CN115950649A

CN115950649A - Method, device and equipment for quickly testing driving range of pure electric vehicle under multiple working conditions

Info

Publication number: CN115950649A
Application number: CN202211664868.2A
Authority: CN
Inventors: 史育海; 晁燕; 杜红云; 李岳兵; 丁玲
Original assignee: Xiangyang Daan Automobile Test Center Co Ltd
Current assignee: Xiangyang Daan Automobile Test Center Co Ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-04-11

Abstract

The invention provides a method, a device and equipment for quickly testing the driving range of a pure electric vehicle under multiple working conditions, wherein the method for quickly testing the driving range of the pure electric vehicle under the multiple working conditions comprises the following steps: controlling the test vehicle in the full-power state to perform rapid discharge after running under each test working condition in sequence; recording test data of the test vehicle under each test working condition; based on the test data, calculating to obtain the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition; and calculating the driving range of the test vehicle under each test working condition based on the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition. The invention can combine all the test working conditions to complete the test in one discharge cycle, has short test period and lower corresponding test manpower and resource cost, and ensures the accuracy of the determined driving range data under all the working conditions on the basis of rapidly testing the driving range under all the working conditions.

Description

Method, device and equipment for quickly testing driving range of pure electric vehicle under multiple working conditions

Technical Field

The invention relates to the technical field of driving range testing of pure electric vehicles, in particular to a method, a device and equipment for quickly testing driving range of a pure electric vehicle under multiple working conditions.

Background

In the existing electric automobile driving range testing method EV-test, GB/T18386.1-2021, driving ranges under different scenes of normal temperature, low temperature, high temperature and high speed are separately tested, and a complete discharge cycle is required to be respectively carried out. At present, a shortening method can be used only when a normal-temperature driving range test is carried out, and the shortening method greatly shortens the test time by introducing two sections of high-speed driving rapid discharge in the test process. The low-temperature and high-temperature driving range test is carried out by a conventional working condition method, and the average vehicle speed tested by the conventional working condition method is about 30km/h, so that the test time of a single test at low temperature and high temperature is very long. If the normal temperature, the low temperature, the high temperature and the high speed driving range are separately tested, the total test period is very long, 12 days are needed for completing the test by one vehicle, a large amount of test resources and manpower are occupied in the period, and the test cost is high.

Disclosure of Invention

The invention mainly aims to provide a method, a device and equipment for quickly testing the driving range of a pure electric vehicle under multiple working conditions, and aims to solve the technical problems of long test period and high test cost caused by separate testing of each test working condition in the driving range test under each working condition in the prior art.

In a first aspect, the invention provides a method for quickly testing the driving range of a pure electric vehicle under multiple working conditions, which comprises the following steps:

controlling the test vehicle in the full-power state to perform rapid discharge after running under each test working condition in sequence;

recording test data of the test vehicle under each test working condition;

based on the test data, calculating to obtain the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition;

and calculating the driving range of the test vehicle under each test working condition based on the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition.

Optionally, the step of controlling the test vehicle in the full power state to perform rapid discharge after the test vehicle operates under each test condition in sequence includes:

controlling the test vehicle in the full-power state to run under a first test working condition;

controlling the test vehicle which runs under the first test working condition to run under a second test working condition after being soaked in the vehicle for a first preset time at a preset humidity and a preset illumination intensity in a second preset temperature range, wherein the lower limit value of the second preset temperature range is greater than the upper limit value of the first preset temperature range;

controlling the test vehicle which runs under the second test working condition to run under a third test working condition after being cooled for a second preset time at a fan with a preset wind speed within the first preset temperature range;

controlling the test vehicle which runs under the third test working condition to run under a fourth test working condition after the test vehicle is cooled for a second preset time at a fan with a preset wind speed at a third preset temperature and the temperature of the oil of the speed reducer reaches a fourth preset temperature, wherein the third preset temperature is lower than the fourth preset temperature, and the fourth preset temperature is lower than the lower limit value of the first preset temperature range;

controlling the test vehicle which runs under the fourth test working condition to run under the first discharge working condition after the air conditioner is closed;

and controlling the ambient temperature of the test vehicle which runs under the first discharging working condition to rise to the first preset temperature range within a third preset time period, and running under the second discharging working condition after the test vehicle is immersed for a fourth preset time period under the condition that the ambient temperature is within the first preset temperature range.

Optionally, the first test condition is: the test vehicle is in a first preset temperature range, and the test vehicle repeatedly runs for a preset CLTC-P speed working condition;

the second test condition is as follows: the test vehicle is in a second preset temperature range, the environment illumination intensity is preset illumination intensity, the environment humidity is preset humidity, an air conditioner of the test vehicle is started in a first preset mode, and the test vehicle repeatedly runs for preset CLTC-P speed working conditions;

the third test condition is as follows: the environment temperature of the test vehicle is in a first preset temperature range, and the test vehicle runs at the constant speed of a preset vehicle speed for a first preset time;

the fourth test condition is as follows: the environment temperature of the test vehicle is a fourth preset temperature, the air conditioner of the test vehicle is started in a second preset mode, and the test vehicle repeatedly runs for a preset CLTC-P speed working condition;

the first discharge working condition is as follows: the environment temperature of the test vehicle is a fourth preset temperature, and the test vehicle runs at a constant speed of a preset vehicle speed until the vehicle speed cannot be kept at a speed smaller than the preset vehicle speed by a preset threshold value;

the second discharge working condition is as follows: the test vehicle is operated at a constant speed of a preset vehicle speed until the vehicle speed cannot be kept at a speed smaller than the preset vehicle speed by a preset threshold value.

Optionally, the step of calculating, based on the test data, total dischargeable electric quantity and power consumption per kilometer of the power battery corresponding to the test vehicle under each test condition includes:

calculating to obtain the total dischargeable electric quantity of the power battery corresponding to the test vehicle under each test working condition based on the electric quantity variation of the power battery under each test working condition, wherein the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the first/second/third test working conditions is the sum of the electric quantity variation of the power battery under each test working condition and each discharge working condition, and the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the fourth test working condition is the sum of the electric quantity variation of the power battery under each test working condition and the first discharge working condition;

calculating to obtain the power consumption per kilometer corresponding to the test vehicle under the first/second/fourth test working condition based on the variable quantity of the power battery power of the test vehicle corresponding to each CLTC-P speed working condition in the first/second/fourth test working condition, the driving mileage and the total dischargeable power of the power battery corresponding to the test vehicle under the first/second/fourth test working condition;

and calculating to obtain the power consumption per kilometer corresponding to the test vehicle under the third test working condition based on the electric quantity variation and the driving mileage of the power battery of the corresponding test vehicle under the third test working condition.

