Electric vehicle control system and application thereof

Abstract

The invention belongs to the technical field of electric vehicles, and particularly relates to an electric vehicle control system which comprises a driving unit, a sensor assembly, a control assembly, a control unit and a data acquisition device, the control assembly comprises a power supply switching controller, a level road controller, an uphill operation controller, a downhill operation controller, a stop controller, a data acquisition controller, a data display zero clearing controller and a brake controller; the driving unit comprises an electric quantity recycling assembly, a battery assembly and a driving motor assembly; the control unit comprises a power supply switching control module, a level road operation module, an uphill operation module, a downhill operation module, a stop module, a data acquisition module, a data display zero clearing module and a brake module which are matched with the control assembly; the control unit further comprises a sensor module and a data processing center. The corresponding operation mode can be switched according to the driving state of the vehicle, reasonable distribution of electric energy is achieved, and resources are better utilized.

Description

Technical Field

[0001] The invention belongs to the technical field of electric vehicles, and in particular relates to an electric vehicle control system and application thereof. Background Art

[0002] With the improvement of environmental awareness and the development of new energy technologies, electric vehicles have become an important direction for the transformation of the global automotive industry. The core power source of electric vehicles is the battery pack, whose performance directly determines the vehicle's range, power output and overall energy efficiency. However, existing single-power electric vehicles face a series of challenges in practical applications: Limitations of a single battery pack Traditional electric vehicles are usually equipped with a single large-capacity battery pack as the only power source source. This configuration can meet general needs when driving on straight or slightly undulating roads. However, under complex road conditions, especially during frequent uphill and downhill driving, the limitations of a single battery pack gradually become apparent. The fluctuations in cruising range caused by a single battery pack, especially the attenuation of power performance when the remaining power is reduced, may cause inconvenience to the driver in finding a charging station to replenish power to maintain the normal operation of the vehicle. In the prior art, in order to extend the vehicle's mileage, some small vehicles have added auxiliary power generation systems.

[0003] In actual use, the auxiliary power generation system and the main battery pack are overcharged and over-discharged, which affects the battery performance and service life. In addition, the drive motor of traditional electric vehicles cannot adjust the power according to the road conditions, and there will be insufficient power when encountering uphill. In the prior art, multiple drive motor groups are also set to meet the problem of insufficient power when going uphill.

[0004] When multiple battery packs and multiple drive motors are in use, there is a lack of a control system that can adjust the coordination of the battery packs and the drive motors according to actual road conditions. There is an urgent need for a control system that can adjust battery charging or discharging, realize power recovery, record data on road conditions and power during driving, and reasonably arrange the use of drive motors in coordination with road conditions. Summary of the invention

[0005] In order to solve the problems in the prior art that when electric vehicles are traveling on different road conditions, there is a lack of adjustment for the coordinated use of battery packs and drive motors according to different road conditions, resulting in overcharging or over-discharging of the battery packs, untimely power recovery, and the drive motor being unable to work reasonably according to road conditions, a control system is now needed to address the deficiencies in the prior art.

[0006] In order to achieve the above objectives, an electric vehicle control system is provided, including a driving unit for realizing vehicle driving, a sensor component, a control component, a control unit, and a data acquisition device; The control component includes a power switch controller, a flat road controller, an uphill running controller, a downhill running controller, a stop controller, a data acquisition controller, a data display clearing controller, and a brake controller; The drive unit includes a power recovery component, a battery component, and a drive motor component; The control unit includes a power switch control module, a flat road running module, an uphill running module, a downhill running module, a stop module, a data acquisition module, a data display clearing module, and a brake module that are set according to the matching control component; The control unit further includes a sensor module and a data processing center; the data processing center is respectively connected to each module and the sensor component on the control unit; The sensor component includes a slope sensor and a speed sensor installed at the bottom of the vehicle body; The control component is connected to the drive unit; The data acquisition device is connected to the drive unit and transmits data to the data processing center; The control unit switches the operation of the control component according to the vehicle driving condition and battery power status obtained by the sensor component, and switches different working modes of the drive unit to realize the driving mode of the vehicle under different road conditions.

[0007] Preferably, the power recovery component includes a rear axle drive shaft, a gearbox, a generator, and a charging supporting device; The battery component includes a first battery pack and a second battery pack; A first battery pack power display is set in the first battery pack of the battery component, and a second battery pack power display is set in the second battery pack; The first battery pack power display and the second battery pack power display are respectively connected to the data processing center; The drive motor component includes a flat road drive motor, an uphill drive motor, and a downhill drive motor; One end of the power recovery component is connected to the vehicle wheel axle, and the other end is connected to the battery component; A drive motor switch is set between the battery component and the drive motor component.

