CN117022143A

CN117022143A - Control method and device for extended range electric automobile, electronic equipment and medium

Info

Publication number: CN117022143A
Application number: CN202311175380.8A
Authority: CN
Inventors: 金东旭; 孙昊; 张强
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Remote New Energy Commercial Vehicle Group Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Remote New Energy Commercial Vehicle Group Co Ltd
Priority date: 2023-09-12
Filing date: 2023-09-12
Publication date: 2023-11-10

Abstract

The application provides a control method and device of an extended range electric automobile, electronic equipment and a medium. The method comprises the following steps: responding to the alternating current power supply request, and if the maximum allowable use power of the current direct current-direct current conversion module is calculated to be larger than a preset first power threshold value, transmitting the maximum allowable use power of the current direct current-direct current conversion module to the direct current-direct current conversion module; if the current DC-DC conversion output voltage is not greater than the preset voltage threshold, calculating the maximum allowable power value of the current DC-AC conversion module and sending the maximum allowable power value to the DC-AC conversion module so as to instruct the DC-AC conversion module to execute DC-AC conversion processing; and if the current DC-DC conversion output voltage is greater than a preset voltage threshold, indicating the DC-AC conversion module to execute DC-AC conversion processing and outputting an AC power supply signal. The method of the application can avoid the waste of direct current-direct current conversion resources and ensure the reliability of the system.

Description

Control method and device for extended range electric automobile, electronic equipment and medium

Technical Field

The present application relates to electric vehicle technologies, and in particular, to a control method and apparatus for an extended range electric vehicle, an electronic device, and a medium.

Background

Along with the development of science and technology, the new energy extended-range electric automobile is continuously improved in the science and technology level and the intelligent level, so that the energy-saving effect is remarkable, the comprehensive energy utilization rate is high, and the environmental emission benefit is obvious.

In the prior art, a range-extending electric automobile converts high-voltage direct current into low-voltage direct current through a direct current-direct current conversion module and outputs the low-voltage direct current to a low-voltage storage battery for charging, so that power is supplied to a controller of the range-extending electric automobile, and normal operation of the automobile is ensured. However, after the storage battery is fully charged, the low-voltage direct current output by the direct current-direct current conversion module cannot be utilized, so that the utilization rate of the direct current-direct current conversion module is low, and power consumption waste is generated.

Disclosure of Invention

The application provides a control method, a control device, electronic equipment and a control medium of an extended-range electric automobile, which are used for improving the utilization rate of a direct current-direct current conversion module and avoiding resource waste.

In one aspect, the application provides a control method of an extended range electric vehicle, which is applied to an extended range electric vehicle control system, wherein the extended range electric vehicle control system comprises: the device comprises a direct current-direct current conversion module, a direct current-alternating current conversion module and a storage battery; the input end of the direct current-direct current conversion module is connected to a direct current bus, and the input ends of the storage battery and the direct current-direct current conversion module are both connected to the output end of the direct current-direct current conversion module; the method comprises the following steps:

Receiving an alternating current power supply request sent by a central control module;

responding to the alternating current power supply request, calculating the maximum allowable use power of the current direct current-direct current conversion module, if the maximum allowable use power of the current direct current-direct current conversion module is larger than a preset first power threshold value, sending the maximum allowable use power of the current direct current-direct current conversion module to the direct current-direct current conversion module so as to instruct the direct current-direct current conversion module to execute direct current-direct current conversion processing based on the maximum allowable use power of the current direct current-direct current conversion module and output direct current-direct current conversion output voltage;

if the current DC-DC conversion output voltage is not greater than a preset voltage threshold, calculating a maximum allowable power value of the current DC-AC conversion module according to the actual use power of the current DC-DC conversion module and the DC-DC conversion output voltage, and sending the calculated maximum allowable power value of the current DC-AC conversion module to the DC-AC conversion module to instruct the DC-AC conversion module to execute DC-AC conversion processing based on the received maximum allowable use power of the current DC-AC conversion module and output an AC power supply signal;

And if the current DC-DC conversion output voltage is greater than a preset voltage threshold, indicating the DC-AC conversion module to execute DC-AC conversion processing and outputting an AC power supply signal.

Optionally, before calculating the maximum allowable power for use of the dc-dc conversion module in response to the ac power supply request, the method further includes:

judging whether a fault belonging to a preset fault type exists at present, if so, sending a fault code and repeatedly executing the step of judging whether the fault belonging to the preset fault type exists at present; if not, judging whether the alternating current power supply request is effective; any fault in the fault type represents that the work of the direct current-direct current conversion module and the direct current-alternating current conversion module is forbidden;

the method for calculating the maximum allowable power for use of the DC-DC conversion module in response to the AC power supply request comprises the following steps: if the alternating current power supply request is valid, responding to the alternating current power supply request, and calculating the maximum allowable power for use of the current direct current-direct current conversion module;

after the judging whether the alternating current power supply request is valid, the method further comprises the following steps: and if the alternating current power supply request is invalid, not executing the processing.

Optionally, the extended range electric automobile control system further includes: a power cell and a super capacitor connected to the dc bus; the calculating the maximum allowable power for use of the dc-dc conversion module includes:

acquiring the current maximum allowable discharge power of the super capacitor and the current maximum allowable discharge power of the power battery;

and calculating the sum of the maximum allowable discharge power of the current super capacitor and the maximum allowable discharge power of the power battery to obtain the maximum allowable use power of the current direct current-direct current conversion module.

Optionally, the method further comprises:

calculating the current maximum allowable charging power of the whole vehicle, and if the current maximum allowable charging power of the whole vehicle is not greater than a preset second power threshold value, sending a fault code and recalculating the current maximum allowable charging power of the whole vehicle; if the current maximum allowable charging power of the whole vehicle is larger than the second power threshold, calculating the current maximum allowable feedback power of the whole vehicle, and calculating the current maximum feedback torque of the driving motor according to the current maximum allowable feedback power of the whole vehicle;

determining a driving motor feedback torque according to the current working condition of the whole vehicle and the current maximum feedback torque of the driving motor, and sending the driving motor feedback torque to the driving motor so that the driving motor executes the driving motor feedback torque; wherein, the feedback torque of the driving motor is not greater than the current maximum feedback torque of the driving motor; and determining the charging power of the generator of the extended range electric automobile control system according to the current working condition of the whole automobile, and sending the charging power of the generator to the generator so that the generator can charge according to the charging power of the generator.