Optionally, the step of calculating, based on the electric quantity variation, the driving distance, and the total electric quantity dischargeable from the power battery of the test vehicle corresponding to each CLTC-P speed condition in the first/second/fourth test condition, to obtain the electric consumption per kilometer corresponding to the test vehicle under the first/second/fourth test condition includes:

inputting the power battery electric quantity variation quantity and the driving mileage of the test vehicle corresponding to each CLTC-P speed working condition in the first/second/fourth test working condition and the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the first/second/fourth test working condition into a preset calculation model, and calculating to obtain the power consumption per kilometer corresponding to the test vehicle under the first/second/fourth test working condition, wherein the preset calculation model is as follows:

/>

wherein c is one of CLTC-P speed working conditions under the first/second/fourth test working conditions, E _battery (c) One CLTC-P speed working condition corresponds to the electric quantity variation of the power battery of the tested vehicle under the first/second/fourth test working conditions, D (c) is the driving mileage of the tested vehicle corresponding to one CLTC-P speed working condition in the first/second/fourth test working conditions, k (c) is the power consumption weighting coefficient corresponding to one CLTC-P speed working condition in the first/second/fourth test working conditions, E (c) is the power consumption weighting coefficient corresponding to one CLTC-P speed working condition in the first/second/fourth test working conditions _battery And (all) is the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the first/second/fourth test working condition, n is the CLTC-P speed working condition number, and n is more than or equal to 3 and less than or equal to 5.

Optionally, the step of calculating, based on the electric quantity variation and the driving distance of the power battery of the test vehicle corresponding to the third test condition, the power consumption per kilometer corresponding to the test vehicle under the third test condition includes:

inputting the electric quantity variation and the driving mileage of the power battery of the corresponding test vehicle under the third test working condition into a first formula, and calculating to obtain the power consumption per kilometer corresponding to the test vehicle under the third test working condition, wherein the first formula is as follows:

EC is the power consumption per kilometer corresponding to the test vehicle under the third test working condition, E _battery And (CS) is the electric quantity variation of the power battery corresponding to the test vehicle under the third test working condition, and D (CS) is the driving mileage corresponding to the test vehicle under the third test working condition.

Optionally, the step of calculating the driving range of the test vehicle under each test condition based on the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test condition includes:

inputting the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition into a second formula, and calculating to obtain the driving range of the test vehicle under each test working condition, wherein the second formula is as follows:

wherein D is _R For testing the driving range of the vehicle under each test condition, E _battery (all) is total electric quantity which can be discharged by the power battery corresponding to the test vehicle under each test working condition, and EC is power consumption per kilometer corresponding to the test vehicle under each test working condition.

Optionally, after the step of sequentially operating the test vehicle in the full power state under each test condition, the method includes:

controlling an external alternating-current charging pile to charge the test vehicle to a full-charge state, and recording the total electric quantity charged by the external charging pile;

substituting the total electric quantity and the driving range of the test vehicle under the first/second/third/fourth test working condition into a third formula, and calculating to obtain the power consumption per kilometer of the test vehicle under each test working condition based on an external power grid, wherein the third formula is as follows:

wherein, EC _PG For testing the power consumption per kilometer of the vehicle under various test conditions based on the external power grid, E _AC The total electric quantity charged by the external charging pile after the test is finished is shown, D _R And indicating the driving range of the test vehicle under each test working condition. .

In a second aspect, the present invention further provides a device for quickly testing a driving range of a pure electric vehicle under multiple operating conditions, where the device for quickly testing a driving range of a pure electric vehicle under multiple operating conditions includes:

the control module is used for controlling the test vehicle in the full-power state to perform rapid discharge after running under each test working condition in sequence;

the recording module is used for recording test data of the test vehicle under each test working condition;

the first calculation module is used for calculating and obtaining the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition based on the test data;

and the second calculation module is used for calculating the driving range of the test vehicle under each test working condition based on the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition.

Optionally, the control module is specifically configured to:

controlling the test vehicle which runs under the first test working condition to run under a second test working condition after soaking in the vehicle for a first preset time at a preset humidity and a preset illumination intensity within a second preset temperature range, wherein the lower limit value of the second preset temperature range is greater than the upper limit value of the first preset temperature range;

controlling the test vehicle which runs under the fourth test working condition to run under the first discharge working condition after the air conditioner is turned off;

Optionally, the first test condition is: the environment temperature of the test vehicle is in a first preset temperature range, and the test vehicle repeatedly runs for a preset CLTC-P speed working condition;

Optionally, the first calculating module is specifically configured to:

calculating to obtain the total dischargeable electric quantity of the power battery corresponding to the test vehicle under each test working condition based on the electric quantity variation of the power battery under each test working condition, wherein the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the first test working condition, the second test working condition and the third test working condition is the sum of the electric quantity variation of the power battery under each test working condition and each discharge working condition, and the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the fourth test working condition is the sum of the electric quantity variation of the power battery under each test working condition and the first discharge working condition;

and calculating to obtain the power consumption per kilometer corresponding to the test vehicle under the third test working condition based on the electric quantity variation and the driving mileage of the power battery corresponding to the test vehicle under the third test working condition.

Optionally, the first calculating module is further specifically configured to:

wherein c is one of CLTC-P speed working conditions under the first/second/fourth test working conditions, E _battery (c) One CLTC-P speed working condition corresponds to the electric quantity variation of the power battery of the tested vehicle under the first/second/fourth test working conditions, D (c) is the driving mileage of the tested vehicle corresponding to one CLTC-P speed working condition in the first/second/fourth test working conditions, k (c) is the power consumption weighting coefficient corresponding to one CLTC-P speed working condition in the first/second/fourth test working conditions, E (c) is the power consumption weighting coefficient corresponding to one CLTC-P speed working condition in the first/second/fourth test working conditions _battery (all) is the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the first/second/fourth test working condition, n is the CLTC-P speed working condition number, and n is more than or equal to 3 and less than or equal to 5.

