Method, device, medium and vehicle for increasing vehicle cruising range

Abstract

The present disclosure relates to a method, device, medium and vehicle for increasing the cruising range of a vehicle, belonging to the field of vehicle control technology, including obtaining the current driving mode of the vehicle and the road condition information of the road section ahead; based on the driving mode, the road condition information and the user's historical driving data, obtaining the speed range of the vehicle passing through the road section ahead, and obtaining the fault information of the vehicle in the road section corresponding to the road condition information under the historical state; according to the speed range, obtaining the required output power of the motor; according to the required output power of the motor and the fault information, determining the battery output power of the vehicle. The present disclosure determines a reasonable battery output power, which can effectively control the speed range of the vehicle during driving, ensure that the vehicle's driving speed does not fluctuate too much, and can optimize the battery feedback power according to the reasonable battery output power, so as to facilitate the power battery to recover energy and increase the cruising range of the vehicle.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle control technology, and in particular, to a method, device, medium and vehicle for increasing vehicle cruising range. Background Art

[0002] The SOP (State of Power) of an electric vehicle's lithium battery can reflect the maximum discharge and charge power that the battery can provide to the vehicle when the electric vehicle is subjected to instantaneous and continuous high current at the next moment. The SOP table provided by the battery manufacturer includes the discharge and charge power of the lithium battery, which can also be called the battery power map. That is, according to the battery power map, the battery discharge power and feedback power can be obtained based on the battery's SOC (State of Charge) and the battery's temperature.

[0003] In the prior art, the driving of a vehicle is controlled according to the user's wishes. Therefore, based on the existing vehicle, the battery output energy is controlled according to the motor speed when it is controlled. At this time, the output power of the battery will be larger, and the power fed back to the battery will be smaller. The electricity released by the battery is not effectively utilized and recovered, resulting in the problem of shorter vehicle range. Summary of the invention

[0004] The purpose of the present disclosure is to provide a method, device, medium and vehicle for increasing the cruising range of a vehicle, so as to solve the problem in the prior art that the battery power is not effectively utilized and recycled, resulting in a short cruising range of the vehicle.

[0005] In order to achieve the above object, in a first aspect of the present disclosure, a method for increasing the cruising range of a vehicle is provided, the method comprising:

[0006] Obtain the vehicle's current driving mode and road condition information of the road ahead;

[0007] Based on the driving mode, the road condition information and the user's historical driving data, obtaining a speed range of the vehicle passing through the road section ahead, and obtaining fault information of the vehicle in the road section corresponding to the road condition information under a historical state;

[0008] According to the vehicle speed range, obtaining the required output power of the motor;

[0009] The battery output power of the vehicle is determined according to the required output power of the motor and the fault information.

[0010] Optionally, the step of obtaining a speed range of the vehicle passing through the road section ahead based on the driving mode, the road condition information and the user's historical driving data includes:

[0011] When the driving mode is the automatic driving mode, determining, according to the road condition information and the historical driving data of the user, a plurality of historical vehicle speeds of the vehicle traveling on the road section corresponding to the road condition information in a historical state;

[0012] A vehicle speed range for the vehicle to pass through a road section ahead is determined based on the multiple historical vehicle speeds.

[0013] Optionally, the step of obtaining a speed range of the vehicle passing through the road section ahead based on the driving mode, the road condition information and the user's historical driving data includes:

[0014] When the driving mode is a manual driving mode, obtaining an accelerator pedal signal, a brake pedal signal and a whole vehicle operation mode of the vehicle;

[0015] Determining the user's driving intention according to the accelerator pedal signal, the brake pedal signal and the user's historical driving data, wherein the driving intention includes an emergency acceleration intention and an emergency braking intention;

[0016] The speed range of the vehicle through the road section ahead is determined based on the road condition information, the vehicle operation mode and the driving intention.

[0017] Optionally, before the step of determining the battery output power of the vehicle according to the motor required output power and the fault information, the method further includes:

[0018] According to the driving intention and the vehicle speed range, obtaining a target battery power map from a plurality of preset battery power maps;

[0019] The step of determining the battery output power of the vehicle according to the motor required output power and the fault information comprises:

[0020] The battery output power is obtained according to the required output power of the motor, the fault information and the target battery power map.

[0021] Optionally, after the step of acquiring the accelerator pedal signal and the brake pedal signal of the vehicle, the method further includes:

[0022] Acquiring a first change rate of an accelerator pedal of a vehicle according to the accelerator pedal signal;

[0023] determining, according to the first change rate, whether the user has the emergency acceleration intention;

[0024] When it is determined that the user has the emergency acceleration intention, the acceleration of the vehicle is controlled to be within a first preset range.

