requirement, the speed of the transmission of the target vehicle is controlled in multiple gear stages. Compared with the defects of slow engine torque response, limited vehicle power and influence on vehicle and driving safety in the prior art, the method realizes the function of identifying and triggering the improvement of the power of the vehicle engine based on altitude, slope, gear, driving mode and other factors, improves the power of the engine in the highland and ensures driving safety.

[0112] The control device for improving the highland power of the vehicle provided by the application is described below, and the control device for improving the highland power of the vehicle described below can be correspondingly referred to the control method for improving the highland power of the vehicle described above.

[0113] Figure 3 The structure diagram of the control device for improving the highland power of the vehicle provided by the application, specifically comprising:

[0114] The acquisition module 301 is configured to acquire a current starting demand of a driver operating a target vehicle, and current altitude information and current road slope information of the target vehicle, wherein the current starting demand comprises a starting gear, a driving mode, and whether a target button is activated. For details, refer to the related description of the method embodiments.

[0115] The judgment module 302 is configured to judge whether any prerequisite condition for triggering the promotion of the highland power function of the vehicle is met according to the current starting demand, the current altitude information, and the current road slope information, to obtain a judgment result, wherein the prerequisite condition comprises a prerequisite condition for triggering the promotion of the highland power function of the vehicle under different gears, different road slope information corresponding to different altitude information, a four-wheel drive driving mode, and activation of the target button. For details, refer to the related description of the method embodiments.

[0116] The control module 303 is configured to start the promotion of the highland power function of the vehicle when the judgment result is that any prerequisite condition for triggering the promotion of the highland power function of the vehicle is met, and to perform speed control on a transmission of the target vehicle in multiple gear engagement stages according to the current starting demand. For details, refer to the related description of the method embodiments.

[0117] Figure 4 An example of a schematic diagram of the physical structure of an electronic device is shown in FIG. 1. Figure 4As shown, the electronic device can include a processor 810, a communications interface 820, a memory 830 and a communications bus 840, wherein the processor 810, the communications interface 820 and the memory 830 complete the communication with each other through the communications bus 840. The processor 810 can call the logic instructions in the memory 830 to execute the control method for improving the highland power of the automobile, which includes: obtaining the current starting demand of the driver operating the target automobile, and the current altitude information and the 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; determining whether any prerequisite condition for triggering the function of improving the highland power of the automobile is met according to the current starting demand, the current altitude information and the current road slope information, and obtaining a determination result, wherein the prerequisite condition includes the prerequisite condition for triggering the function of improving the highland power of the automobile under different gears corresponding to different altitude information and different road slope information, the four-wheel drive driving mode and the target button activation; when the determination result is that any prerequisite condition for triggering the function of improving the highland power of the automobile is met, starting the function of improving the highland power of the automobile, and according to the current starting demand, performing speed control on the transmission of the target automobile in multiple gear engagement stages.

[0118] In addition, the logic instructions in the memory 830 described above can be implemented in the form of a software function unit and sold or used as an independent product, which can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or part of the technical solutions can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk and various program code storage media.

[0119] In another aspect, the present application also provides a computer program product, which comprises a computer program stored in a non-transitory computer readable storage medium, and the computer program is capable of executing the control method for improving the plateau power of an automobile when executed by a processor, and the method comprises: obtaining a current starting demand of a target automobile operated by a driver, and current altitude information and current road slope information of the target automobile, wherein the current starting demand comprises a starting gear, a driving mode and whether a target button is activated; determining whether any prerequisite condition for triggering the function of improving the plateau power of the automobile is met according to the current starting demand, the current altitude information and the current road slope information, and obtaining a determination result, wherein the prerequisite conditions comprise different road slope information corresponding to different altitude information triggering the prerequisite condition for triggering the function of improving the plateau power of the automobile in different gears, a four-wheel drive driving mode and the target button being activated; when the determination result is that any prerequisite condition for triggering the function of improving the plateau power of the automobile is met, starting the function of improving the plateau power of the automobile, and performing speed control on a transmission of the target automobile in multiple gear engagement stages according to the current starting demand.

[0120] In another aspect, the present application also provides a non-transitory computer readable storage medium, which stores a computer program, and the computer program is capable of executing the control method for improving the plateau power of an automobile when executed by a processor, and the method comprises: obtaining a current starting demand of a target automobile operated by a driver, and current altitude information and current road slope information of the target automobile, wherein the current starting demand comprises a starting gear, a driving mode and whether a target button is activated; determining whether any prerequisite condition for triggering the function of improving the plateau power of the automobile is met according to the current starting demand, the current altitude information and the current road slope information, and obtaining a determination result, wherein the prerequisite conditions comprise different road slope information corresponding to different altitude information triggering the prerequisite condition for triggering the function of improving the plateau power of the automobile in different gears, a four-wheel drive driving mode and the target button being activated; when the determination result is that any prerequisite condition for triggering the function of improving the plateau power of the automobile is met, starting the function of improving the plateau power of the automobile, and performing speed control on a transmission of the target automobile in multiple gear engagement stages according to the current starting demand.

[0121] The device embodiments described above are only schematic, wherein the units illustrated as separate components can or can not be physically separate, and the components illustrated as units can or can not be physical units, i.e., can be located in one place or distributed on multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the present embodiment scheme. Those skilled in the art can understand and implement without creative labor.