Optionally, the extended range electric automobile control system further includes: the power battery, the super capacitor, the refrigeration module and the heating module are connected to the direct current bus; the calculating the current maximum allowable charging power of the whole vehicle comprises the following steps:

obtaining the current maximum allowable discharge power of the super capacitor, the maximum allowable discharge power of the power battery and the actual use power of the accessories; the accessory comprises a direct current-direct current conversion module, a refrigeration module and a heating module;

and calculating the sum of the current maximum allowable discharge power of the super capacitor, the maximum allowable discharge power of the power battery and the actual use power of the accessories to obtain the current maximum allowable charge power of the whole vehicle.

Optionally, the method further comprises:

calculating the maximum allowable discharge power of the current driving motor and the maximum allowable power of the accessory, and if the maximum allowable discharge power of the current driving motor is not greater than a preset third power threshold value, sending a fault code and recalculating the maximum allowable discharge power of the current driving motor; if the maximum allowable discharge power of the current driving motor is larger than a preset third power threshold, calculating the maximum driving torque of the current driving motor according to the maximum allowable discharge power of the current driving motor;

Determining driving torque of a driving motor according to the current working condition of the whole vehicle and the current maximum driving torque of the driving motor, and sending the driving torque of the driving motor to the driving motor, wherein the driving torque of the driving motor is not greater than the current maximum driving torque of the driving motor; and sending a current accessory maximum allowable power to the accessory so that the accessory can execute driver operation according to the current accessory maximum allowable power.

Optionally, the extended range electric automobile control system further includes: the power battery, the super capacitor, the generator, the refrigeration module and the heating module are connected to the direct current bus; the calculating the current maximum allowable discharge power of the driving motor and the maximum allowable power of the accessories comprises the following steps:

obtaining the current maximum allowable discharge power of the super capacitor, the maximum allowable discharge power of the power battery, the actual power generation power of the generator and the actual use power of accessories; the accessory comprises a direct current-direct current conversion module, a refrigeration module and a heating module;

calculating the maximum allowable discharge power of the current super capacitor, the sum of the maximum allowable discharge power of the power battery and the actual power generation power of the generator, and subtracting the actual use power of the accessory to obtain the maximum allowable discharge power of the current driving motor;

And calculating the sum of the maximum allowable discharge power of the current super capacitor, the maximum allowable discharge power of the power battery and the actual power generation power of the generator to obtain the maximum allowable power of the current accessory.

On the other hand, the application provides a control device of an extended range electric vehicle, which is applied to an extended range electric vehicle control system, and the extended range electric vehicle control system comprises: the device comprises a direct current-direct current conversion module, a direct current-alternating current conversion module and a storage battery; the input end of the direct current-direct current conversion module is connected to a direct current bus, and the input ends of the storage battery and the direct current-direct current conversion module are both connected to the output end of the direct current-direct current conversion module; the device comprises:

the receiving module is used for receiving the alternating current power supply request sent by the central control module;

the calculating module is used for responding to the alternating current power supply request, calculating the maximum allowable use power of the current direct current-direct current conversion module, if the maximum allowable use power of the current direct current-direct current conversion module is larger than a preset first power threshold value, sending the maximum allowable use power of the current direct current-direct current conversion module to the direct current-direct current conversion module so as to instruct the direct current-direct current conversion module to execute direct current-direct current conversion processing based on the maximum allowable use power of the current direct current-direct current conversion module and output direct current-direct current conversion output voltage;

Optionally, the computing module is further configured to:

Optionally, the extended range electric automobile control system further includes: a power cell and a super capacitor connected to the dc bus; the computing module is specifically configured to:

Optionally, the apparatus further includes:

the feedback module is used for calculating the current maximum allowable charging power of the whole vehicle, and if the current maximum allowable charging power of the whole vehicle is not greater than a preset second power threshold value, a fault code is sent and the current maximum allowable charging power of the whole vehicle is recalculated; if the current maximum allowable charging power of the whole vehicle is larger than the second power threshold, calculating the current maximum allowable feedback power of the whole vehicle, and calculating the current maximum feedback torque of the driving motor according to the current maximum allowable feedback power of the whole vehicle;

Optionally, the extended range electric automobile control system further includes: the power battery, the super capacitor, the refrigeration module and the heating module are connected to the direct current bus; the feedback module is specifically configured to:

Optionally, the apparatus further includes:

the discharging module is used for calculating the maximum allowable discharging power of the current driving motor and the maximum allowable discharging power of the accessory, and if the maximum allowable discharging power of the current driving motor is not greater than a preset third power threshold value, a fault code is sent and the maximum allowable discharging power of the current driving motor is recalculated; if the maximum allowable discharge power of the current driving motor is larger than a preset third power threshold, calculating the maximum driving torque of the current driving motor according to the maximum allowable discharge power of the current driving motor;

Optionally, the extended range electric automobile control system further includes: the power battery, the super capacitor, the generator, the refrigeration module and the heating module are connected to the direct current bus; the discharging module is specifically used for:

In yet another aspect, the present application provides an electronic device, comprising: a processor, and a memory communicatively coupled to the processor; the memory stores computer-executable instructions; the processor executes computer-executable instructions stored in the memory to implement the method as described above.

In yet another aspect, the application provides a computer-readable storage medium having stored therein computer-executable instructions for performing the method as described above when executed by a processor.

In the control method, the device, the electronic equipment and the medium of the extended-range electric automobile, the fault elimination is carried out by calculating the maximum allowable power of the current direct current-direct current conversion module and comparing the maximum allowable power with the preset first power threshold; when the maximum allowable use power of the current direct current-direct current conversion module is larger than a preset first power threshold value, controlling the direct current-direct current conversion module to execute direct current-direct current conversion processing based on the maximum allowable use power of the current direct current-direct current conversion module; and the feeding condition of the storage battery is judged according to the current direct current-direct current conversion output voltage, when the storage battery cannot be normally charged due to the fact that the current direct current-direct current conversion output voltage is too low, the power consumption of the direct current-alternating current conversion module which is connected with the storage battery at the output end of the direct current-direct current conversion module is limited, so that the storage battery is recovered to be normally charged, and under the condition that the direct current-alternating current conversion module is connected to the output end of the direct current-direct current conversion module, the power supply of the storage battery for the whole vehicle controller is ensured under the condition that the utilization rate of the direct current-direct current conversion module is effectively improved, and the reliability of a range-extended electric vehicle control system is improved.