[0025] Optionally, after the step of acquiring the accelerator pedal signal and the brake pedal signal of the vehicle, the method further includes:

[0026] acquiring a second change rate of a vehicle brake pedal according to the brake pedal signal;

[0027] determining, according to the second change rate, whether the user has the emergency braking intention;

[0028] When it is determined that the user has the emergency braking intention, the acceleration of the vehicle deceleration is controlled to be within a second preset range.

[0029] Optionally, after obtaining the battery output power according to the vehicle speed range, the method further includes:

[0030] Get the actual distance between the vehicle's current position and the target position;

[0031] According to the battery output power and the actual distance, obtaining the maximum temperature of the battery during the period when the vehicle travels from the current position to the target position;

[0032] When the maximum temperature does not exceed the temperature threshold, it is prohibited to start the water cooling system during the driving of the vehicle.

[0033] In a second aspect of the present disclosure, a device for increasing a vehicle's cruising range is provided, the device comprising:

[0034] The acquisition module is used to obtain the current driving mode of the vehicle and the road condition information of the road ahead;

[0035] A first obtaining module is used to obtain a speed range of the vehicle passing through the front road section and obtain fault information of the vehicle in the road section corresponding to the road condition information under a historical state based on the driving mode, the road condition information and the user's historical driving data;

[0036] A second obtaining module is used to obtain the required output power of the motor according to the vehicle speed range;

[0037] A determination module is used to determine the battery output power of the vehicle according to the battery output power and the fault information.

[0038] In a third aspect of the present disclosure, a machine-readable storage medium is provided, wherein the machine-readable storage medium stores machine-executable instructions, and when the machine-executable instructions are executed by a first processor, the method for increasing the vehicle cruising range as described in the first aspect above is implemented.

[0039] In a fourth aspect of the present disclosure, a vehicle is provided, the vehicle comprising:

[0040] A second processor and a first memory, wherein the first memory stores machine executable instructions that can be executed by the second processor, and the second processor is used to execute the machine executable instructions to implement the method for increasing the vehicle cruising range as described in the first aspect above.

[0041] The disclosed embodiment obtains the speed range of the vehicle passing through the road section ahead according to the current driving mode of the vehicle, the road condition information of the road section ahead, and the user's historical driving data, thereby determining the required output power of the motor of the vehicle according to the speed range, and determining the battery output power according to the required output power of the motor and the fault information of the vehicle in the road section corresponding to the road condition information under the historical state. Compared with the prior art that controls the driving of the vehicle according to the user's wishes, the battery output energy is controlled based on the motor speed controlled by the user, and the instantaneous output power of the battery will be larger, and the energy feedback utilization rate is usually small. The present disclosure takes into account the current driving mode of the vehicle, the road condition information of the road section ahead, and the user's historical driving data, and determines a reasonable battery output power, which can effectively control the speed range of the vehicle during driving, ensure that the vehicle's driving speed does not fluctuate too much, and can optimize the battery feedback power according to the reasonable battery output power, so as to facilitate the power battery to recover energy and increase the vehicle's cruising range.

[0042] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0044] Figure 1 The present invention is a flow chart showing a method for increasing the cruising range of a vehicle according to an exemplary embodiment.

[0045] Figure 2 The invention is a block diagram of a device for increasing the cruising range of a vehicle according to an exemplary embodiment.

[0046] Figure 3 It is a schematic diagram of a functional block diagram of a vehicle according to an exemplary embodiment.

[0047] Figure 4 The invention is a block diagram of a device for increasing the cruising range of a vehicle according to an exemplary embodiment. DETAILED DESCRIPTION

[0048] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0049] In the related technology, the battery energy is generally used according to the user's wishes. The vehicle prioritizes ensuring that the vehicle battery does not fail and controls the battery output power according to the battery power map sent by the battery management system and the fault information sent by the motor controller. That is, when the existing vehicle is controlled, the motor speed is controlled according to the user's driving behavior to control the battery output energy. Under the condition of rapid acceleration / deceleration, the instantaneous output power of the battery will be large, and the energy feedback utilization rate is usually low, resulting in the actual waste of battery power.

[0050] In the related art, the vehicle's onboard navigation and high-definition maps can be used to evaluate the entire road section of a known path on the map. Electric vehicles can query the battery's power map to obtain the maximum discharge and charging power that the current battery can provide based on the battery's current temperature and the battery's current SOC value. Based on the high-definition map transmitted back by the on-board navigation, the present disclosure provides a solution to the above problem: segment the road conditions of the path that the vehicle will travel, control the vehicle's driving speed based on the user's driving habits under different road conditions and different driving modes, and thereby calculate the vehicle's motor output power and battery output power based on the vehicle's driving speed.

[0051] The present disclosure is based on the feasibility analysis of big data. The collected user data and high-definition maps can be transmitted back to the vehicle server to fit and calculate the relevant big data, thereby optimizing the use of battery power while meeting the user's needs for vehicle control.