[0008] Preferably, one end of the rear axle drive shaft is connected to the vehicle wheel axle, the other end is connected to the gearbox, the gearbox is connected to the generator, the generator is connected to the charging supporting device, and the charging supporting device is connected to the battery component; An electromagnetic clutch is set between the rear axle and the gearbox; A battery total control switch is set between the charging supporting device and the battery component, and a first battery control switch and a second battery control switch are respectively directly set with the first battery pack and the second battery pack; The power recovery component and the battery component are controlled and connected through the power switch controller; The data processing center is connected to the power switch control module, and the power switch control module controls the connection of the first battery pack and the second battery pack of the battery assembly and the power recovery assembly through the power switch controller.

[0009] Preferably, the battery assembly is connected to the drive motor switch, and the drive motor switch is respectively connected to the flat road drive motor, the uphill drive motor, and the downhill drive motor; The flat road drive motor is a medium-power drive motor, the uphill drive motor is a high-power drive motor, and the downhill drive motor is a low-power drive motor.

[0010] Preferably, the data acquisition device displays the corresponding data collected by the data acquisition device through the data display screen on the vehicle, and the data display clearing module controls the data display clearing controller to clear the data on the display screen.

[0011] An application of an electric vehicle control system, the specific steps include: S1: The slope sensor and the speed sensor transmit vehicle data to the data processing center; S2: The data processing center judges the driving state of the vehicle according to the received data and starts the corresponding module; S3: During the whole process, the data center processes and controls the data acquisition controller through the data acquisition module to turn on the data acquisition device, and acquires the operation data of the power recovery assembly, the battery assembly, and the drive motor assembly.

[0012] Preferably, in the step S2, the driving state of the vehicle and the corresponding operation modules are as follows: S2-1 When the vehicle is driving on a flat road, start the flat road operation module, and the flat road operation module controls the battery assembly and the drive motor assembly to work through the flat road controller; S2-2 When the vehicle is driving uphill, start the uphill operation module, and the uphill operation module controls the battery assembly and the drive motor assembly to work through the uphill operation controller; S2-3 When the vehicle is driving downhill, start the downhill operation module, and the downhill operation module controls the power recovery assembly, the battery assembly, and the drive motor assembly to work through the downhill operation controller; S2-4 When the vehicle brakes during driving, start the brake module, and the brake module controls the start and stop of the switch between the drive motor switch and the drive motor assembly through the brake controller to realize the stop and restart of the drive motor assembly; S2-5 When the vehicle stops driving, the drive motor assembly stops working.

[0013] Preferably, in the step S2-1, when the vehicle is driving on a flat road, the flat road operation module starts the flat road controller, and the flat road controller controls the first battery pack or the second battery pack of the battery assembly to work; The drive motor switch between the first battery pack or the second battery pack, the battery assembly, and the drive motor assembly is turned on. When the drive motor switch is turned on, the flat-road drive motor operates, and the flat-road drive motor drives the vehicle to travel on a flat road.

[0014] Preferably, in step S2-2, when the vehicle is running uphill, the uphill running module starts the uphill running controller. The uphill running controller controls the first battery assembly and the second battery assembly of the battery assembly to work simultaneously. The first battery assembly and the second battery assembly are connected to the drive motor switch between the battery assembly and the drive motor assembly. When the drive motor switch is turned on, the uphill drive motor operates, and the uphill drive motor drives the vehicle to run uphill.

[0015] Preferably, in step S2-3, when the vehicle is running downhill, the downhill running module starts the downhill running controller. When the speed sensor monitors that the vehicle speed meets the recovery speed of the power recovery component, the downhill running controller controls the power recovery component to turn on. The power recovery component charges the battery pack with insufficient power according to the power conditions of the first battery pack and the second battery pack; At the same time, the other battery pack is connected to the drive motor switch between the battery assembly and the drive motor assembly. When the drive motor switch is turned on, the downhill drive motor operates, and the downhill drive motor drives the vehicle to run downhill; During the downhill running of the vehicle, according to the power conditions of the first battery pack and the second battery pack, the data processing center controls the power supply switching controller to switch the charging of the first battery pack and the second battery pack through the power supply switching control module; When the first battery pack is connected to the drive motor switch to work, the power supply switching controller starts to charge the second battery pack; When the power of the first battery pack is insufficient, it is switched to the second battery pack to connect to the drive motor switch, and the power supply switching controller starts to charge the first battery pack.