Drawings

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

Fig. 1 is a schematic structural diagram illustrating a range-extending electric vehicle control system according to a first embodiment of the present application;

fig. 2 is a schematic flow chart illustrating a control method of an extended range electric vehicle according to an embodiment of the present application;

fig. 3 is a schematic flow chart illustrating a control method of another extended-range electric vehicle according to the first embodiment of the present application;

fig. 4 is a schematic flow chart illustrating a control method of another extended-range electric vehicle according to the first embodiment of the present application;

fig. 5 is a schematic structural diagram illustrating a control device of an extended range electric vehicle according to a second embodiment of the present application;

fig. 6 is a schematic structural diagram illustrating control electronics of an extended range electric vehicle according to a third embodiment of the present application.

Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.

The modules in the present application refer to functional modules or logic modules. It may be in the form of software, the functions of which are implemented by the execution of program code by a processor; or may be in hardware. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The technical scheme of the application is illustrated in the following specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

Example 1

The embodiment provides a control method of an extended range electric vehicle, which is applied to an extended range electric vehicle control system, and the extended range electric vehicle control system can comprise:

the device comprises a direct current-direct current conversion module, a direct current-alternating current conversion module and a storage battery; the input end of the direct current-direct current conversion module is connected to the direct current bus, and the input ends of the storage battery and the direct current-direct current conversion module are both connected to the output end of the direct current-direct current conversion module.

Fig. 1 is a schematic structural diagram of an extended range electric vehicle control system according to an embodiment of the present application, as shown in fig. 1, the extended range electric vehicle control system includes: the input end of the direct current-direct current conversion module is connected to the high-voltage direct current bus and used for converting high-voltage direct current into low-voltage direct current; the input end of the storage battery is connected with the output end of the direct current-direct current conversion module through a low-voltage direct current bus and is used for storing low-voltage direct current and supplying power to the vehicle-mounted controller by utilizing the stored low-voltage direct current, wherein the vehicle-mounted controller CAN comprise a whole vehicle controller and is used for controlling other modules of the extended range electric vehicle control system through a meter CAN H and a meter CAN L signal line; the input end of the direct current-alternating current conversion module is connected with the output end of the direct current-direct current conversion module through a low-voltage direct current bus, and the output end of the direct current-alternating current conversion module is connected with alternating current electric equipment through an alternating current bus and is used for converting low-voltage direct current into alternating current to supply power for the alternating current electric equipment. The alternating current electric equipment can be various, for example, the alternating current electric equipment can comprise a vehicle-mounted small refrigerator, an electric cooker, a water heater and the like, and also can be a notebook computer, a mobile power supply and the like, so that various requirements of a driver can be met. The CAN is a communication protocol of a vehicle-mounted computer, and the CAN communication of the instrument adopts 2 ports, namely an instrument CAN H and an instrument CAN L. The instrument CAN H is a fast CAN data signal and CAN be 500K/S; the instrument CAN L is a low-gear CAN data signal and CAN be 250K/S. CAN communication uses the voltage difference between CAN L and CAN H to signal. In order to ensure the normal operation of the vehicle controller, the direct current-direct current conversion module is always in a working state, and the storage battery and the direct current-alternating current conversion module are connected to the output end of the direct current-direct current conversion module, so that the low-voltage direct current output by the direct current-direct current conversion module can be utilized when the storage battery is fully charged, and the power consumption waste is reduced. Meanwhile, compared with the direct connection of the direct current-alternating current conversion module to the high-voltage direct current bus, the direct current-alternating current conversion module converts high-voltage direct current into alternating current, the direct current-alternating current conversion module in the scheme converts low-voltage direct current into alternating current, the direct current-alternating current conversion module is lower in requirement, and in practical application, elements with lower price can be used for manufacturing the direct current-alternating current conversion module, so that cost is effectively saved.

Fig. 2 is a flowchart illustrating a control method of an extended-range electric vehicle according to an embodiment of the application. As shown in fig. 2, the control method of the extended-range electric vehicle provided in this embodiment may include:

s201, receiving an alternating current power supply request sent by a central control module;

s202, responding to the alternating current power supply request, calculating the maximum allowable use power of the current direct current-direct current conversion module, if the maximum allowable use power of the current direct current-direct current conversion module is larger than a preset first power threshold, sending the maximum allowable use power of the current direct current-direct current conversion module to the direct current-direct current conversion module so as to instruct the direct current-direct current conversion module to execute direct current-direct current conversion processing based on the maximum allowable use power of the current direct current-direct current conversion module, and outputting direct current-direct current conversion output voltage;

s203, if the current DC-DC conversion output voltage is not greater than a preset voltage threshold, calculating a maximum allowable power value of the current DC-AC conversion module according to the actual use power of the current DC-DC conversion module and the DC-DC conversion output voltage, and sending the calculated maximum allowable power value of the current DC-AC conversion module to the DC-AC conversion module to instruct the DC-AC conversion module to execute DC-AC conversion processing based on the received maximum allowable use power of the current DC-AC conversion module and output an AC power supply signal;

And S204, if the current DC-DC conversion output voltage is greater than a preset voltage threshold, indicating the DC-AC conversion module to execute DC-AC conversion processing and outputting an AC power supply signal.

In practical applications, the execution body of the embodiment may be a control device of an extended-range electric vehicle, and the device may be implemented by a computer program, for example, application software, etc.; alternatively, the computer program may be implemented as a medium storing a related computer program, for example, a usb disk, a cloud disk, or the like; still alternatively, it may be implemented by a physical device, e.g., a chip, a server, etc., integrated with or installed with the relevant computer program.