[0052] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0053] See also Figure 1 , Figure 1 is a flow chart showing a method for increasing vehicle cruising range according to an exemplary embodiment. Figure 1 As shown, methods for increasing vehicle range include:

[0054] S101, obtaining the current driving mode of the vehicle and the road condition information of the road ahead.

[0055] Specifically, the current driving mode of the vehicle includes an automatic driving mode and a manual driving mode. The automatic driving mode realizes an unmanned intelligent car through an on-board computer system. The automatic driving car relies on artificial intelligence, visual computing, radar, monitoring devices and global positioning systems to work together, so that the computer can automatically and safely operate the motor vehicle without any human active operation. The manual driving mode allows the driver to manually select the appropriate gear from 1 to 4 to operate the vehicle to meet the driver's driving needs. The road condition information is obtained based on the on-board navigation and high-definition map. After the vehicle is powered on, the user enters the destination in the on-board navigation, and the vehicle obtains the driving path on the high-definition map, and obtains the road condition information of the road ahead according to the driving path. The road condition information may include the flatness of the driving road, the slope of the road, the turning angle of the road, whether there is a traffic light ahead, and whether the road ahead is blocked.

[0056] S102, based on the driving mode, road condition information and the user's historical driving data, obtain the speed range of the vehicle passing through the road section ahead, and obtain the fault information of the vehicle in the road section corresponding to the road condition information under the historical state.

[0057] Specifically, the user's historical driving data may include the speed of the user when passing through the road section corresponding to the current road condition information, the vehicle failure that occurred when the vehicle passed through the road section corresponding to the current road condition information, and whether the current road condition information is a special road condition of a long uphill or long downhill, under which the vehicle may fail. The speed range is used to limit the speed of the vehicle traveling on the road section corresponding to the road condition information. The speed range can be used to determine the motor torque range of the vehicle from starting to constant speed driving, and the battery charging and discharging power can be calculated based on the torque range.

[0058] In addition, during the driving process of the vehicle, the average speed of the vehicle on the road section corresponding to the current road condition information is recorded at the same time, and the speed range stored in the vehicle is updated periodically, such as once a week or once a month.

[0059] The fault information includes the faults reported by the vehicle on the road section corresponding to the current road condition information. For example, if the vehicle is operated improperly on a long uphill road, the battery may suffer from overtemperature or overcurrent faults; if the vehicle is operated improperly on a long downhill road, the battery may suffer from overtemperature or feedback overcurrent faults; when the vehicle battery is fully charged, a fault may occur that prohibits current from recharging the battery, resulting in current waste.

[0060] S103: Obtain required output power of the motor according to the vehicle speed range.

[0061] Specifically, the motor required output power is the power required to be output when the vehicle is traveling at different speeds in the vehicle speed range. After obtaining the vehicle speed range, the motor output torque range from starting to constant speed driving can be calculated based on the vehicle speed range and the motor required output power. The battery discharge and charging power can be calculated based on the torque range.

[0062] S104: Determine the battery output power of the vehicle according to the motor required output power and the fault information.

[0063] Specifically, the vehicle's VCU (Vehicle Control Unit) can determine the actual output power of the vehicle battery based on the battery output power and the vehicle's fault information while avoiding vehicle failure.

[0064] By combining the analysis of historical faults with real-time faults, the battery output power can be further optimized to avoid the vehicle's fault reporting mechanism affecting the vehicle's driving.

[0065] The disclosed embodiment obtains the speed range of the vehicle passing through the road section ahead according to the current driving mode of the vehicle, the road condition information of the road section ahead, and the user's historical driving data, thereby determining the required output power of the motor of the vehicle according to the speed range, and determining the battery output power according to the required output power of the motor and the fault information of the vehicle in the road section corresponding to the road condition information under the historical state. Compared with the prior art that controls the driving of the vehicle according to the user's wishes and controls the battery output energy based on the motor speed controlled by the user, the instantaneous output power of the battery will be larger, and the energy feedback utilization rate is usually smaller. The present disclosure takes into account the current driving mode of the vehicle, the road condition information of the road section ahead, and the user's historical driving data, and determines a reasonable battery output power, which can effectively control the speed range of the vehicle during driving, ensure that the vehicle's driving speed does not fluctuate too much, and can optimize the battery feedback power according to the reasonable battery output power, so as to facilitate the power battery to recover energy and increase the vehicle's cruising range.

[0066] Furthermore, the optimization of battery output power can also increase the battery life to a certain extent, ensuring the battery usage time.

[0067] In addition, the present invention does not have any other changes in the hardware settings and circuit structure, but achieves the above-mentioned goals based on changes in the control logic without any increase in other costs. The vehicle meets the user's demand for improving the vehicle's cruising range at the same cost.