Optionally, the first calculating module is further specifically configured to:

Optionally, the second calculating module is specifically configured to:

wherein D is _R For the continuous driving range of the test vehicle under each test condition, E _battery (all) is total electric quantity which can be discharged by the power battery corresponding to the test vehicle under each test working condition, and EC is power consumption per kilometer corresponding to the test vehicle under each test working condition.

Optionally, the quick driving range testing device for the pure electric vehicle under multiple operating conditions further includes a third computing module, configured to:

wherein, EC _PG For testing the power consumption per kilometer of the vehicle under various test conditions based on the external power grid, E _AC The total electric quantity charged by the external charging pile after the test is finished is shown, D _R And representing the driving range of the tested vehicle under each test working condition.

In a third aspect, the invention further provides a device for quickly testing the driving range of the pure electric vehicle under multiple operating conditions, which comprises a processor, a memory and a program for quickly testing the driving range of the pure electric vehicle under multiple operating conditions, wherein the program is stored in the memory and can be executed by the processor, and when the program for quickly testing the driving range of the pure electric vehicle under multiple operating conditions is executed by the processor, the method for quickly testing the driving range of the pure electric vehicle under multiple operating conditions is realized.

The invention provides a method, a device and equipment for quickly testing the driving range of a pure electric vehicle under multiple working conditions, wherein the method for quickly testing the driving range of the pure electric vehicle under the multiple working conditions comprises the following steps: controlling the test vehicle in the full-power state to perform rapid discharge after running under each test working condition in sequence; recording test data of the test vehicle under each test working condition; based on the test data, calculating to obtain the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition; and calculating the driving range of the test vehicle under each test working condition based on the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition. The invention combines all the test working conditions to complete the test in one discharge cycle, has short test period and lower corresponding test manpower and resource cost, and ensures the accuracy of the determined driving range data under all the working conditions on the basis of achieving the purpose of quickly testing the driving range under all the working conditions.

Drawings

FIG. 1 is a schematic diagram of a hardware structure of a device for rapidly testing a driving range of a pure electric vehicle under multiple operating conditions according to an embodiment of the present invention;

FIG. 2 is a schematic flow chart of an embodiment of a method for rapidly testing driving range of a pure electric vehicle under multiple operating conditions according to the present invention;

FIG. 3 is a schematic flow chart of another embodiment of the quick driving range testing method for the pure electric vehicle under multiple working conditions according to the present invention;

FIG. 4 is a schematic diagram of a single discharge cycle rapid test process according to an embodiment of the method for rapidly testing the driving range of the pure electric vehicle under multiple operating conditions of the present invention;

FIG. 5 is a schematic flow chart of yet another embodiment of the method for rapidly testing the driving range of the pure electric vehicle under multiple operating conditions according to the present invention;

fig. 6 is a schematic functional module diagram of a quick driving range testing device for a pure electric vehicle under multiple operating conditions according to an embodiment of the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In a first aspect, the embodiment of the invention provides a device for quickly testing the driving range of a pure electric vehicle under multiple working conditions.

Referring to fig. 1, fig. 1 is a schematic diagram of a hardware structure of a quick driving range testing device of a pure electric vehicle under multiple operating conditions according to an embodiment of the present invention. In the embodiment of the present invention, the device for quickly testing driving range of the pure electric vehicle under multiple operating conditions may include a processor 1001 (for example, a Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used for implementing connection communication among the components; the user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard); the network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WI-FI interface, WI-FI interface); the memory 1005 may be a Random Access Memory (RAM) or a non-volatile memory (non-volatile memory), such as a magnetic disk memory, and the memory 1005 may optionally be a storage device independent of the processor 1001. Those skilled in the art will appreciate that the hardware configuration shown in fig. 1 is not intended to limit the present invention, and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

With continued reference to fig. 1, the memory 1005 of fig. 1, which is a computer storage medium, may include an operating system, a network communication module, a user interface module, and a driving range rapid test program for a pure electric vehicle under multiple operating conditions. The processor 1001 may call a program for quickly testing the driving range of the pure electric vehicle under multiple operating conditions, which is stored in the memory 1005, and execute the method for quickly testing the driving range of the pure electric vehicle under multiple operating conditions, which is provided by the embodiment of the present invention.

In a second aspect, the embodiment of the invention provides a method for quickly testing driving range of a pure electric vehicle under multiple working conditions.

Referring to fig. 2, fig. 2 is a schematic flow chart of an embodiment of a method for rapidly testing driving range of a pure electric vehicle under multiple operating conditions according to the present invention.

In an embodiment of the quick driving range testing method for the pure electric vehicle under multiple working conditions, the quick driving range testing method for the pure electric vehicle under multiple working conditions comprises the following steps:

step S10, controlling the test vehicle in a full-power state to perform rapid discharge after running under each test working condition in sequence;

step S20, recording test data of the test vehicle under each test working condition;

step S30, based on the test data, calculating to obtain the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition;

and S40, calculating the driving range of the test vehicle under each test working condition based on the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition.

