Vehicle energy consumption test device

Abstract

The utility model provides a vehicle energy consumption test device. The vehicle energy consumption test device comprises a test bench and a reaction frame located on one side of the Y direction of the test bench. The test bed comprises a plurality of transmission units arranged in the X direction, the end of each transmission unit is connected with a rail wheel, the rail wheels are rotationally arranged on the reaction frame, longitudinal positioning assemblies are oppositely arranged at the two ends of the reaction frame in the Y direction, and the longitudinal positioning assemblies are located on the two outer sides of the rail wheels. The X direction and the Y direction are perpendicular to each other on the same overlook projection plane. According to the utility model, through the arrangement of the test bench with the transmission unit, the track wheels can output different speeds, and the track wheels and the wheels of the tested vehicle rotate in opposite directions so as to simulate the line resistance to carry out an energy consumption test and measure the energy consumption at different speeds.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail transit vehicle test technical field especially, relate to a kind of vehicle energy consumption test device. BACKGROUND

[0002] Energy storage type electric power traction transportation system is constituted by energy storage type vehicle, large capacity super capacitor module, station ground rapid charging station, shared public road right communication signal system etc..It has the good image of resource-conserving and environment-friendly.In order to develop new energy storage type vehicle or optimize existing energy storage type vehicle, energy consumption evaluation test is often needed.

[0003] Existing energy storage type vehicle energy consumption test is tested on actual line, only energy consumption of the next operation can be measured, qualitative evaluation of energy consumption under different speeds cannot be carried out, which is not very friendly to the development of new energy storage type vehicle. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of vehicle energy consumption test device, and energy consumption under different speeds can be measured.

[0005] The technical scheme of the utility model is: a kind of vehicle energy consumption test device, including test table and the counterforce frame located in the Y direction side of the test table;The test table includes a plurality of transmission units arranged along the X direction, the end of each transmission unit is connected with a track wheel, the track wheel is rotatably arranged on the counterforce frame, the two ends of the counterforce frame in Y direction are oppositely provided with longitudinal positioning assembly, and the longitudinal positioning assembly is located at the two outer sides of the track wheel;The X direction and Y direction are perpendicular to each other on the same overhead projection plane.

[0006] In the above scheme, by setting the test table with transmission unit, different speeds can be output by track wheel, and the track wheel and the wheel of the vehicle under test rotate reversely to simulate line resistance for energy consumption test, to measure energy consumption under different speeds;In addition, the counterforce frame and the track wheel are used to position and fix the vehicle under test, to better carry out test.

[0007] Speed sensor can be connected on the side of track wheel to measure the speed of track wheel, and then the speed of track wheel is calculated by track wheel radius, to measure the network side power of vehicle under test, running fixed time under different speeds, and then to calculate the power consumption per unit time of vehicle kWh / min.

[0008] Preferably, the counterforce frame includes second platform and third platform located at two ends of the second platform, the third platform is higher than the second platform, one end of the longitudinal positioning assembly is installed on the third platform, the other end of the longitudinal positioning assembly extends above the second platform, and the track wheel is arranged on the second platform.

[0009] Preferably, the longitudinal positioning assembly comprises a support connected to the third platform, a tension shaft mounted on the support and extending towards the second platform, and a car hook connected to the end of the tension shaft.

[0010] Preferably, the plurality of transmission units are connected through a synchronous support unit.

[0011] Preferably, the transmission unit comprises a driving source and a transmission shaft connected to the driving source, and the transmission shaft is connected with the track wheel.

[0012] Compared with the related art, the utility model has the advantages that:

[0013] Firstly, the utility model has the transmission unit, so that the track wheel can output different speeds, and the track wheel and the wheels of the tested vehicle rotate reversely to simulate the line resistance for energy consumption test and measure the energy consumption under different speeds.

[0014] Secondly, the utility model adopts the counterforce frame and the track wheel to position and fix the tested vehicle, so that the test can be better performed.

[0015] Thirdly, the utility model adopts the synchronous support unit to connect the plurality of transmission units, so that the speeds of the plurality of transmission units are consistent, and the problem that the actual line cannot continuously run at a fixed speed is solved.

[0016] Fourthly, the utility model can better and more truly study the energy consumption of the energy storage vehicle under different speeds, and provide better support for the design, optimization and performance verification of the energy storage vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides a vehicle energy consumption test device's front view structural schematic diagram;

[0018] Figure 2 The utility model provides a vehicle energy consumption test device's plan view structural schematic diagram.