[0068] In some embodiments, the step of obtaining a speed range of the vehicle passing through the road ahead based on the driving mode, road condition information, and historical driving data of the user includes:

[0069] When the driving mode is the automatic driving mode, multiple historical vehicle speeds of the vehicle traveling on the road section corresponding to the road condition information under the historical state are determined according to the road condition information and the user's historical driving data.

[0070] Based on multiple historical vehicle speeds, determine the speed range of the vehicle passing through the road section ahead.

[0071] Specifically, when the vehicle is in the automatic driving mode, the vehicle can be controlled by the automatic driving system, and the vehicle itself determines its driving state and speed range based on different road condition information. During the historical driving process, the user has multiple historical speeds corresponding to the road section of the current road condition information. The speed range can be obtained by taking multiple historical speeds within a period of time, and the average of the historical speeds within a period of time can be taken, and the speed range is based on the preset error. For example, within a week, the speeds of the vehicle passing through the uphill section of the highway are 60km / h, 62km / h, 65km / h and 59km / h respectively, then the current speed range of the vehicle passing through the uphill section of the highway is 59-65km / h, or the average speed of the vehicle passing through the uphill section of the highway within a week is calculated to be 61.5km / h, and the error is 2.5km / h, and the speed range is 59-64km / h.

[0072] In some embodiments, the step of obtaining a speed range of the vehicle passing through the road ahead based on the driving mode, road condition information, and historical driving data of the user includes:

[0073] When the driving mode is a manual driving mode, the accelerator pedal signal, brake pedal signal and the whole vehicle operation mode of the vehicle are obtained.

[0074] The user's driving intention is determined according to the accelerator pedal signal, the brake pedal signal and the user's historical driving data, and the driving intention includes emergency acceleration intention and emergency braking intention.

[0075] Determine the speed range of the vehicle through the road section ahead based on road condition information, vehicle operation mode and driving intention.

[0076] Specifically, in manual driving mode, the vehicle is operated by the user, and the user's driving habits are integrated into the vehicle control system. The user's historical driving data can be the accelerator pedal signal and brake pedal signal generated by the user stepping on the vehicle's accelerator pedal and / or the vehicle's brake pedal during the historical driving process of the vehicle. When the user controls the vehicle to drive, the user's driving intention can be obtained based on the accelerator pedal signal and the brake pedal signal. Driving intention includes acceleration intention, deceleration intention, emergency acceleration intention and emergency braking intention. When the user's driving intention is acceleration intention and deceleration intention, the vehicle can be accelerated or decelerated within the restricted speed range. When the user's driving intention is emergency acceleration intention and emergency braking intention, the vehicle's speed change can be limited to be too fast, that is, the acceleration size of the vehicle when accelerating and decelerating is limited to avoid wasting the battery's output energy.

[0077] The vehicle operation mode generally includes economic mode (ECO mode), sports mode (SPORT mode) and anti-skid mode for ice and snow weather. According to the road condition information in front of the vehicle, the vehicle operation mode and the user's driving intention, the speed range of the vehicle passing through the road ahead can be determined. And the current used by the battery is calculated according to the motor torque corresponding to the vehicle speed. The output power of the battery is calculated according to the battery voltage. Generally, when the vehicle operation mode is economic mode, the vehicle will limit the energy output of the battery more to ensure the battery's endurance, so the speed value corresponding to the speed range in economic mode will be smaller. Based on the sports mode selected by the user, the vehicle controls the high torque output of the vehicle motor. At this time, the discharge power of the battery is large and the charging power is small, so the speed value corresponding to the speed range in sports mode is large. Anti-skid mode is to keep the vehicle in the best stability by applying the wheel brakes or controlling the engine torque when the vehicle slips or drifts. At this time, the feedback power of the battery can be ignored to ensure the safe driving of the vehicle.

[0078] In some embodiments, before the step of determining the battery output power of the vehicle according to the motor required output power and the fault information, the method further includes:

[0079] According to the driving intention and the vehicle speed range, a target battery power map is obtained from a plurality of preset battery power maps;

[0080] The steps of determining the battery output power of the vehicle according to the motor required output power and the fault information include:

[0081] The battery output power is obtained according to the motor required output power, fault information and target battery power map.

[0082] Specifically, after the vehicle determines the driving intention and the vehicle speed range, a corresponding target battery power map can be selected according to a plurality of preset battery power maps, and the battery output power can be obtained.