Specifically, the control device of the extended range electric automobile controls the whole vehicle controller to receive an alternating current power supply request sent by the central control module, wherein the alternating current power supply request is triggered by a driver through the central control module. In practical application, a driver CAN select to use alternating current power supply through the display screen of the central control module, and still as shown in fig. 1, the central control module CAN send a central control power supply request to the whole vehicle controller through the signal lines of the instrument CAN H and the instrument CAN L. The vehicle control unit responds to the alternating current power supply request, calculates the maximum allowable use power of the current direct current-direct current conversion module, compares the maximum allowable use power of the current direct current-direct current conversion module with a preset first power threshold value, and if the maximum allowable use power of the current direct current-direct current conversion module is not greater than the preset first power threshold value, the first power threshold value can be the lowest calibration threshold power of the direct current-direct current conversion module, sends out a fault notification and controls the direct current-direct current conversion module to stop working; if the maximum allowable use power of the current direct current-direct current conversion module is larger than a preset first power threshold, the direct current-direct current conversion module can work normally, and the calculated maximum allowable use power of the current direct current-direct current conversion module is sent to the direct current-direct current conversion module. After receiving the maximum allowable use power of the current direct current-direct current conversion module, the direct current-direct current conversion module executes direct current-direct current conversion processing, and outputs direct current-direct current conversion output voltage to the storage battery and the direct current-direct current conversion module, wherein the actual use power of the direct current-direct current conversion module does not exceed the calculated maximum allowable use power of the current direct current-direct current conversion module, and the actual use power and the working state of the current direct current-direct current conversion module are fed back to the whole vehicle controller. The vehicle controller compares the current direct current-direct current conversion output voltage with a preset voltage threshold, wherein the voltage threshold can be a feed voltage calibration threshold, if the current direct current-direct current conversion output voltage is not larger than the preset voltage threshold, the current feed of the storage battery is abnormal, the use power of the direct current-direct current conversion module needs to be limited, and the direct current-direct current conversion output voltage value is improved, so that the storage battery can normally supply power to the vehicle controller. Specifically, according to the actual power of the current dc-dc conversion module and the dc-dc conversion output voltage, the maximum allowable power value of the current dc-ac conversion module is calculated, so that when the dc-dc conversion module performs dc-dc conversion with the actual power of the current dc-dc conversion module, the output dc-dc conversion output voltage can be greater than a preset voltage threshold. And sending the calculated maximum allowable power value of the current DC-AC conversion module to the DC-AC conversion module so that the actual use power does not exceed the calculated maximum allowable power value of the DC-AC conversion module when the DC-AC conversion module executes the DC-AC conversion processing. If the current DC-DC conversion output voltage is larger than the preset voltage threshold, the DC-AC conversion module is directly instructed to execute DC-AC conversion processing, and an AC power supply signal is output to supply power to the AC electric equipment. In one possible implementation manner, the output end of the direct current-alternating current conversion module is connected to an alternating current power supply socket, the direct current-alternating current conversion module outputs 220V alternating current to supply power for alternating current electric equipment connected to the alternating current power supply socket, and actual using power and working mode of the current direct current-alternating current conversion module are fed back to the whole vehicle controller.

In the example, the direct current-direct current conversion module is used for supplying power to the storage battery and the direct current-alternating current conversion module, whether the direct current-direct current conversion module can work normally is judged based on the maximum allowable use power of the current direct current-direct current conversion module, the feeding condition of the storage battery is judged based on the current direct current-direct current conversion output voltage, and when the feeding of the storage battery is abnormal, the direct current-alternating current conversion module is limited to use electricity, so that the storage battery has enough electric quantity to support the normal operation of the whole vehicle controller, and the reliability of a range-extending electric vehicle control system is improved while the waste of power consumption is reduced.

In order to avoid a failure in which execution of ac power supply is prohibited after responding to an ac power supply request, a failure determination may be performed in advance. In one example, before the calculating the maximum allowable power for use of the dc-dc conversion module in response to the ac power supply request, the method further includes:

Specifically, after receiving the ac power supply request, judging whether each module of the extended-range electric vehicle control system has a fault belonging to a preset fault type, wherein any fault under the fault type represents that the dc-dc conversion module and the dc-ac conversion module are forbidden to work, for example, a power battery or a super capacitor has a fault, and the output voltage is too low. If yes, sending a fault code and repeating the judging step, and continuously and repeatedly executing the judgment until the judging result is that no fault belonging to the preset fault type exists; wherein, different faults correspond to different fault codes, and a driver can acquire fault points of the electric automobile according to the fault code list and execute corresponding maintenance treatment; if not, judging whether the alternating current power supply request is effective; if the power is effective, responding to an alternating current power supply request, and calculating the maximum allowable power for use of the direct current-direct current conversion module; if not, the processing is not performed. In practical applications, determining whether the ac power supply request is valid may include determining whether the ac power supply request is valid in combination with a vehicle working condition, for example, if it is detected that the current vehicle is in a running state, determining that the ac power supply request is invalid; assuming that the current vehicle is detected to be in a stationary start state, it is determined that the ac power supply request is valid.

In this example, by judging in advance whether to affect the failure of the ac power supply and whether the received ac power supply request is valid before responding to the ac power supply request, the failure of prohibiting the execution of the ac power supply in the process of executing the ac power supply is avoided, and the reliability of the extended-range electric vehicle control system is improved in response to the invalid ac power supply request.

As also shown in fig. 1, in one example, the extended range electric vehicle control system further includes: a power cell and a super capacitor connected to the dc bus; wherein the power cells and supercapacitors may power other modules connected to the high voltage dc bus, including the dc-dc conversion module.

The calculating the maximum allowable power for use of the dc-dc conversion module includes:

In the extended-range electric vehicle control system, the direct current-direct current conversion module has the highest electricity utilization priority, so that the maximum allowable use power of the direct current-direct current conversion module is calculated, and the maximum power supply power in the extended-range electric vehicle control system can be calculated. Specifically, the vehicle controller obtains the maximum allowable discharge power of the current super capacitor reported by the super capacitor and the maximum allowable discharge power of the current power battery reported by the power battery, calculates the maximum allowable discharge power of the current super capacitor and the maximum allowable discharge power of the current power battery, and obtains the maximum allowable use power of the current direct current-direct current conversion module. The maximum allowable discharge power of the super capacitor is a variable, and the size of the super capacitor is influenced by the super capacitor material, the maximum discharge multiple and the stored electric quantity of the current super capacitor, and the maximum allowable discharge power of the power battery is the same.