[0016] Advantages of the present invention: 1. The battery assembly is set with two battery packs. When the vehicle is in different driving modes, different battery packs are switched to supply power, ensuring the reasonable distribution of the battery packs, enabling good operation. The power recovery device switches different battery packs to supply power according to the different powers of the battery packs. The power usage and power recovery are isolated from each other, preventing over-discharge or over-charging, and making better use of resources.

[0017] 2. The control unit can switch different controllers according to the data of the sensor assembly. Different controllers turn on the corresponding power recovery component, battery assembly, and drive motor assembly to operate, rationally allocating power and reducing waste of resources.

[0018] 3. The data acquisition device can collect various data of the power recovery component, battery component, and drive motor component during vehicle driving, and save data such as power recovery and power consumption under each driving mode, providing a large amount of data for subsequent research on power recovery and the like.

[0019] 4. The automotive control system in the present invention has a simple and reasonable structure, can switch corresponding operating modes according to the driving state of the vehicle, can achieve reasonable utilization of battery power and recovery of power, isolates power consumption and power recovery from each other, prevents over-discharge or over-charge, achieves reasonable distribution of electric energy, and better utilizes resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the electric vehicle control system in the present invention; Figure 2 It is a schematic diagram of the connection of the control unit and control components in the present invention; Figure 3 It is a flow chart of the application of the control system when the vehicle is running on a flat road in the present invention; Figure 4 It is a flow chart of the application of the control system when the vehicle is running uphill in the present invention; Figure 5 It is a flow chart of the application of the control system when the vehicle is running downhill in the present invention; Figure 6 It is a flow chart of the application of the control system when the vehicle stops in the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0022] Such as Figures 1-6As shown in the figure, the present invention provides an electric vehicle control system, which includes a driving unit, a sensor assembly, a control assembly, a control unit, and a data acquisition device for realizing vehicle driving; the control assembly includes a power switching controller, a flat road controller, an uphill running controller, a downhill running controller, a stop controller, a data acquisition controller, a data display clearing controller, and a brake controller; the driving unit includes a power recovery assembly, a battery assembly, and a driving motor assembly; the control unit includes a power switching control module, a flat road running module, an uphill running module, a downhill running module, a stop module, a data acquisition module, a data display clearing module, and a brake module set according to the matching control assembly; the control unit further includes a sensor module and a data processing center; the data processing center is respectively connected to each module on the control unit and the sensor assembly; the sensor assembly includes a slope sensor and a speed sensor installed at the bottom of the vehicle body; the control assembly is connected to the driving unit; the data acquisition device is connected to the driving unit and transmits data to the data processing center; the control unit switches the operations of the control assembly according to the vehicle driving conditions and battery power status obtained by the sensor assembly, and switches different working modes of the driving unit to realize the driving modes of the vehicle under different road conditions.

[0023] The power recovery assembly includes a rear axle drive shaft, a gearbox, a generator, and a charging supporting device; the battery assembly includes a first battery pack and a second battery pack; a first battery pack power display is provided in the first battery pack of the battery assembly, and a second battery pack power display is provided in the second battery pack; the first battery pack power display and the second battery pack power display are respectively connected to the data processing center; the driving motor assembly includes a flat road driving motor, an uphill driving motor, and a downhill driving motor; one end of the power recovery assembly is connected to the vehicle wheel axle, and the other end is connected to the battery assembly; a driving motor switch is provided between the battery assembly and the driving motor assembly.

[0024] One end of the rear axle drive shaft is connected to the vehicle wheel axle, the other end is connected to the gearbox, the gearbox is connected to the generator, the generator is connected to the charging supporting device, and the charging supporting device is connected to the battery assembly; an electromagnetic clutch is provided between the rear axle and the gearbox; a battery total control switch is provided between the charging supporting device and the battery assembly, and a first battery control switch and a second battery control switch are respectively directly provided for the first battery pack and the second battery pack; the connection between the power recovery assembly and the battery assembly is controlled by the power switching controller; the data processing center is connected to the power switching control module, and the power switching control module controls the connection between the first battery pack and the second battery pack of the battery assembly and the power recovery assembly through the power switching controller.