[0083] Multiple battery power maps may include a 2-second power map, a 10-second power map, a 30-second power map, a 60-second power map, a 120-second power map, and a continuous power map, which respectively represent the maximum discharge and charging power that the battery can provide at the next moment, i.e., the next 2 seconds, 10 seconds, 30 seconds, 60 seconds, 120 seconds, and a continuous high current. Among them, the continuous power map is the power limit that the vehicle can use for a long time, for example, it can discharge at 1C for one hour. In general, the power limit of less than 10 seconds given by the battery factory is used as the peak power of the battery cell, and the power limit of more than 30 seconds is used as the constant power. The power limit mainly constrains the charging and discharging of the battery and the energy feedback system at high and low temperatures.

[0084] In addition, in order to minimize the use of peak power, the user's high power output can be limited under the condition of meeting the time, thereby extending the driving range. For example, based on the accelerator pedal signal, it is determined that the user has the intention to accelerate. However, in order to avoid the pulse power generated by the battery during sudden acceleration, the power map of less than 10 seconds can be used instead of the 30-second power map of the battery. After supporting for 30 seconds, it switches to the 60-second power map until it switches to the continuous power map and does not change.

[0085] In some embodiments, after the step of acquiring the accelerator pedal signal and the brake pedal signal of the vehicle, the method further includes:

[0086] According to the accelerator pedal signal, a first change rate of the accelerator pedal of the vehicle is acquired.

[0087] Based on the first change rate, it is determined whether the user has an emergency acceleration intention.

[0088] When it is determined that the user has an emergency acceleration intention, the acceleration of the vehicle is controlled to be within a first preset range.

[0089] Specifically, based on the accelerator pedal signal, a first opening before the change and a second opening after the change of the accelerator pedal signal can be collected. Based on the difference between the first opening and the second opening and the time difference between collecting the first opening and the second opening, a first change rate of the accelerator pedal can be calculated. When the first change rate exceeds a first preset change rate, it is determined that the user has an emergency acceleration intention. When the first change rate does not exceed the first preset change rate, it is determined that the user has an acceleration intention.

[0090] When it is determined that the user has an intention to accelerate, the first change rate does not exceed the first preset change rate, that is, the vehicle speed increase is relatively stable, that is, a normal driving state. When it is determined that the user has an intention to accelerate urgently, the first change rate exceeds the first preset change rate, then the acceleration of the vehicle is controlled to be within the first preset range. When controlling the acceleration of the vehicle, the rate of change of the motor torque can be controlled within a preset torque variation range according to the motor torque corresponding to the first opening of the vehicle and the motor torque corresponding to the second opening of the motor. The method of controlling the rate of change of the motor torque may be to reduce the value of the motor torque corresponding to the second opening of the accelerator pedal, or to increase the duration of the motor torque change. In order to meet the acceleration needs of the user, it is generally adopted to increase the duration of the motor torque change to meet the user's intention of urgent acceleration, which can reduce the output energy of the battery and increase the vehicle's cruising range.

[0091] In some embodiments, after the step of acquiring the accelerator pedal signal and the brake pedal signal of the vehicle, the method further includes:

[0092] A second change rate of the vehicle brake pedal is acquired according to the brake pedal signal.

[0093] Based on the second change rate, it is determined whether the user has an emergency braking intention.

[0094] When it is determined that the user has an emergency braking intention, the acceleration of the vehicle deceleration is controlled to be within a second preset range.

[0095] Specifically, based on the brake pedal signal, the third opening of the brake pedal signal before the change and the fourth opening after the change can be collected. Based on the difference between the third opening and the fourth opening and the time difference between collecting the third opening and the fourth opening, the second change rate of the accelerator pedal can be calculated. When the second change rate exceeds the second preset change rate, it is determined that the user has an intention to perform emergency braking. When the second change rate does not exceed the second preset change rate, it is determined that the user has an intention to decelerate.

[0096] When it is determined that the user intends to decelerate, the second change rate does not exceed the second preset change rate, that is, the vehicle speed deceleration is relatively stable. When it is determined that the user intends to perform emergency braking, the second change rate exceeds the second preset change rate, and the acceleration of the vehicle is controlled to be within the second preset range. When controlling the acceleration of the vehicle deceleration, the duration of the motor torque change can be increased according to the motor torque corresponding to the third opening of the vehicle and the motor torque corresponding to the fourth opening motor to control the change rate of the motor torque within the preset torque change range. The output energy of the battery can be reduced to increase the vehicle's cruising range.

[0097] In addition, based on the HD map, it is currently possible to determine whether the traffic light in front of the vehicle is red or green. For example, if there is a traffic light after the turn in the road ahead of the vehicle, when the vehicle is in the automatic driving mode, if the traffic light is determined to be red, the acceleration of the vehicle's deceleration is controlled, and the braking mode is set to electric braking, which can maximize the energy recovered by the battery; if it is green, the vehicle drives at the original speed, and the vehicle does not need to slow down or brake when turning, thereby avoiding the use of battery pulse power, making the battery current output stable, and avoiding battery energy waste.