In the embodiment, in consideration of the driving range test under multiple working conditions of the pure electric vehicle in the prior art, the test period is long, and a large amount of test resources and manpower are occupied during the test period, so that the test cost is high. Therefore, currently, only normal-temperature driving range tests are generally performed, and driving range tests in use scenes such as low-temperature hot air, high-temperature air conditioner, high-speed constant speed and the like which are more concerned by drivers in actual driving are few, so that the requirements of consumers cannot be met. Therefore, the vehicle is correspondingly prepared for tests and is full of electric quantity by taking the scene working conditions as the test working conditions. Wherein the specific test preparation comprises: (1) The method comprises the following steps that road resistance rotary drum simulation setting is carried out, wherein the simulated resistance is the resistance of a vehicle to slide on a road under a normal temperature condition, and a chassis dynamometer can simulate and load the rotary drum road resistance according to GB/T18386.1-2021; (2) The current sensor and the voltage sensor are arranged, the current sensor and the voltage sensor are used for monitoring current and voltage of a power battery bus, a motor controller, a DCDC output, a PTC and an electric compressor, wherein the current measuring device adopts a high-precision current clamp, the testing precision is less than or equal to 0.3 percent rdg, the testing precision of the voltage measuring device is less than or equal to 0.1 percent rdg, the current and voltage testing frequency is greater than or equal to 20HZ, and the integrated circuit has the functions of synchronous testing of currents and voltages of a plurality of channels and integral calculation; (3) Temperature sensors are arranged, temperature measuring points on the side of a headrest in a cockpit are arranged according to GB/T18386.1-2021, air outlets are distributed after the rear air distribution opening is closed, and temperature sensors of four air conditioner air outlets and oil temperature sensors of a speed reducer are arranged. The four air-conditioning air outlets in the front row are opened to the maximum, the wind direction is in the middle, and the test precision of the temperature sensor is less than or equal to 0.5 ℃.

After the test preparation is finished and the electric quantity is full, the vehicle in the full-electric state is controlled to perform rapid discharging after running under each test working condition in sequence in a single discharging cycle. The test conditions correspond to a normal-temperature environment CLTC-P speed condition running power consumption test, a high-temperature environment CLTC-P speed condition running power consumption test, a normal-temperature environment high-speed constant-speed running power consumption test and a low-temperature environment CLTC-P speed condition running power consumption test. The time period of the whole test can be shortened through the subsequent low-temperature environment discharge test and the normal-temperature environment residual dischargeable quantity test. And recording the test data of the test vehicle under each test working condition in the whole test process. Based on the test data, the total electric quantity and the power consumption per kilometer corresponding to the test vehicle under each test working condition can be calculated. The test data comprises the speed, the driving mileage, the power battery bus, the motor controller, the DCDC output, the voltage and the current of the electric compressor, the temperature measuring point of the cockpit, the temperature of the air outlet of the air conditioner and the like. And calculating the driving range of the test vehicle under each test working condition based on the total electric quantity and the power consumption per kilometer under each test working condition. The test mode can finish all test working conditions in one discharge cycle, the test period is short, and the corresponding test cost is low.

Further, in an embodiment, referring to fig. 3, the step S10 includes:

step S101, controlling a test vehicle in a full-power state to run under a first test working condition;

step S102, controlling a test vehicle which runs under a first test working condition to run under a second test working condition after soaking in the vehicle for a first preset time at a preset humidity and a preset illumination intensity within a second preset temperature range, wherein the lower limit value of the second preset temperature range is greater than the upper limit value of the first preset temperature range;

step S103, controlling the test vehicle which runs under the second test working condition to run under a third test working condition after cooling for a second preset time at a fan with a preset wind speed in a first preset temperature range;

step S104, controlling the test vehicle which runs under the third test working condition to run under a fourth test working condition after the test vehicle is cooled for a second preset time at a fan with a preset wind speed at a third preset temperature and the temperature of the oil of the speed reducer reaches a fourth preset temperature, wherein the third preset temperature is lower than the fourth preset temperature, and the fourth preset temperature is lower than the lower limit value of the first preset temperature range;

step S105, controlling the test vehicle which runs under the fourth test working condition to run under the first discharge working condition after the air conditioner is closed;

and S106, controlling the environment temperature of the test vehicle which runs under the first discharging working condition to rise to the first preset temperature range within a third preset time period, and running under the second discharging working condition after the environment temperature is soaked for a fourth preset time period under the first preset temperature range.

In this embodiment, because the environmental control conditions of each test condition are different, therefore the test vehicle of control full charge state carries out fast discharge after running under each test condition in proper order, needs to accomplish the switching of the vehicle that different test conditions correspond and is located experimental ambient temperature, humidity, illumination intensity. Wherein, ambient temperature's switching includes intensification and cooling, the vehicle passes through the ambient temperature in adjustable environmental chamber in experimental environment, humidity, open sunshine analogue means simulation illumination intensity and soak the car for a period of time and realize the switching from normal atmospheric temperature environment to high temperature environment, the vehicle passes through the ambient temperature in adjustable environmental chamber in experimental environment, close sunshine analogue means and realize the switching from high temperature environment to normal atmospheric temperature environment by fan forced cooling for a period of time, the vehicle passes through the ambient temperature in adjustable environmental chamber in experimental environment and soaks the car for a period of time again after fan forced cooling for a period of time and realizes the switching from normal atmospheric temperature environment to low temperature environment, the vehicle passes through the ambient temperature in adjustable environmental chamber and soaks the car for a period of time and realizes the switching from low temperature environment to normal atmospheric temperature environment in experimental environment.

The environment bin can simulate the environment temperature and humidity during vehicle test, the simulated temperature range is-20 ℃ to 40 ℃, the relative humidity is 20% to 80%, the environment bin has the rapid cooling capacity, and the temperature can be reduced from 23 ℃ to-10 ℃ within 10 min. The sunlight simulator can simulate the illumination of the vehicle in the high-temperature test, and the maximum illumination intensity simulated by the sunlight simulator is more than or equal to 1200w/m ² . The fan can simulate the air flow of a vehicle in the driving process, the maximum wind speed of the fan is more than or equal to 120km/h, and the outlet area is more than or equal to 0.5m ² And the width or the diameter is larger than 1m, and the wind speed of the fan is required to follow the speed of the vehicle. The temperature of the test environment bin, the illumination intensity and the humidity based on the top of the vehicle can be controlled in the vehicle immersion process, and the window glass, the door, the trunk door and the skylight sunshade curtain can be kept closed in the vehicle immersion process.