[0122] Those skilled in the art can clearly understand the implementation of the embodiments by the description of the above embodiments, and the embodiments can be implemented by means of software and necessary universal hardware platforms, and of course, can also be implemented by hardware. Based on such understanding, the above technical solutions 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 a ROM / RAM, a magnetic disk, an optical disk, etc., and includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the method described in each embodiment or some parts of the embodiment.

[0123] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for some technical features thereof; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A control method for improving highland motility of an automobile, characterized by, The method comprises the following steps: obtaining the current starting demand of the driver operating the target vehicle, and the current altitude information and the current road slope information of the target vehicle, wherein the current starting demand comprises a starting gear, a driving mode and whether a target button is activated; judging whether any of the preconditions for triggering the function of improving the highland power 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 preconditions comprise different road slope information corresponding to different altitude information triggering the precondition for triggering the function of improving the highland power of the vehicle in different gears, four-wheel drive driving mode and target button activation; the step of judging whether any of the preconditions for triggering the function of improving the highland power 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, comprises: judging whether the current driving mode or the target button of the target vehicle is activated according to the current starting demand, wherein the current driving mode comprises two-wheel drive mode and four-wheel drive mode; if the target button is activated, the judgment result is that the precondition for triggering the function of improving the highland power of the vehicle is met; if the current driving mode is four-wheel drive mode, the judgment result is that the precondition for triggering the function of improving the highland power of the vehicle is met; if the target button is not activated and the current driving mode is two-wheel drive mode, it is judged whether there is a target precondition corresponding to the current altitude information and the current road slope information in a plurality of preconditions for triggering the function of improving the highland power of the vehicle, and a judgment result is obtained; when the judgment result is that any of the preconditions for triggering the function of improving the highland power of the vehicle is met, starting the function of improving the highland power of the vehicle, and controlling the speed of the transmission of the target vehicle in a plurality of gear engagement stages according to the current starting demand.

2. The method of claim 1, wherein, the step of starting the function of improving the highland power of the vehicle when the judgment result is that any of the preconditions for triggering the function of improving the highland power of the vehicle is met, and controlling the speed of the transmission of the target vehicle in a plurality of gear engagement stages according to the current starting demand, comprises: pre-setting a plurality of function enabling conditions of the function of improving the highland power of the vehicle and a basic idle speed based on different altitude information and road slope information; when the judgment result is that any of the preconditions for triggering the function of improving the highland power of the vehicle is met, and the plurality of function enabling conditions are all met, controlling the speed of the transmission of the target vehicle in a plurality of gear engagement stages based on the basic idle speed according to the current starting demand.

3. The method of claim 2, wherein, the step of controlling the speed of the transmission of the target vehicle in a plurality of gear engagement stages based on the basic idle speed according to the current starting demand, comprises: obtaining preset speed compensation data corresponding to each gear engagement stage according to the current starting demand; controlling the speed of the transmission of the target vehicle based on the preset speed compensation data corresponding to each gear engagement stage and the basic idle speed.

4. The method of claim 3, wherein, The method further comprises: pre-setting a plurality of function enabling exit conditions of the function of improving the highland power of the vehicle; detecting the corresponding driving state of the target vehicle in each gear engagement stage; If it is detected that the driving state satisfies any one function enabling exit condition, the target vehicle is controlled to exit the enhanced highland power function.

5. The method of claim 1, wherein, The current starting demand further includes a current starting condition, and the method further includes: If the current starting condition is downhill in forward gear or uphill in reverse gear, the target button is prohibited from being activated.

6. A control device for enhancing the highland driving performance of an automobile, characterized by comprising: The method comprises: an acquisition module, configured to acquire a current starting demand of a driver operating a target vehicle, and current altitude information and current road slope information of the target vehicle, wherein the current starting demand comprises a starting gear, a driving mode, and whether a target button is activated; a judgment module, configured to judge, according to the current starting demand, the current altitude information, and the current road slope information, whether any one prerequisite condition for triggering the enhanced highland power function is satisfied, to obtain a judgment result, wherein the prerequisite condition comprises different road slope information corresponding to different altitude information triggering the enhanced highland power function in different gears, four-wheel drive driving mode, and target button activation; the judgment of whether any one prerequisite condition for triggering the enhanced highland power function is satisfied according to the current starting demand, the current altitude information, and the current road slope information to obtain the judgment result comprises judging, according to the current starting demand, whether the current driving mode or the target button of the target vehicle is activated, wherein the current driving mode comprises two-wheel drive mode and four-wheel drive mode; if the target button is activated, the judgment result is that the prerequisite condition for triggering the enhanced highland power function is satisfied; if the current driving mode is the four-wheel drive mode, the judgment result is that the prerequisite condition for triggering the enhanced highland power function is satisfied; if the target button is not activated and the current driving mode is the two-wheel drive mode, it is determined whether there is a target prerequisite condition corresponding to the current altitude information and the current road slope information in a plurality of prerequisite conditions for triggering the enhanced highland power function, to obtain the judgment result; a control module, configured to, when the judgment result is that any one prerequisite condition for triggering the enhanced highland power function is satisfied, start the enhanced highland power function, and perform speed control on a transmission of the target vehicle in a plurality of gear engagement stages according to the current starting demand.

7. An electronic device comprising a memory, a processor, and a computer program stored on the memory and running on the processor, characterized in that, The processor executes the computer program to implement the control method for enhancing highland power of a vehicle according to any one of claims 1 to 5.

8. A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the control method for enhancing highland power of a vehicle according to any one of claims 1 to 5.

9. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to implement the control method for enhancing highland power of a vehicle according to any one of claims 1 to 5.

Images