[0098] In some embodiments, after obtaining the battery output power according to the vehicle speed range, the method further includes:

[0099] Get the actual distance between the vehicle's current position and the target position.

[0100] According to the battery output power and the actual distance, the maximum temperature of the battery during the vehicle's driving from the current position to the target position is obtained.

[0101] If the maximum temperature does not exceed the temperature threshold, it is prohibited to turn on the water cooling system while the vehicle is driving.

[0102] Specifically, the current position and target position of the vehicle are obtained based on the data input by the user into the vehicle navigation. The target position is the user's destination, and the actual distance is the total distance traveled by the vehicle from the current position to the target position, rather than the straight-line distance. The temperature threshold is the highest temperature of the battery without damaging the battery life. The water cooling system of the vehicle is used to cool the battery. When the water cooling system is turned on, the water pump and air conditioner are started, which consumes the power of the battery. After obtaining the battery output power, the output current of the battery and the discharge rate of the battery during the vehicle driving process can be simulated and calculated to deduce the value of the maximum temperature that the battery can theoretically rise. If the maximum temperature value does not exceed the temperature threshold limited by the battery, the water cooling system can be turned off to save battery energy. For example, the condition for turning on the battery water cooling system is that the temperature reaches 35 degrees Celsius, and the temperature threshold corresponding to the battery power map that meets the vehicle's expected route and speed is 45 degrees Celsius. The highest temperature of the battery from the current position to the target position is calculated to be 40 degrees Celsius, then water cooling can be prohibited instead of turning on water cooling at 35 degrees Celsius.

[0103] In this embodiment, by setting the maximum temperature of the battery not exceeding the temperature threshold during the vehicle's driving from the current position to the target position as a condition for prohibiting water cooling from being turned on during the vehicle's driving, battery energy can be saved while ensuring the battery's service life, thereby further extending the vehicle's cruising range.

[0104] See also Figure 2 , Figure 2is a schematic diagram of a structure of a device 500 for increasing a vehicle's cruising range according to an exemplary embodiment. Figure 2 As shown, the device 500 for increasing the cruising range of a vehicle includes:

[0105] The acquisition module 510 is used to acquire the current driving mode of the vehicle and the road condition information of the road section ahead of the vehicle;

[0106] The first obtaining module 520 is used to obtain the speed range of the vehicle passing through the road section ahead, and obtain the fault information of the vehicle in the road section corresponding to the road condition information under the historical state, based on the driving mode, the road condition information and the historical driving data of the user;

[0107] The second obtaining module 530 is used to obtain the required output power of the motor according to the vehicle speed range;

[0108] The control module 540 is used to determine the battery output power of the vehicle according to the motor output power requirement and fault information.

[0109] In some embodiments, the first obtaining module 520 includes:

[0110] The first submodule is used to determine, when the driving mode is the automatic driving mode, a plurality of historical vehicle speeds of the vehicle traveling on a road section corresponding to the road condition information in a historical state according to the road condition information and the user's historical driving data;

[0111] The second submodule is used to determine the speed range of the vehicle passing through the road section ahead according to multiple historical vehicle speeds.

[0112] In some embodiments, the first obtaining module 520 includes:

[0113] The third submodule is used to obtain the accelerator pedal signal, brake pedal signal and the whole vehicle operation mode of the vehicle when the driving mode is the manual driving mode;

[0114] The fourth submodule is used to determine the user's driving intention according to the accelerator pedal signal, the brake pedal signal and the user's historical driving data, where the driving intention includes emergency acceleration intention and emergency braking intention;

[0115] The fifth submodule is used to determine the speed range of the vehicle passing through the road section ahead according to road condition information, vehicle operation mode and driving intention.

[0116] In some embodiments, the device 500 for increasing vehicle range further includes:

[0117] A target acquisition module, used to acquire a target battery power map from a plurality of preset battery power maps according to a driving intention and a vehicle speed range;

[0118] The second obtaining module 530 is specifically used for:

[0119] The battery output power is obtained according to the motor required output power, fault information and target battery power map.

[0120] In some embodiments, the device 500 for increasing vehicle range further includes:

[0121] A first change acquisition module, used for acquiring a first change rate of an accelerator pedal of a vehicle according to an accelerator pedal signal;

[0122] an acceleration determination module, configured to determine whether the user has an emergency acceleration intention according to the first change rate;

[0123] The acceleration control module is used to control the acceleration of the vehicle within a first preset range when it is determined that the user has an emergency acceleration intention.

[0124] In some embodiments, the device 500 for increasing vehicle range further includes:

[0125] A second change acquisition module, used for acquiring a second change rate of a brake pedal of the vehicle according to a brake pedal signal;

[0126] A braking determination module is used to determine whether the user has an emergency braking intention according to the second change rate;

[0127] The deceleration control module is used to control the acceleration of the vehicle deceleration within a second preset range when it is determined that the user has an emergency braking intention.