Referring to fig. 4, in the present embodiment, the test is performed according to the sequence of the normal temperature environment standard condition running power consumption test, the high temperature environment standard condition running power consumption test, the normal temperature environment high-speed constant speed running power consumption test, the low temperature environment standard condition running power consumption test, the low temperature environment discharge test, and the normal temperature environment discharge test. Therefore, the step of specifically controlling the test vehicle in the full-power state to run under each test working condition in sequence comprises the following steps: firstly, controlling a test vehicle in a full-electric state to run under a first test working condition, then controlling the test vehicle running under the first test working condition to soak the vehicle under a second preset temperature range and a preset humidity and a preset illumination intensity for a first preset time (such as 30 +/-2 ℃, humidity (50 +/-5)%, illumination intensity (850 +/-45) w/m < 2 > for 1 h) to run under a second test working condition, then controlling the test vehicle running under the second test working condition to run under a third test working condition after controlling the test vehicle running under the second test working condition to cool down for a second preset time (such as 23 +/-3 ℃) by a fan with a preset wind speed under the first preset temperature range, and finally controlling the test vehicle running under the third test working condition to run under a third preset temperature for a second preset time and a fan with a preset wind speed to cool down until the oil temperature of a speed reducer reaches a fourth preset temperature (such as the fan at an oil temperature of-10 ℃, the fan speed is kept at 60/h, the vehicle is forcedly cooled down for a second preset time until the oil temperature of the speed reaches a speed, and the temperature of the vehicle is 0.5-7 ℃ to-7 ℃ of the reducer. The lower limit value of the second preset temperature range is larger than the upper limit value of the first preset temperature range, the third preset temperature is lower than the fourth preset temperature, and the fourth preset temperature is smaller than the lower limit value of the first preset temperature range.

And after the test vehicle which controls the full-power state operates under each test working condition in sequence, rapidly discharging, specifically, firstly controlling the test vehicle which operates under the fourth test working condition to operate under the first discharge working condition after an air conditioner is closed, then controlling the environment temperature of the test vehicle which operates under the first discharge working condition to rise to a first preset temperature range within a third preset time period, and after the test vehicle which operates under the first discharge working condition soaks for a fourth preset time period under the condition that the environment temperature is within the first preset temperature range (for example, the environment cabin temperature of the vehicle is slowly raised to 23 ℃ from-7 ℃ within 4h, and the vehicle is soaked for 6h at 23 ℃) to operate under the second discharge working condition. Through the mode, the test can be completed in one discharge cycle by combining the test working conditions, the overall test period is shorter than that of a plurality of test working conditions of a plurality of discharge cycles in separate tests, and the test manpower and resource cost are low, so that the driving range data under a plurality of use scenes such as normal temperature, high temperature, low temperature, normal temperature, high speed and constant speed can be obtained more easily, and the user requirements can be better met.

Further, in an embodiment, the first test condition is: the test vehicle is in a first preset temperature range, and the test vehicle repeatedly runs for a preset CLTC-P speed working condition;

the fourth test condition is: the environment temperature of the test vehicle is a fourth preset temperature, the air conditioner of the test vehicle is started in a second preset mode, and the test vehicle repeatedly runs for a preset CLTC-P speed working condition;

the first discharge working condition is as follows: the environment temperature of the test vehicle is a fourth preset temperature, and the test vehicle runs at the constant speed of the preset vehicle speed until the vehicle speed cannot be kept at the speed smaller than the preset vehicle speed by a preset threshold value;

the second discharge working condition is as follows: the test vehicle is in a first preset temperature range, and the test vehicle runs at a constant speed of a preset vehicle speed until the vehicle speed cannot be kept at a speed smaller than the preset vehicle speed by a preset threshold value.

In this embodiment, the first test condition corresponds to a power consumption test of the normal operating condition in a normal temperature environment, the second test condition corresponds to a power consumption test of the normal operating condition of the air conditioner in a high temperature environment, the third test condition corresponds to a power consumption test of high-speed constant-speed driving in a normal temperature environment, the fourth test condition corresponds to a power consumption test of the normal operating condition of warm air in a low temperature environment, the first discharge condition corresponds to rapid discharge in a low temperature environment, and the second discharge condition corresponds to rapid discharge in a normal temperature environment. Wherein the standard working condition of the passenger vehicle is the CLTC-P speed working condition.

Therefore, the first test working condition, such as the environment temperature of the test vehicle is in a first preset temperature range (23 +/-3 ℃), the test vehicle repeatedly runs a preset CLTC-P speed working condition, the vehicle driving mode at the moment is the most economical driving mode capable of maintaining the vehicle speed running under the CLTC-P speed working condition, and the braking energy recovery intensity is the maximum. After the power battery runs under the first test working condition, recording the power battery electric quantity change E of each CLTC-P speed working condition corresponding to the test cycle _battery (c) Electric quantity E recovered at the motor controller end _recovery (c) Mileage of driving in cyclesD (c), c is the number of cycles. Wherein, the recovered electric quantity E of the motor controller end of the test cycle is correspondingly tested according to each CLTC-P speed working condition _recovery (c) When (E) _recovery (c+1)-E _recovery (c))/E _recovery (c) If the number of the CLTC-P speed working conditions is less than 5%, the number of the CLTC-P speed working conditions is determined to be C +1, after the C +1 CLTC-P speed working conditions are finished, the power consumption test under the first test working condition is stopped, and C +1 is more than or equal to 3 and less than or equal to 5. When the first test working condition finishes running, obtaining the total power battery electric quantity change E of the power consumption test under the first test working condition _battery (NT)。

And under a second test working condition, for example, the ambient temperature of the test vehicle is within a second preset temperature range (30 +/-2 ℃), the ambient illumination intensity is preset illumination intensity (850 +/-45) w/m ^ 2), the ambient humidity is preset humidity (50 +/-5)%), and the air conditioner of the test vehicle is started in a first preset mode. The first preset mode of starting the air conditioner is that the initial setting is the strongest refrigeration mode, the temperature is the lowest, the air quantity is the largest, the air internal circulation and the air outlet blowing mode of the air conditioner are blowing surfaces. After the initial setting is finished, the test vehicle is controlled to repeatedly run for a preset CLTC-P speed working condition. When the test vehicle is controlled to repeatedly run for a preset CLTC-P speed working condition, when the average temperature of the test points on the headrest side reaches 25 ℃, the air conditioner is adjusted to keep the average temperature of the test points at 23-25 ℃. The vehicle driving mode at the moment is the most economical driving mode which can maintain the CLTC-P speed working condition and can ensure the cooling requirement in the driving cabin, and the recovery intensity of the braking energy is the maximum. After the operation under the second test working condition, recording the power battery electric quantity change E of each CLTC-P speed working condition corresponding to the test cycle _battery (c) Electric quantity recovered at motor controller end E _recovery (c) Compressor electric power consumption E _EAC (c) The cycle mileage D (c), c is the number of cycles. Wherein, the recovered electric quantity E of the motor controller end of the test cycle is correspondingly tested according to each CLTC-P speed working condition _recovery (c) When (E) _recovery (c+1)-E _recovery (c))/E _recovery (c) < 5% and (E) _EAC (c+1)-E _EAC (c))/E _EAC (c) If the number of the CLTC-P speed working conditions is less than 5 percent, the number of the CLTC-P speed working conditions is determined to be C +1And when the C +1 CLTC-P speed working conditions are finished, the power consumption test under the second test working condition is stopped, and C +1 is more than or equal to 3 and less than or equal to 5. When the second test working condition finishes running, obtaining the total power battery electric quantity change E of the power consumption test under the second test working condition _battery (HT)。