In this example, the sum of the maximum allowable discharge power of the current super capacitor and the maximum allowable discharge power of the power battery is calculated and used as the maximum allowable use power of the current dc-dc conversion module, and the power is preferentially supplied to the dc-dc conversion module, so that the vehicle controller is normally supplied with power, and the vehicle controller is normally operated.

The above describes a control method for controlling the electric vehicle to implement ac power supply, and in practical application, the electric vehicle may have various working modes, for example, feedback charging may also be included. The electric automobile feedback charging refers to that the motor retransmits energy generated by the motor to the battery energy storage system during deceleration or braking, and is also called feedback braking or regenerative braking. In order to control the electric vehicle to implement feedback charging, fig. 3 is a flow chart of another control method of an extended-range electric vehicle according to an embodiment of the present application, as shown in fig. 3, in an example, the method further includes:

Specifically, calculating the current maximum allowable charging power of the whole vehicle and comparing the current maximum allowable charging power with a preset second power threshold, wherein the second power threshold can be the lowest charging power protection threshold, and if the current maximum allowable charging power of the whole vehicle is not greater than the preset second power threshold, transmitting a fault code and recalculating the current maximum allowable charging power of the whole vehicle until the current maximum allowable charging power of the whole vehicle is greater than the preset second power threshold; if the current maximum allowable charge power of the whole vehicle is larger than the second power threshold, calculating the current maximum allowable feedback power of the whole vehicle, wherein the current maximum allowable feedback power of the whole vehicle can be obtained by subtracting the current charge power of the generator from the current maximum allowable charge power of the whole vehicle, and calculating the current maximum feedback torque of the driving motor according to the current maximum allowable feedback power of the whole vehicle and the current rotating speed of the driving motor. According to the current whole vehicle working condition and the current maximum feedback torque of the driving motor, the feedback torque of the driving motor is determined and sent to the driving motor, specifically, the feedback torques of the driving motor corresponding to different vehicle speeds, power batteries, super-capacitor electric quantity and braking force can be preset, the corresponding feedback torque of the driving motor is selected based on the current whole vehicle working condition, and the feedback torque of the driving motor is not more than the current maximum feedback torque of the driving motor. And the driving motor executes feedback torque of the driving motor and feeds back the information of the actual charging power and the actual torque of the current driving motor. Still as shown in fig. 1, the extended range electric vehicle control system further includes a motor controller connected to the high voltage dc bus and a generator, the motor controller being connected to the drive motor via the ac bus, the generator being physically connected to the engine. In practical application, the whole vehicle controller can send the feedback torque of the driving motor to the motor controller, and the motor controller receives the feedback torque value of the driving motor and then performs a series of calculations internally to finally meet the torque requirement of the whole vehicle controller and control the operation of the driving motor. According to the current whole-vehicle working condition, the charging power of the generator is determined and sent to the generator, and in practical application, the charging power of the generator can be determined by combining the system efficiency of the range extender (namely the generator and the engine) and NVH (Noise, vibration, harshness, namely noise, vibration and harshness), and the charging power of the generator which can enable the system efficiency of the range extender to be higher and has lower NVH is selected. And the generator performs charging according to the charging power of the generator and feeds back the actual charging power of the current generator to the whole vehicle controller.

In the example, whether the current maximum allowable charging power of the whole vehicle is larger than a preset second power threshold value is judged, whether faults exist or not is obtained, feedback torque of the driving motor is obtained based on the current maximum allowable charging power of the whole vehicle and the working condition of the whole vehicle, and the driving motor is controlled; and calculating the charging power of the generator, and controlling the generator to generate electricity, thereby realizing the control of the feedback charging process of the electric automobile.

The current mode of obtaining the maximum allowable charging power of the whole vehicle may be various, and in one example, as shown in fig. 1, the extended-range electric vehicle control system further includes: the power battery, the super capacitor and the refrigerating/heating module are connected to the direct current bus; the calculating the current maximum allowable charging power of the whole vehicle comprises the following steps:

obtaining the current maximum allowable discharge power of the super capacitor, the maximum allowable discharge power of the power battery and the actual use power of the accessories; the accessory comprises a direct current-direct current conversion module and a refrigerating/heating module;

Specifically, the vehicle controller obtains the maximum allowable discharge power of the super capacitor reported by the current super capacitor, the maximum allowable discharge power of the power battery reported by the power battery and the actual use power of the accessory reported by the accessory, and because the electric energy generated by feedback charging can be consumed in three modes of super capacitor charging, power battery charging and accessory power consumption in the feedback charging process, the sum of the maximum allowable discharge power of the super capacitor, the maximum allowable discharge power of the power battery and the actual use power of the accessory can be calculated and used as the current maximum allowable charge power of the vehicle, wherein the accessory comprises a direct current-direct current conversion module and a refrigerating/heating module.

In the example, the current maximum allowable charging power of the whole vehicle is calculated based on the total power of the electric energy generated by the feedback charging consumed by three modes of super capacitor charging, power battery charging and accessory power consumption.

In addition to the above-mentioned ac power supply feedback charging, the working modes of the electric vehicle may further include a discharging mode, in order to control the electric vehicle to realize discharging, fig. 4 is a schematic flow chart of a control method of another extended-range electric vehicle according to an embodiment of the present application, as shown in fig. 4, and in an example, the method further includes:

Specifically, the vehicle controller calculates the maximum allowable discharge power of the current driving motor, and compares the calculated maximum allowable discharge power of the current driving motor with a preset third power threshold, wherein the third power threshold can be a minimum discharge power protection threshold; if the maximum allowable discharge power of the current driving motor is not greater than the third power threshold, transmitting a fault code and recalculating the maximum allowable discharge power of the current driving motor until the maximum allowable discharge power of the current driving motor is greater than the third power threshold; if the maximum allowable discharge power of the current driving motor is larger than the third power threshold, calculating the maximum driving torque of the current driving motor according to the maximum allowable discharge power of the current driving motor and the current rotating speed of the driving motor. According to the current working condition of the whole vehicle and the current maximum driving torque of the driving motor, the driving torque of the driving motor is determined and sent to the driving motor, specifically, the driving torque of the driving motor corresponding to different vehicle speeds, power battery electric quantity and super capacitor electric quantity can be preset, the corresponding driving torque of the driving motor is selected based on the current working condition of the whole vehicle, and the driving torque of the driving motor is not more than the current maximum driving torque of the driving motor. The driving motor executes the driving torque of the driving motor and feeds back the actual power consumption and the actual torque information of the current driving motor to the whole vehicle controller. The current maximum allowable power of the accessory is calculated and sent to the accessory so that the power consumed does not exceed the current maximum allowable power of the accessory when the accessory performs driver operations.