[0025] The battery assembly is connected to the driving motor switch, and the driving motor switch is respectively connected to the flat road driving motor, the uphill driving motor, and the downhill driving motor; the flat road driving motor is a medium-power driving motor, the uphill driving motor is a high-power driving motor, and the downhill driving motor is a low-power driving motor.

[0026] The data acquisition device displays the corresponding data collected by the data acquisition device through the data display screen on the vehicle, and the data display clearing module controls the data display clearing controller to clear the data on the display screen.

[0027] An application of an electric vehicle control system, the specific steps include: S1: The slope sensor and the speed sensor transmit vehicle data to the data processing center; S2: The data processing center judges the driving state of the vehicle according to the received data and starts the corresponding module; S3: During the whole process, the data center processes and controls the data acquisition controller through the data acquisition module to turn on the data acquisition device, and acquires the operation data of the power recovery component, the battery component, and the drive motor component.

[0028] In step S2, the driving state of the vehicle and the corresponding operation modules are as follows: S2-1 When the vehicle is driving on a flat road, start the flat road operation module, and the flat road operation module controls the battery component and the drive motor component to work through the flat road controller; S2-2 When the vehicle is driving uphill, start the uphill operation module, and the uphill operation module controls the battery component and the drive motor component to work through the uphill operation controller; S2-3 When the vehicle is driving downhill, start the downhill operation module, and the downhill operation module controls the power recovery component, the battery component, and the drive motor component to work through the downhill operation controller; S2-4 When the vehicle brakes during driving, start the brake module, and the brake module controls the start and stop of the switch between the drive motor switch and the drive motor component through the brake controller to realize the stop and restart of the drive motor component; S2-5 When the vehicle stops driving, the drive motor component stops working.

[0029] In step S2-1, when the vehicle is running on a flat road, the flat-road operation module activates the flat-road controller, and the flat-road controller controls the operation of the first battery pack or the second battery pack of the battery assembly; the first battery pack or the second battery pack is connected to the drive motor switch between the battery assembly and the drive motor assembly. When the drive motor switch is turned on, the flat-road drive motor operates, and the flat-road drive motor drives the vehicle to run on a flat road. In step S2-2, when the vehicle is running uphill, the uphill operation module activates the uphill operation controller, and the uphill operation controller controls the simultaneous operation of the first battery assembly and the second battery assembly of the battery assembly. The first battery assembly and the second battery assembly are connected to the drive motor switch between the battery assembly and the drive motor assembly. When the drive motor switch is turned on, the uphill drive motor operates, and the uphill drive motor drives the vehicle to run uphill. In step S2-3, when the vehicle is running downhill, the downhill operation module activates the downhill operation controller. When the speed sensor detects that the vehicle speed meets the recovery speed of the power recovery assembly, the downhill operation controller controls the power recovery assembly to turn on. The power recovery assembly charges the battery pack with insufficient power according to the power conditions of the first battery pack and the second battery pack; at the same time, the other battery pack is connected to the drive motor switch between the battery assembly and the drive motor assembly. When the drive motor switch is turned on, the downhill drive motor operates, and the downhill drive motor drives the vehicle to run downhill; during the vehicle's downhill operation, the data processing center controls the power supply switching controller to switch the charging of the first battery pack and the second battery pack according to the power conditions of the first battery pack and the second battery pack; when the first battery pack is connected to the drive motor switch to operate, the power supply switching controller starts charging the second battery pack; when the power of the first battery pack is insufficient, it is switched to the second battery pack to connect to the drive motor switch, and the power supply switching controller starts charging the first battery pack.

[0030] During the use of the electric vehicle control system in the present invention, the data processing center of the control unit determines the vehicle running condition according to the data of the speed sensor and the slope sensor. When the vehicle is running on a flat road, the power recovery system does not operate and the power supply switching controller is not turned on, while the data acquisition device operates. The flat-road operation module activates the flat-road operation controller to turn on the flat-road operation mode. One of the battery packs in the battery assembly supplies power, and the power levels of the two battery packs in the battery assembly are both displayed. The drive motor switch is connected to the flat-road drive motor to drive the vehicle to run, and the drive motor switch is an IGBT switch. Moreover, the data acquisition device transmits the power data to the processing center, and the processing center switches the battery packs according to the power of each battery pack. When running on a flat road, the data acquisition device collects data such as the running time of the flat-road operation.