The third test condition is that the test vehicle is in a first preset temperature range (23 +/-3 ℃), and the test vehicle runs at a constant speed of a preset vehicle speed (such as 100 km/h) for a first preset time. Recording the total power battery electric quantity change E of the power consumption test under the third test working condition _battery (CS), mileage traveled D (CS).

And the fourth test working condition is that the ambient temperature of the test vehicle is a fourth preset temperature (-7 +/-2 ℃), and the air conditioner of the test vehicle is started in a second preset mode. The second preset mode of starting the air conditioner is that the air conditioner is initially set to be in a strongest heating mode, the temperature is highest, the air volume is maximum, the air external circulation mode and the air outlet blowing mode of the air conditioner are blowing feet. After the initial setting is finished, the test vehicle is controlled to repeatedly run for a preset CLTC-P speed working condition. When the test vehicle is controlled to repeatedly run for a preset CLTC-P speed working condition, when the average temperature of the test points at the headrest side reaches 20 ℃, the air conditioner is adjusted to keep the average temperature of the test points at 20-22 ℃. The vehicle driving mode at the moment is the most economical driving mode which can maintain the speed running under the CLTC-P speed working condition and can ensure the temperature rise requirement in the driving cabin, and the recovery intensity of the braking energy is the maximum. After the operation under the fourth test working condition, recording the power battery electric quantity change E of each CLTC-P speed working condition corresponding to the test cycle _battery (c) Electric quantity recovered at motor controller end E _recovery (c) Electric quantity E consumed by heat pump air conditioner compressor or high-voltage heating component PTC _EAC (c) The cycle mileage D (c), c is the number of cycles. Wherein, the recovered electric quantity E of the motor controller end of the test cycle is correspondingly tested according to each CLTC-P speed working condition _recovery (c) When (E) _recovery (c+1)-E _recovery (c))/E _recovery (c) < 5% and (E) _EAC (c+1)-E _EAC (c))/E _EAC (c) If the number of the CLTC-P speed working conditions is less than 5 percent, determining that the number of the CLTC-P speed working conditions is C +1, and after the C +1 CLTC-P speed working conditions are finished, determining that the number of the CLTC-P speed working conditions is fourthAnd stopping the power consumption test under the test working condition, wherein C +1 is more than or equal to 3 and less than or equal to 5. When the fourth test working condition finishes running, obtaining the total power battery electric quantity change E of the power consumption test under the fourth test working condition _battery (LT)。

If the environment temperature of the test vehicle is a fourth preset temperature (-7 +/-2 ℃) under the first discharging working condition, the test vehicle runs at the constant speed of a preset vehicle speed (such as 100 km/h) until the vehicle speed cannot be kept at a speed smaller than the preset vehicle speed by a preset threshold value, and the total electric quantity change E of the power battery under the first discharging working condition is recorded _battery (HS). If the environmental temperature of the test vehicle is within a first preset temperature range (23 +/-3 ℃) under a second discharge working condition, the test vehicle runs at a constant speed of a preset vehicle speed (such as 100 km/h) until the vehicle speed cannot be kept at a speed smaller than the preset vehicle speed by a preset threshold value, and the total electric quantity change E of the power battery under the second discharge working condition is recorded _battery (RM)。

And under the fourth test working condition and the first discharge working condition, the road resistance simulated by the rotary drum is 1.1 times of the road sliding resistance of the vehicle under the normal temperature condition. The error between the actual running speed of the vehicle under the first/second/fourth test working condition and the standard CLTC-P speed working condition is less than or equal to 1.5km/h, the error allowed by the actual running speed of the vehicle under the third test working condition is less than 2km/h, and the threshold value of the vehicle under the first discharge working condition and the second discharge working condition is 10km/h.

Further, in an embodiment, referring to fig. 5, the step S30 includes:

step S301, calculating to obtain the total dischargeable electric quantity of the power battery corresponding to the test vehicle under each test working condition based on the electric quantity variation of the power battery under each test working condition, wherein the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the first test working condition, the second test working condition and the third test working condition is the sum of the electric quantity variation of the power battery under each test working condition and each discharge working condition, and the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the fourth test working condition is the sum of the electric quantity variation of the power battery under each test working condition and the first discharge working condition;

step S302, calculating to obtain the power consumption per kilometer corresponding to the test vehicle under the first/second/fourth test working condition based on the variable quantity of the power battery electric quantity of the test vehicle corresponding to each CLTC-P speed working condition in the first/second/fourth test working condition, the driving mileage and the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the first/second/fourth test working condition;

step S303, calculating to obtain the power consumption per kilometer corresponding to the test vehicle under the third test working condition based on the electric quantity variation and the driving mileage of the power battery of the corresponding test vehicle under the third test working condition.

In this embodiment, the first test condition corresponds to a CLTC-P speed condition at normal temperature, the second test condition corresponds to a CLTC-P speed condition at high temperature, the third test condition is high-speed constant-speed running at normal temperature, the fourth test condition corresponds to a CLTC-P speed condition at low temperature, the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the first/second/third test conditions is the sum of the electric quantity variation of the power battery under each test condition and each discharge condition, and the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the fourth test condition is the sum of the electric quantity variation of the power battery under each test condition and the first discharge condition.