In the example, the maximum allowable discharge power of the current driving motor is calculated and compared with a preset third power threshold value, whether a fault exists or not is judged, and driving torque of the driving motor is determined based on the maximum allowable discharge power of the current driving motor, so that the driving motor is controlled; and calculating the maximum allowable power of the current accessory, and controlling the accessory, so as to regulate and control the discharging process of the electric automobile and improve the reliability of the extended range electric automobile control system.

In practical applications, there may be various ways of determining the maximum allowable discharge power of the current driving motor and the maximum allowable power of the accessory, and in one example, the extended-range electric vehicle control system further includes: the power battery, the super capacitor, the generator and the refrigerating/heating module are connected to the direct current bus; the calculating the current maximum allowable discharge power of the driving motor and the maximum allowable power of the accessories comprises the following steps:

obtaining the current maximum allowable discharge power of the super capacitor, the maximum allowable discharge power of the power battery, the actual power generation power of the generator and the actual use power of accessories; the accessory comprises a direct current-direct current conversion module and a refrigerating/heating module;

Specifically, the whole vehicle controller obtains the maximum allowable discharge power of the super capacitor reported by the current super capacitor, the maximum allowable discharge power of the power battery reported by the power battery, the actual power generation power of the generator reported by the generator and the actual use power of the accessory reported by the accessory, wherein the accessory is a direct current-direct current conversion module and a refrigerating/heating module. When the electric automobile discharges, electric energy can be generated through the super capacitor, the power battery and the generator, and the electric energy is consumed through the accessory and the driving motor, so that the sum of the maximum allowable discharge power of the current super capacitor, the maximum allowable discharge power of the power battery and the actual power generation power of the generator is calculated, and the actual power of the accessory is subtracted to be used as the maximum allowable discharge power of the current driving motor; and the maximum allowable discharge power of the current super capacitor, the maximum allowable discharge power of the power battery and the actual power generation power of the generator are calculated as the current maximum allowable power of the accessory because the power utilization priority of the accessory is higher than that of the driving motor.

In the example, calculating the maximum allowable discharge power of the current super capacitor, the sum of the maximum allowable discharge power of the power battery and the actual power generation power of the generator, and subtracting the actual use power of the accessory to obtain the maximum allowable discharge power of the current driving motor; and calculating the sum of the maximum allowable discharge power of the current super capacitor, the maximum allowable discharge power of the power battery and the actual power generation power of the generator to obtain the maximum allowable power of the current accessory.

In the control method of the extended-range electric vehicle provided by the embodiment, the maximum allowable power of the current direct current-direct current conversion module is calculated and compared with the preset first power threshold value, so that the fault is eliminated; when the maximum allowable use power of the current direct current-direct current conversion module is larger than a preset first power threshold value, controlling the direct current-direct current conversion module to execute direct current-direct current conversion processing based on the maximum allowable use power of the current direct current-direct current conversion module; and the feeding condition of the storage battery is judged according to the current direct current-direct current conversion output voltage, when the storage battery cannot be normally charged due to the fact that the current direct current-direct current conversion output voltage is too low, the power consumption of the direct current-alternating current conversion module which is connected with the storage battery at the output end of the direct current-direct current conversion module is limited, so that the storage battery is recovered to be normally charged, and under the condition that the direct current-alternating current conversion module is connected to the output end of the direct current-direct current conversion module, the power supply of the storage battery for the whole vehicle controller is ensured under the condition that the utilization rate of the direct current-direct current conversion module is effectively improved, and the reliability of a range-extended electric vehicle control system is improved.

Example two

The embodiment provides a control device of an extended range electric vehicle, which is applied to an extended range electric vehicle control system, wherein the extended range electric vehicle control system

Fig. 5 is a schematic structural diagram of a control device for an extended-range electric vehicle according to an embodiment of the application. As shown in fig. 5, the control device for an extended-range electric vehicle provided in this embodiment may include:

a receiving module 51, configured to receive an ac power supply request sent by the central control module;

a calculating module 52, configured to calculate a maximum allowable usage power of the current dc-dc conversion module in response to the ac power supply request, and if the maximum allowable usage power of the current dc-dc conversion module is greater than a preset first power threshold, send the maximum allowable usage power of the current dc-dc conversion module to the dc-dc conversion module, so as to instruct the dc-dc conversion module to perform dc-dc conversion processing based on the maximum allowable usage power of the current dc-dc conversion module, and output a dc-dc conversion output voltage;

In practical application, the control device of the extended-range electric automobile can be realized through a computer program, such as application software and the like; alternatively, the computer program may be implemented as a medium storing a related computer program, for example, a usb disk, a cloud disk, or the like; still alternatively, it may be implemented by a physical device, e.g., a chip, a server, etc., integrated with or installed with the relevant computer program.