[0031] When the vehicle is running uphill, the power recovery system does not work, the power switch controller is not turned on, the data acquisition device works, the uphill running module starts the uphill running controller to turn on the uphill running mode, two battery packs in the battery assembly supply power, the power of both battery packs in the battery assembly is displayed, and the drive motor switch is connected to the uphill drive motor to drive the vehicle to run. The data acquisition device transmits the power data to the processing center, and the processing center monitors the power of each battery pack. When running uphill, the data acquisition device collects data such as the uphill running time.

[0032] When the vehicle is running downhill, the power recovery system works, the power switch controller is turned on, the data acquisition device works, the downhill running module starts the downhill running controller to turn on the downhill running mode, and one of the battery packs in the battery assembly supplies power. For example, the first battery pack supplies power, the power of both battery packs in the battery assembly is displayed, and the drive motor switch is connected to the downhill drive motor to drive the vehicle to run. When the speed sensor monitors that the vehicle speed meets the recovery speed of the power recovery component, the power recovery system works to charge the second battery pack, and the data acquisition device transmits the power data to the processing center. The processing center monitors the power of each battery pack. When the power of the first battery pack is insufficient, the power switch controller switches to charge the second battery pack, and the power recovery system charges the first battery pack. When running downhill, the data acquisition device collects the downhill running time, the generator power of the power recovery system when going downhill, and calculates data such as the recovered power.

[0033] When the vehicle brakes during flat road running, uphill running, or downhill running, the brake module controls the start and stop of the switch between the drive motor switch and the drive motor assembly through the brake controller to disconnect the connection between the battery assembly and the drive motor assembly, realizing the stop of the drive motor assembly. When the brake is cancelled, the switch is turned on to restore the connection between the battery assembly and the drive motor assembly, realizing the start of the drive motor assembly, and the vehicle resumes its original driving state. During braking, other components during flat road running, uphill running, and downhill running remain in the working state.

[0034] When the vehicle stops, the power recovery system, the power switch controller, the data acquisition device work, and the drive motor assembly does not work.

[0035] In addition to being connected to the generator, the input end of the charging supporting equipment in the power recovery system is also provided with an external charging interface. When the power recovery system does not work and does not charge the battery assembly, the battery assembly can be charged by connecting an external charger through the external charging interface.

[0036] During a trip, the data acquisition device displays the corresponding data collected by the data acquisition device through the data display screen on the vehicle. After a trip ends, the data display clearing module can control the data display clearing controller to clear the data on the display screen. When the next trip starts, new data is redisplayed. It should be noted that clearing the data on the display screen does not mean deleting the data. All data during operation has been saved to the data processing center, and the data in the data processing center can be exported for viewing and statistics.

[0037] The control components in this control system can be automatically controlled and can also be manually controlled when necessary.

Claims

1. An electric vehicle control system, characterized in that: It includes a driving unit, a sensor component, a control component, a control unit, and a data acquisition device for realizing vehicle driving; The control components include power switching controller, flat road controller, uphill operation controller, downhill operation controller, stop controller, data acquisition controller, data display clearing controller, and brake controller; The drive unit includes an electric power recovery component, a battery component, and a drive motor component; The control unit includes a power switching control module, a flat road operation module, an uphill operation module, a downhill operation module, a stop module, a data acquisition module, a data display clearing module, and a brake module that match the control component settings; The control unit also includes a sensor module and a data processing center; the data processing center is respectively connected to each module and sensor component on the control unit; The sensor assembly includes a slope sensor and a speed sensor mounted on the bottom of the vehicle body; The control assembly is connected to the drive unit; The data acquisition device is connected to the drive unit and transmits the data to the data processing center; The control unit switches the operation of the control component according to the vehicle driving condition and battery power status obtained by the sensor component, switches the drive unit to different working modes, and realizes the driving mode of the vehicle under different road conditions.

2. An electric vehicle control system according to claim 1, characterized in that: The power recovery components include the rear axle drive shaft, gearbox, generator, and charging equipment; The battery assembly includes a first battery group and a second battery group; A first battery pack in the battery assembly is provided with a first battery pack power indicator, and a second battery pack power indicator is provided with a second battery pack; The first battery pack power indicator and the second battery pack power indicator are respectively connected to the data processing center; The drive motor assembly includes a flat road drive motor, an uphill drive motor, and a downhill drive motor; One end of the power recovery component is connected to the vehicle wheel axle, and the other end is connected to the battery component; A drive motor switch is arranged between the battery assembly and the drive motor assembly.