Based on the variable quantity of the electric quantity of the power battery of the test vehicle corresponding to each CLTC-P speed working condition in the first/second/fourth test working condition, the driving mileage and the total electric quantity dischargeable of the power battery corresponding to the test vehicle under the first/second/fourth test working condition, the electric consumption per kilometer corresponding to the test vehicle under the first/second/fourth test working condition can be calculated. Based on the electric quantity variation and the driving mileage of the power battery of the corresponding test vehicle under the third test condition, the power consumption per kilometer corresponding to the test vehicle under the third test condition can be calculated.

Further, in an embodiment, the step of calculating, based on the electric quantity variation, the driving mileage, and the total electric quantity dischargeable from the power battery corresponding to the test vehicle under the first/second/fourth test condition and corresponding to each CLTC-P speed condition in the first/second/fourth test condition, the electric consumption per kilometer corresponding to the test vehicle under the first/second/fourth test condition includes:

wherein c is one of CLTC-P speed working conditions under the first/second/fourth test working conditions, E _battery (c) The method comprises the steps that one CLTC-P speed working condition corresponds to the electric quantity variation of a power battery of a tested vehicle under a first test working condition, D (c) is the driving mileage of the tested vehicle corresponding to one CLTC-P speed working condition in the first test working condition, k (c) is an electric consumption weighting coefficient corresponding to one CLTC-P speed working condition in the first test working condition, and E _battery (all) is the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the first/second/fourth test working condition, n is the CLTC-P speed working condition number, and n is more than or equal to 3 and less than or equal to 5.

In this embodiment, since the power battery electric quantity variation amount of the test vehicle corresponding to each CLTC-P speed condition in the first/second/fourth test condition is different, when the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the first/second/fourth test condition is calculated, weighting processing needs to be performed to improve the accuracy of calculating the electric quantity consumption. Specifically, the step of calculating the power consumption per kilometer corresponding to the test vehicle under the first/second/fourth test condition based on the power variation, the driving mileage, and the total dischargeable power of the power battery corresponding to the test vehicle under the first/second/fourth test condition corresponding to each CLTC-P speed condition under the first/second/fourth test condition includes: inputting the power battery electric quantity variation quantity and the driving mileage of the test vehicle corresponding to each CLTC-P speed working condition in the first/second/fourth test working condition and the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the first/second/fourth test working condition into a preset calculation model, and calculating to obtain the power consumption per kilometer corresponding to the test vehicle under the first/second/fourth test working condition, wherein the preset calculation model is as follows:

Further, in an embodiment, the step of calculating, based on the electric quantity variation and the driving distance of the power battery of the test vehicle corresponding to the third test condition, the power consumption per kilometer corresponding to the test vehicle under the third test condition includes:

EC is the power consumption per kilometer corresponding to the test vehicle under the third test working condition, E _battery (CS) is the movement of the corresponding test vehicle under the third test working conditionAnd D (CS) is the driving mileage of the corresponding test vehicle under the third test working condition.

In this embodiment, since the third test condition is high-speed constant-speed running in a normal temperature environment, the power consumption per kilometer corresponding to the test vehicle under the third test condition is calculated based on the electric quantity variation and the running mileage of the power battery corresponding to the test vehicle under the third test condition. Specifically, the total dischargeable electric quantity and the driving mileage of the power battery of the corresponding test vehicle under the third test condition are input into a first formula, and the power consumption per kilometer corresponding to the test vehicle under the third test condition can be calculated, wherein the first formula is as follows:

Further, in an embodiment, the step S40 includes:

In this embodiment, the step of calculating the driving range of the test vehicle under each test condition includes: inputting the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition into a second formula, and calculating to obtain the driving range of the test vehicle under each test working condition, wherein the second formula is as follows:

wherein D is _R For the continuous driving range of the test vehicle under each test condition, E _battery (all) is total electric quantity which can be discharged by the power battery corresponding to the test vehicle under each test working condition, and EC is power consumption per kilometer corresponding to the test vehicle under each test working condition. Compared with the conventional testing method, the driving range testing method of the embodiment is based on the driving range data under the multiple use scenes of normal temperature, high temperature, low temperature, normal temperature, high speed and constant speed and the like determined by the test on the basis of realizing the rapid test, the total error of the driving range data determined by the conventional testing method can be controlled within 5%, namely the accuracy can be guaranteed, and specifically, the driving range data obtained by the conventional testing method and the rapid testing method of the embodiment is shown in the following table 1.

TABLE 1

Further, in an embodiment, after the step S10, the method includes:

wherein, EC _PG For testing the power consumption per kilometer of a vehicle under various test conditions based on an external power grid, E _AC The total electric quantity that the outside was filled electric pile and is filled after the demonstration test ended, D _R And indicating the driving range of the test vehicle under each test working condition.

In this embodiment, because there is a certain error between the power consumption per hundred kilometers based on the charging amount of the charging pile and the power consumption per hundred kilometers based on the discharging amount of the power battery, the power consumption based on the charging pile has a higher reference value for consumers. Therefore, after the step of controlling the test vehicle in the full-charge state to perform rapid discharge after running under each test working condition in sequence, the driving range under each test working condition in the battery discharge cycle is calculated, and meanwhile, the external alternating-current charging pile is controlled to charge the test vehicle to the full-charge state, and the total electric quantity charged by the external charging pile is recorded. Substituting the total electric quantity and the driving range of the test vehicle under the first/second/third/fourth test working conditions into a third formula, and calculating to obtain the power consumption per kilometer of the test vehicle under each test working condition based on the external power grid, wherein the third formula is as follows:

In the embodiment, the method for rapidly testing the driving range of the pure electric vehicle under multiple working conditions comprises the following steps: controlling the test vehicle in the full-power state to perform rapid discharge after running under each test working condition in sequence; recording test data of the test vehicle under each test working condition; based on the test data, calculating to obtain the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition; and calculating the driving range of the test vehicle under each test working condition based on the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition. The invention combines all the test working conditions to complete the test in one discharge cycle, has short test period and lower corresponding test manpower and resource cost, and ensures the accuracy of the determined driving range data under all the working conditions on the basis of achieving the purpose of quickly testing the driving range under all the working conditions.