Specifically, the receiving module 61 controls the vehicle controller to receive the ac power supply request sent by the central control module, where the ac power supply request is triggered by the driver through the central control module. In practical application, the driver CAN select to use the alternating current power supply through the display screen of the central control module, and the central control module CAN send a central control power supply request to the whole vehicle controller through the instrument CAN H and the instrument CAN L signal lines. The calculation module 62 controls the vehicle controller to respond to the alternating current power supply request, calculates the maximum allowable use power of the current direct current-direct current conversion module, compares the maximum allowable use power of the current direct current-direct current conversion module with a preset first power threshold, and if the maximum allowable use power of the current direct current-direct current conversion module is not greater than the preset first power threshold, the first power threshold can be the minimum calibration threshold power of the direct current-direct current conversion module, then sends out a fault notification and controls the direct current-direct current conversion module to stop working; if the maximum allowable use power of the current direct current-direct current conversion module is larger than a preset first power threshold, the direct current-direct current conversion module can work normally, and the calculated maximum allowable use power of the current direct current-direct current conversion module is sent to the direct current-direct current conversion module. After receiving the maximum allowable use power of the current direct current-direct current conversion module, the direct current-direct current conversion module executes direct current-direct current conversion processing, and outputs direct current-direct current conversion output voltage to the storage battery and the direct current-direct current conversion module, wherein the actual use power of the direct current-direct current conversion module does not exceed the calculated maximum allowable use power of the current direct current-direct current conversion module, and the actual use power and the working state of the current direct current-direct current conversion module are fed back to the whole vehicle controller. The vehicle controller compares the current direct current-direct current conversion output voltage with a preset voltage threshold, wherein the voltage threshold can be a feed voltage calibration threshold, if the current direct current-direct current conversion output voltage is not larger than the preset voltage threshold, the current feed of the storage battery is abnormal, the use power of the direct current-direct current conversion module needs to be limited, and the direct current-direct current conversion output voltage value is improved, so that the storage battery can normally supply power to the vehicle controller. Specifically, according to the actual power of the current dc-dc conversion module and the dc-dc conversion output voltage, the maximum allowable power value of the current dc-ac conversion module is calculated, so that when the dc-dc conversion module performs dc-dc conversion with the actual power of the current dc-dc conversion module, the output dc-dc conversion output voltage can be greater than a preset voltage threshold. And sending the calculated maximum allowable power value of the current DC-AC conversion module to the DC-AC conversion module so that the actual use power does not exceed the calculated maximum allowable power value of the DC-AC conversion module when the DC-AC conversion module executes the DC-AC conversion processing. If the current DC-DC conversion output voltage is larger than the preset voltage threshold, the DC-AC conversion module is directly instructed to execute DC-AC conversion processing, and an AC power supply signal is output to supply power to the AC electric equipment. In one possible implementation manner, the output end of the direct current-alternating current conversion module is connected to an alternating current power supply socket, the direct current-alternating current conversion module outputs 220V alternating current to supply power for alternating current electric equipment connected to the alternating current power supply socket, and actual using power and working mode of the current direct current-alternating current conversion module are fed back to the whole vehicle controller.

In order to avoid a failure in which execution of ac power supply is prohibited after responding to an ac power supply request, a failure determination may be performed in advance. In one example, the apparatus may further include:

the judging module is used for judging whether a fault belonging to a preset fault type exists at present, if so, a fault code is sent, and the step of judging whether the fault belonging to the preset fault type exists at present is repeatedly executed; if not, judging whether the alternating current power supply request is effective; any fault in the fault type represents that the work of the direct current-direct current conversion module and the direct current-alternating current conversion module is forbidden;

The calculation module 62 is specifically configured to: if the alternating current power supply request is valid, responding to the alternating current power supply request, and calculating the maximum allowable power for use of the current direct current-direct current conversion module;

the judging module is also used for: and if the alternating current power supply request is invalid, not executing the processing.

Specifically, the judging module judges whether each module of the extended-range electric automobile control system has a fault belonging to a preset fault type, wherein any fault under the fault type represents that the work of the direct current-direct current conversion module and the direct current-alternating current conversion module is forbidden, for example, the fault exists in a power battery or a super capacitor, and the output voltage is too low. If yes, sending a fault code and repeating the judging step, and continuously and repeatedly executing the judgment until the judging result is that no fault belonging to the preset fault type exists; wherein, different faults correspond to different fault codes, and a driver can acquire fault points of the electric automobile according to the fault code list and execute corresponding maintenance treatment; if not, judging whether the alternating current power supply request is effective; if so, the calculating module 62 calculates the maximum allowable power for use of the dc-dc conversion module in response to the ac power supply request; if not, the judgment module does not execute the processing. In practical applications, determining whether the ac power supply request is valid may include determining whether the ac power supply request is valid in combination with a vehicle working condition, for example, if it is detected that the current vehicle is in a running state, determining that the ac power supply request is invalid; assuming that the current vehicle is detected to be in a stationary start state, it is determined that the ac power supply request is valid.

In one example, the extended range electric vehicle control system further includes: a power cell and a super capacitor connected to the dc bus; wherein the power cells and supercapacitors may power other modules connected to the high voltage dc bus, including the dc-dc conversion module.

The computing module may be specifically configured to:

The above describes a control method for controlling the electric vehicle to implement ac power supply, and in practical application, the electric vehicle may have various working modes, for example, feedback charging may also be included. The electric automobile feedback charging refers to that the motor retransmits energy generated by the motor to the battery energy storage system during deceleration or braking, and is also called feedback braking or regenerative braking. To control the electric vehicle to implement feedback charging, in one example, the apparatus may further include:

Specifically, the feedback module calculates the current maximum allowable charging power of the whole vehicle and compares the current maximum allowable charging power with a preset second power threshold, wherein the second power threshold can be the lowest charging power protection threshold, if the current maximum allowable charging power of the whole vehicle is not greater than the preset second power threshold, a fault code is sent, and the current maximum allowable charging power of the whole vehicle is recalculated until the current maximum allowable charging power of the whole vehicle is greater than the preset second power threshold; if the current maximum allowable charge power of the whole vehicle is larger than the second power threshold, calculating the current maximum allowable feedback power of the whole vehicle, wherein the current maximum allowable feedback power of the whole vehicle can be obtained by subtracting the current charge power of the generator from the current maximum allowable charge power of the whole vehicle, and calculating the current maximum feedback torque of the driving motor according to the current maximum allowable feedback power of the whole vehicle and the current rotating speed of the driving motor. According to the current whole vehicle working condition and the current maximum feedback torque of the driving motor, the feedback torque of the driving motor is determined and sent to the driving motor, specifically, the feedback torques of the driving motor corresponding to different vehicle speeds, power batteries, super-capacitor electric quantity and braking force can be preset, the corresponding feedback torque of the driving motor is selected based on the current whole vehicle working condition, and the feedback torque of the driving motor is not more than the current maximum feedback torque of the driving motor. And the driving motor executes feedback torque of the driving motor and feeds back the information of the actual charging power and the actual torque of the current driving motor. The extended range electric automobile control system further comprises a motor controller and a generator, wherein the motor controller is connected to the high-voltage direct-current bus, the motor controller is connected with the driving motor through the alternating-current bus, and the generator is physically connected with the engine. In practical application, the whole vehicle controller can send the feedback torque of the driving motor to the motor controller, and the motor controller receives the feedback torque value of the driving motor and then performs a series of calculations internally to finally meet the torque requirement of the whole vehicle controller and control the operation of the driving motor. According to the current whole-vehicle working condition, the charging power of the generator is determined and sent to the generator, and in practical application, the charging power of the generator can be determined by combining the system efficiency of the range extender (namely the generator and the engine) and NVH (Noise, vibration, harshness, namely noise, vibration and harshness), and the charging power of the generator which can enable the system efficiency of the range extender to be higher and has lower NVH is selected. And the generator performs charging according to the charging power of the generator and feeds back the actual charging power of the current generator to the whole vehicle controller.