[0128] In some embodiments, the device 500 for increasing vehicle range further includes:

[0129] A distance acquisition module is used to obtain the actual distance between the current position of the vehicle and the target position;

[0130] A temperature acquisition module is used to obtain the maximum temperature of the battery during the vehicle's travel from the current position to the target position according to the battery output power and the actual distance;

[0131] The module forbidding to start is used to forbid starting the water cooling system during vehicle driving when the maximum temperature does not exceed the temperature threshold.

[0132] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0133] In addition, to achieve the above-mentioned purpose, an embodiment of the present disclosure further provides a vehicle, the vehicle comprising:

[0134] A second processor and a first memory, the first memory stores machine executable instructions that can be executed by the second processor, and the second processor is used to execute the machine executable instructions to implement the above-mentioned method of increasing the vehicle's cruising range.

[0135] See also Figure 3 , Figure 3 6 is a functional block diagram of a vehicle 600 according to an exemplary embodiment. For example, the vehicle 600 may be a hybrid vehicle, a non-hybrid vehicle, an electric vehicle, a fuel cell vehicle, or other types of vehicles. The vehicle 600 may be an autonomous vehicle, a semi-autonomous vehicle, or a non-autonomous vehicle.

[0136] Reference Figure 3 , the vehicle 600 may include various subsystems, for example, an infotainment system 610, a perception system 620, a decision control system 630, a drive system 640, and a computing platform 650. The vehicle 600 may also include more or fewer subsystems, and each subsystem may include multiple components. In addition, each subsystem and each component of the vehicle 600 may be interconnected by wire or wireless means.

[0137] In some embodiments, the infotainment system 610 may include a communication system, an entertainment system, and a navigation system, among others.

[0138] The perception system 620 may include several sensors for sensing information about the environment around the vehicle 600. For example, the perception system 620 may include a global positioning system (the global positioning system may be a GPS system, or a Beidou system or other positioning systems), an inertial measurement unit (IMU), a laser radar, a millimeter wave radar, an ultrasonic radar, and a camera.

[0139] The decision control system 630 may include a computing system, a vehicle controller, a steering system, a throttle, and a braking system.

[0140] The drive system 640 may include components that provide power movement for the vehicle 600. In one embodiment, the drive system 640 may include an engine, a torque source, a transmission system, and wheels. The engine may be one or a combination of multiple of an internal combustion engine, an electric motor, and an air compression engine. The engine is capable of converting the torque provided by the torque source into mechanical torque.

[0141] Some or all functions of the vehicle 600 are controlled by a computing platform 650. The computing platform 650 may include at least one third processor 651 and a second memory 652, and the third processor 651 may execute instructions 653 stored in the second memory 652.

[0142] The third processor 651 may be any conventional processor, such as a commercially available CPU. The third processor 651 may also include a graphics processor (Graphic Process Unit, GPU), a field programmable gate array (Field Programmable Gate Array, FPGA), a system on chip (System on Chip, SOC), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC) or a combination thereof.

[0143] The second memory 652 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0144] In addition to the instructions 653 , the second memory 652 may also store data, such as road maps, route information, and data such as the location, direction, and speed of the vehicle. The data stored in the second memory 652 may be used by the computing platform 650 .

[0145] In the embodiment of the present disclosure, the third processor 651 can execute instruction 653 to complete all or part of the steps of the above-mentioned method for increasing the vehicle's cruising range.

[0146] See also Figure 4 , Figure 4 1 is a block diagram of a device 1900 for increasing a vehicle's cruising range according to an exemplary embodiment. For example, the device 1900 may be provided as a server. Figure 4 , the apparatus 1900 includes a processing component 1922, which further includes one or more processors, and a memory resource represented by a third memory 1932 for storing instructions executable by the processing component 1922, such as an application. The application stored in the third memory 1932 may include one or more modules each corresponding to a set of instructions. In addition, the processing component 1922 is configured to execute instructions to perform the above-mentioned method for increasing the vehicle range.

[0147] The device 1900 may further include a power supply component 1926 configured to perform power management of the device 1900, a wired or wireless network interface 1950 configured to connect the device 1900 to a network, and an input / output interface 1958. The device 1900 may operate based on an operating system stored in the third memory 1932, such as Windows ServerTM, Mac OSXTM, UnixTM, LinuxTM, FreeBSDTM or the like.

[0148] The present disclosure also provides a computer-readable storage medium having computer program instructions stored thereon. When the program instructions are executed by a first processor, the steps of the method for increasing the cruising range of a vehicle provided by the present disclosure are implemented.