In a third aspect, the embodiment of the invention further provides a device for quickly testing the driving range of the pure electric vehicle under multiple working conditions.

Referring to fig. 6, a functional module schematic diagram of an embodiment of a device for rapidly testing a driving range of a pure electric vehicle under multiple operating conditions.

In this embodiment, the quick testing arrangement of driving range under pure electric vehicles multiplex condition includes:

the control module 10 is used for controlling the test vehicle in the full-power state to perform rapid discharge after running under each test working condition in sequence;

the recording module 20 is used for recording test data of the test vehicle under each test working condition;

the first calculation module 30 is configured to calculate, based on the test data, total dischargeable electric quantity and power consumption per kilometer of a power battery corresponding to the test vehicle under each test working condition;

and the second calculating module 40 is configured to calculate the driving range of the test vehicle under each test working condition based on the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition.

The function realization of each module in the device for quickly testing the driving range under multiple operating conditions of the pure electric vehicle corresponds to each step in the embodiment of the method for quickly testing the driving range under multiple operating conditions of the pure electric vehicle, and the functions and the realization process are not described in detail herein.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or system comprising the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for causing a terminal device to execute the method according to the embodiments of the present invention.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A method for quickly testing the driving range of a pure electric vehicle under multiple working conditions is characterized by comprising the following steps:

recording test data of the test vehicle under each test working condition;

2. The method for rapidly testing the driving range of the pure electric vehicle under multiple working conditions according to claim 1, wherein the step of controlling the test vehicle in the full-electric state to perform rapid discharge after the test vehicle operates under each test working condition in sequence comprises the following steps:

controlling the test vehicle in a full-electricity state to run under a first test working condition;

controlling the test vehicle which runs under the third test working condition to run under a fourth test working condition after the test vehicle is cooled for a second preset time by a fan with a preset wind speed at a third preset temperature and the temperature of the oil of the speed reducer reaches a fourth preset temperature, wherein the third preset temperature is lower than the fourth preset temperature, and the fourth preset temperature is lower than the lower limit value of the first preset temperature range;

3. The method for rapidly testing the driving range of the pure electric vehicle under multiple working conditions according to claim 2, characterized by comprising the following steps:

the first test condition is as follows: the test vehicle is in a first preset temperature range, and the test vehicle repeatedly runs for a preset CLTC-P speed working condition;

the third test condition is as follows: the environment temperature of the test vehicle is in a first preset temperature range, and the test vehicle runs at a preset speed for a first preset time;

4. The method for rapidly testing the driving range of the pure electric vehicle under multiple working conditions according to claim 3, wherein the step of calculating the total dischargeable electric quantity and the electric consumption per kilometer of the power battery corresponding to the test vehicle under each test working condition based on the test data comprises the following steps:

calculating to obtain the power consumption per kilometer corresponding to the test vehicle under the first/second/fourth test working condition based on the electric quantity variation quantity and the driving mileage of the power battery of the test vehicle corresponding to each CLTC-P speed working condition in the first/second/fourth test working condition and the total dischargeable electric quantity of the power battery corresponding to the test vehicle under the first/second/fourth test working condition;

5. The method for rapidly testing the driving range of the pure electric vehicle under multiple working conditions according to claim 4, wherein the step of calculating the power consumption per kilometer corresponding to the test vehicle under the first/second/fourth test working condition based on the variation of the power battery capacity of the test vehicle, the driving range and the total dischargeable power capacity of the power battery corresponding to the test vehicle under the first/second/fourth test working condition corresponding to each CLTC-P speed working condition in the first/second/fourth test working condition comprises:

inputting the electric quantity variation quantity and the driving mileage of the power battery of the test vehicle corresponding to each CLTC-P speed working condition in the first/second/fourth test working condition and the total electric quantity which can be discharged by the power battery corresponding to the test vehicle under the first/second/fourth test working condition into a preset calculation model, and calculating to obtain the electric consumption per kilometer corresponding to the test vehicle under the first/second/fourth test working condition, wherein the preset calculation model is as follows:

6. The method for rapidly testing the driving range of the pure electric vehicle under the multiple working conditions according to claim 4, wherein the step of calculating the power consumption per kilometer corresponding to the test vehicle under the third test working condition based on the electric quantity variation and the driving range of the power battery corresponding to the test vehicle under the third test working condition comprises the following steps:

EC is the power consumption per kilometer corresponding to the test vehicle under the third test working condition, E _battery And (CS) is the electric quantity variation of the power battery of the corresponding test vehicle under the third test working condition, and D (CS) is the driving mileage of the corresponding test vehicle under the third test working condition.

7. The method for rapidly testing the driving range of the pure electric vehicle under multiple working conditions according to claim 1, wherein the step of calculating the driving range of the test vehicle under each testing working condition based on the total dischargeable electric quantity and the power consumption per kilometer of the power battery corresponding to the test vehicle under each testing working condition comprises the following steps:

8. The method for rapidly testing the driving range of the pure electric vehicle under multiple working conditions according to claim 7, wherein the step of controlling the test vehicle in the full-electric state to sequentially run under each test working condition comprises the following steps:

wherein, EC _PG For testing the power consumption per kilometer of the vehicle under various test conditions based on the external power grid, E _AC The total electric quantity charged by the external charging pile after the test is finished is shown, D _R And indicating the driving range of the test vehicle under each test working condition.

9. The utility model provides a quick testing arrangement of distance of driving under pure electric vehicles multiplex condition which characterized in that, quick testing arrangement of distance of driving under pure electric vehicles multiplex condition includes:

10. The device for rapidly testing the driving range of the pure electric vehicle under the multiple working conditions is characterized by comprising a processor, a memory and a program for rapidly testing the driving range of the pure electric vehicle under the multiple working conditions, wherein the program for rapidly testing the driving range of the pure electric vehicle under the multiple working conditions is stored in the memory and can be executed by the processor, and when the program for rapidly testing the driving range of the pure electric vehicle under the multiple working conditions is executed by the processor, the steps of the method for rapidly testing the driving range of the pure electric vehicle under the multiple working conditions are realized according to any one of claims 1 to 8.