The current mode of obtaining the maximum allowable charging power of the whole vehicle may be various, and in one example, the extended-range electric vehicle control system further includes: the power battery, the super capacitor and the refrigerating/heating module are connected to the direct current bus; the feedback module may specifically be configured to:

the discharging module is used for acquiring the maximum allowable discharging power of the super capacitor, the maximum allowable discharging power of the power battery and the actual using power of the accessories at present; the accessory comprises a direct current-direct current conversion module and a refrigerating/heating module;

In addition to the above-mentioned ac power feedback charging, the operation modes of the electric vehicle may further include a discharging mode, so as to control the electric vehicle to realize discharging, and in one example, the apparatus may further include:

In practical applications, there may be various ways of determining the maximum allowable discharge power of the current driving motor and the maximum allowable power of the accessory, and in one example, the extended-range electric vehicle control system further includes: the power battery, the super capacitor, the generator and the refrigerating/heating module are connected to the direct current bus; the discharge module may be specifically configured to:

In the control device of the extended-range electric vehicle provided by the embodiment, the maximum allowable power of the current direct current-direct current conversion module is calculated and compared with the preset first power threshold value, so that the fault is eliminated; when the maximum allowable use power of the current direct current-direct current conversion module is larger than a preset first power threshold value, controlling the direct current-direct current conversion module to execute direct current-direct current conversion processing based on the maximum allowable use power of the current direct current-direct current conversion module; and the feeding condition of the storage battery is judged according to the current direct current-direct current conversion output voltage, when the storage battery cannot be normally charged due to the fact that the current direct current-direct current conversion output voltage is too low, the power consumption of the direct current-alternating current conversion module which is connected with the storage battery at the output end of the direct current-direct current conversion module is limited, so that the storage battery is recovered to be normally charged, and under the condition that the direct current-alternating current conversion module is connected to the output end of the direct current-direct current conversion module, the power supply of the storage battery for the whole vehicle controller is ensured under the condition that the utilization rate of the direct current-direct current conversion module is effectively improved, and the reliability of a range-extended electric vehicle control system is improved.

Example III

Fig. 6 is a schematic structural diagram of an electronic device provided in an embodiment of the disclosure, as shown in fig. 6, where the electronic device includes:

a processor 291, the electronic device further comprising a memory 292; a communication interface (Communication Interface) 293 and bus 294 may also be included. The processor 291, the memory 292, and the communication interface 293 may communicate with each other via the bus 294. Communication interface 293 may be used for information transfer. The processor 291 may call logic instructions in the memory 292 to perform the methods of the above-described embodiments.

Further, the logic instructions in memory 292 described above may be implemented in the form of software functional units and stored in a computer-readable storage medium when sold or used as a stand-alone product.

The memory 292 is a computer-readable storage medium that may be used to store a software program, a computer-executable program, and program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 291 executes functional applications and data processing by running software programs, instructions and modules stored in the memory 292, i.e., implements the methods of the method embodiments described above.

Memory 292 may include a storage program area that may store an operating system, at least one application program required for functionality, and a storage data area; the storage data area may store data created according to the use of the terminal device, etc. Further, memory 292 may include high-speed random access memory, and may also include non-volatile memory.

The disclosed embodiments provide a non-transitory computer readable storage medium having stored therein computer-executable instructions that, when executed by a processor, are configured to implement the method of the previous embodiments.

Example IV

The disclosed embodiments provide a computer program product comprising a computer program which, when executed by a processor, implements the method provided by any of the embodiments of the disclosure described above.

Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. The control method of the extended range electric automobile is characterized by being applied to an extended range electric automobile control system, and the extended range electric automobile control system comprises the following steps: the device comprises a direct current-direct current conversion module, a direct current-alternating current conversion module and a storage battery; the input end of the direct current-direct current conversion module is connected to a direct current bus, and the input ends of the storage battery and the direct current-direct current conversion module are both connected to the output end of the direct current-direct current conversion module; the method comprises the following steps:

2. The method of claim 1, wherein before calculating the maximum allowable power for use of the dc-dc conversion module in response to the ac power request, further comprising:

3. The method of claim 1, wherein the extended range electric vehicle control system further comprises: a power cell and a super capacitor connected to the dc bus; the calculating the maximum allowable power for use of the dc-dc conversion module includes:

4. A method according to any one of claims 1-3, wherein the method further comprises:

5. The method of claim 4, wherein the extended range electric vehicle control system further comprises: the power battery, the super capacitor, the refrigeration module and the heating module are connected to the direct current bus; the calculating the current maximum allowable charging power of the whole vehicle comprises the following steps:

6. A method according to any one of claims 1-3, wherein the method further comprises:

7. The method of claim 6, wherein the extended range electric vehicle control system further comprises: the power battery, the super capacitor, the generator, the refrigeration module and the heating module are connected to the direct current bus; the calculating the current maximum allowable discharge power of the driving motor and the maximum allowable power of the accessories comprises the following steps:

8. The utility model provides a control device of extended range electric automobile which characterized in that is applied to extended range electric automobile control system, extended range electric automobile control system includes: the device comprises a direct current-direct current conversion module, a direct current-alternating current conversion module and a storage battery; the input end of the direct current-direct current conversion module is connected to a direct current bus, and the input ends of the storage battery and the direct current-direct current conversion module are both connected to the output end of the direct current-direct current conversion module; the device comprises:

9. An electronic device, comprising: a processor, and a memory communicatively coupled to the processor;

the memory stores computer-executable instructions;

the processor executes computer-executable instructions stored in the memory to implement the method of any one of claims 1-7.

10. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are adapted to carry out the method of any one of claims 1-7.