[0149] In another exemplary embodiment, a computer program product is also provided. The computer program product includes a computer program that can be executed by a programmable device. The computer program has a code portion for executing the above-mentioned method for increasing vehicle cruising range when executed by the programmable device.

[0150] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the present disclosure. This application is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and examples are to be considered as exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0151] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A method for increasing vehicle cruising range, characterized in that: The method comprises: Obtain the vehicle's current driving mode and road condition information of the road ahead; Based on the driving mode, the road condition information and the user's historical driving data, obtaining a speed range of the vehicle passing through the road section ahead, and obtaining fault information of the vehicle in the road section corresponding to the road condition information under a historical state; According to the vehicle speed range, obtaining the required output power of the motor; Determining the battery output power of the vehicle according to the required output power of the motor and the fault information; The step of obtaining a speed range of the vehicle passing through a front road section based on the driving mode, the road condition information and the user's historical driving data includes: When the driving mode is a manual driving mode, obtaining an accelerator pedal signal, a brake pedal signal and a whole vehicle operation mode of the vehicle; Determining the user's driving intention according to the accelerator pedal signal, the brake pedal signal and the user's historical driving data, wherein the driving intention includes an emergency acceleration intention and an emergency braking intention; Determining a speed range of the vehicle passing through a road section ahead according to the road condition information, the vehicle operation mode, and the driving intention; Before the step of determining the battery output power of the vehicle according to the motor required output power and the fault information, the method further includes: According to the driving intention and the vehicle speed range, obtaining a target battery power map from a plurality of preset battery power maps; The step of determining the battery output power of the vehicle according to the motor required output power and the fault information comprises: The battery output power is obtained according to the required output power of the motor, the fault information and the target battery power map.

2. The method according to claim 1, characterized in that After the step of acquiring the accelerator pedal signal and the brake pedal signal of the vehicle, the method further includes: Acquiring a first change rate of an accelerator pedal of a vehicle according to the accelerator pedal signal; determining, according to the first change rate, whether the user has the emergency acceleration intention; When it is determined that the user has the emergency acceleration intention, the acceleration of the vehicle is controlled to be within a first preset range.

3. The method according to claim 1, characterized in that After the step of acquiring the accelerator pedal signal and the brake pedal signal of the vehicle, the method further includes: acquiring a second change rate of a vehicle brake pedal according to the brake pedal signal; determining, according to the second change rate, whether the user has the emergency braking intention; When it is determined that the user has the emergency braking intention, the acceleration of the vehicle deceleration is controlled to be within a second preset range.

4. The method according to claim 1, characterized in that: After obtaining the battery output power according to the vehicle speed range, the method further includes: Get the actual distance between the vehicle's current position and the target position; According to the battery output power and the actual distance, obtaining the maximum temperature of the battery during the period when the vehicle travels from the current position to the target position; When the maximum temperature does not exceed the temperature threshold, it is prohibited to start the water cooling system during the driving of the vehicle.

5. A device for increasing vehicle cruising range, characterized in that: The device comprises: The acquisition module is used to obtain the current driving mode of the vehicle and the road condition information of the road ahead; A first obtaining module is used to obtain a speed range of the vehicle passing through the front road section and obtain fault information of the vehicle in the road section corresponding to the road condition information under a historical state based on the driving mode, the road condition information and the user's historical driving data; A second obtaining module is used to obtain the required output power of the motor according to the vehicle speed range; A determination module, configured to determine the battery output power of the vehicle according to the required output power of the motor and the fault information; The first acquisition module includes: The third submodule is used to obtain the accelerator pedal signal, brake pedal signal and the whole vehicle operation mode of the vehicle when the driving mode is the manual driving mode; The fourth submodule is used to determine the user's driving intention according to the accelerator pedal signal, the brake pedal signal and the user's historical driving data, where the driving intention includes emergency acceleration intention and emergency braking intention; The fifth submodule is used to determine the speed range of the vehicle passing through the road ahead according to the road condition information, the vehicle operation mode and the driving intention; The device for increasing the vehicle's cruising range also includes: A target acquisition module, used to acquire a target battery power map from a plurality of preset battery power maps according to a driving intention and a vehicle speed range; The second acquisition module is specifically used for: The battery output power is obtained according to the motor required output power, fault information and target battery power map.

6. A machine-readable storage medium, characterized in that: The machine-readable storage medium stores machine-executable instructions, and when the machine-executable instructions are executed by the first processor, the method for increasing the vehicle cruising range as described in any one of claims 1-4 is implemented.

7. A vehicle, characterized in that: The vehicle comprises: A second processor and a first memory, wherein the first memory stores machine executable instructions that can be executed by the second processor, and the second processor is used to execute the machine executable instructions to implement the method for increasing the vehicle cruising range as described in any one of claims 1-4.

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