3. An electric vehicle control system according to claim 2, characterized in that: One end of the rear axle drive shaft is connected to the vehicle wheel axle, and the other end is connected to the gearbox, the gearbox is connected to the generator, the generator is connected to the charging equipment, and the charging equipment is connected to the battery assembly; An electromagnetic clutch is provided between the rear axle and the gearbox; A battery master control switch is provided between the charging supporting equipment and the battery assembly, and a first battery control switch and a second battery control switch are directly provided with the first battery pack and the second battery pack respectively; The power recovery component and the battery component are connected via a power switching controller; The data processing center is connected to the power switching control module, and the power switching control module controls the connection between the first battery group, the second battery group and the power recovery component of the battery assembly through the power switching controller.

4. An electric vehicle control system according to claim 2, characterized in that: The battery assembly is connected to the drive motor switch, and the drive motor switch is respectively connected to the flat road drive motor, the uphill drive motor, and the downhill drive motor; The flat road driving motor is a medium-power driving motor, the uphill driving motor is a high-power driving motor, and the downhill driving motor is a low-power driving motor.

5. The electric vehicle control system according to claim 1, characterized in that: The data acquisition device displays the corresponding data collected by the data acquisition device through the data display screen on the vehicle, and the data display clearing module controls the data display clearing controller to realize clearing of the data on the display screen.

6. The application of an electric vehicle control system according to claim 1, characterized in that: The specific steps include: S1: The slope sensor and speed sensor transmit vehicle data to the data processing center; S2: The data processing center determines the driving status of the vehicle based on the received data and starts the corresponding module; S3: During the whole process, the data center controls the data acquisition controller through the data acquisition module to start the data acquisition device to collect the operating data of the power recovery component, the battery component, and the drive motor component.

7. The application of an electric vehicle control system according to claim 6, characterized in that: In step S2, the driving state of the vehicle and the corresponding operating modules are as follows: S2-1 The vehicle is driving on a flat road, and the flat road operation module is started. The flat road operation module controls the battery assembly and the drive motor assembly to work through the flat road controller; S2-2 The vehicle drives uphill, and the uphill operation module is started. The uphill operation module controls the battery assembly and the drive motor assembly to work through the uphill operation controller; S2-3 The vehicle travels downhill, and the downhill operation module is started. The downhill operation module controls the operation of the power recovery component, the battery component, and the drive motor component through the downhill operation controller; S2-4 When the vehicle brakes during driving, the brake module is started, and the brake module controls the start and stop of the switch between the drive motor switch and the drive motor assembly through the brake controller to stop and restart the drive motor assembly; S2-5 The vehicle stops running and the drive motor assembly stops working.

8. The application of an electric vehicle control system according to claim 7, characterized in that: In the step S2-1, when the vehicle is traveling on a flat road, the flat road operation module starts the flat road controller, and the flat road controller controls the first battery pack or the second battery pack of the battery assembly to operate; The first battery pack or the second battery pack is connected to a drive motor switch between the battery assembly and the drive motor assembly. When the drive motor switch is turned on, the flat road drive motor works, and the flat road drive motor drives the vehicle to travel on a flat road.

9. The application of an electric vehicle control system according to claim 7, characterized in that: In step S2-2, when the vehicle runs uphill, the uphill running module starts the uphill running controller, and the uphill running controller controls the first battery assembly and the second battery assembly of the battery assembly to work simultaneously. The first battery assembly and the second battery assembly are connected to the drive motor switch between the battery assembly and the drive motor assembly. When the drive motor switch is turned on, the uphill drive motor works, and the uphill drive motor drives the vehicle to run uphill.

10. The application of an electric vehicle control system according to claim 7, characterized in that: In step S2-3, when the vehicle is running downhill, the downhill running module starts the downhill running controller, and when the speed sensor detects that the vehicle speed meets the recovery speed of the power recovery component, the downhill running controller controls the power recovery component to start, and the power recovery component charges the battery pack with insufficient power according to the power status of the first battery pack and the second battery pack; At the same time, another battery pack is connected to the drive motor switch between the battery assembly and the drive motor assembly, the drive motor switch is turned on, the downhill drive motor works, and the downhill drive motor drives the vehicle to run downhill; When the vehicle is running downhill, the data processing center controls the power switching controller to switch the charging of the first battery pack and the second battery pack through the power switching control module according to the power status of the first battery pack and the second battery pack; When the first battery pack is connected to the drive motor switch to work, the power switching controller starts charging the second battery pack; When the power of the first battery pack is insufficient, the second battery pack is switched to connect the drive motor switch, and the power switching controller starts charging the first battery pack.

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