[0019] In the drawings: 1, test table; 11, first platform; 12, transmission unit; 121, driving source; 122, transmission shaft; 13, track wheel; 14, synchronous support unit; 2, counterforce frame; 21, second platform; 22, third platform; 23, longitudinal positioning assembly; 231, support; 232, tension shaft; 233, car hook; 3, vehicle. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0021] like Figure 1 , Figure 2 As shown, this embodiment provides a vehicle energy consumption testing device including a test bench 1 and a reaction frame 2 located on one side of the test bench 1 in the Y direction. The test bench 1 includes a first platform 11 and multiple transmission units 12 arranged on the first platform 11 along the X direction. The number of transmission units 12 corresponds one-to-one with the number of wheels on a single vehicle 3. Each transmission unit 12 includes a drive source 121 and a drive shaft 122 connected to the drive source 121. The drive source 121 can be a combination of a motor and a gearbox. The gearboxes are connected to each other through a synchronous support unit 14 to ensure that the output speed of the multiple transmission units 12 is consistent. A track wheel 13 is connected to the end of the drive shaft 122. The track wheel 13 is rotatably mounted on the reaction frame 2. Longitudinal positioning components 23 are provided opposite to each other at both ends of the reaction frame 2 in the Y direction, and the longitudinal positioning components 23 are located on the two outer sides of the track wheel 13. The X direction and the Y direction are perpendicular to each other on the same top projection plane.

[0022] The reaction frame 2 includes a second platform 21 and a third platform 22 located at both ends of the second platform 21, the third platform 22 being higher than the second platform 21. The longitudinal positioning assembly 23 includes a support 231 connected to the third platform 22, a tension shaft 232 mounted on the support 231 and extending towards the second platform 21, and a coupler 233 connected to the extended end of the tension shaft 232. The two longitudinal positioning assemblies 23 in the Y direction are symmetrically arranged. The extended end of the tension shaft 232 is located above the second platform 21. The track wheel 13 is mounted on the second platform 21.

[0023] The test method for the vehicle energy consumption test device provided by this utility model includes the following steps:

[0024] S1, the vehicle 3 to be tested is installed on the track wheel 13 of the test bench 1, and the wheels on the vehicle 3 are made to contact the track wheel 13 one by one; then the hook 233 on the reaction frame 2 is connected to the hook of the vehicle 3 to achieve longitudinal positioning of the vehicle 3.

[0025] S2, install voltage and current sensors at the output of each energy storage module of vehicle 3, install speed and torque sensors on drive shaft 122, and then install test system cables.

[0026] S3, arranging the counterweight in the vehicle 3 to simulate the bearing load;

[0027] S4, providing traction power by the contact net through the control system of the test bed 1, the vehicle 3 rises the bow to be full of charge, and then falls the bow;

[0028] S5, starting the vehicle 3 to run at a specified speed, starting the transmission unit 12, and driving the track wheel 13 to run in the opposite direction of the wheel of the vehicle 3 to simulate the resistance. The running resistance in the actual line can be simulated through the test bed 1 according to the basic running resistance formula of the vehicle 3;

[0029] S6, recording the output voltage and current of each energy storage module of the vehicle 3 during the running of the vehicle 3, calculating the power of each energy storage module, and then calculating the energy consumption value through time integration;

[0030] S7, after running for a specified time, the test bed 1 is slowly unloaded to zero through the control system of the test bed 1, and then the vehicle 3 is slowly decelerated to zero, and the test is ended;

[0031] S8, comparing the running mileage and energy consumption in a specified time, the energy consumption value consumed by the vehicle 3 per kilometer running at a specified speed is calculated.

[0032] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is included in the patent protection range of the present application.

Claims

1. A vehicle energy consumption testing device, comprising a test bench (1), characterized in that, It also includes a reaction frame (2) located on the Y-direction side of the test bench (1); the test bench (1) includes multiple transmission units (12) arranged along the X-direction, each transmission unit (12) has a track wheel (13) connected to its end, the track wheel (13) is rotatably mounted on the reaction frame (2), the two ends of the reaction frame (2) in the Y-direction are provided with longitudinal positioning components (23), the longitudinal positioning components (23) are located on the two outer sides of the track wheel (13); the X-direction and the Y-direction are perpendicular to each other on the same top projection plane.

2. The vehicle energy consumption testing device according to claim 1, characterized in that, The reaction frame (2) includes a second platform (21) and a third platform (22) located at both ends of the second platform (21). The third platform (22) is higher than the second platform (21). One end of the longitudinal positioning component (23) is installed on the third platform (22), and the other end of the longitudinal positioning component (23) extends above the second platform (21). The track wheel (13) is located on the second platform (21).

3. The vehicle energy consumption testing device according to claim 2, characterized in that, The longitudinal positioning component (23) includes a support (231) connected to the third platform (22), a tension shaft (232) mounted on the support (231) and extending toward the second platform (21), and a coupler (233) connected to the extended end of the tension shaft (232); the two longitudinal positioning components (23) in the Y direction are symmetrically arranged.

4. The vehicle energy consumption testing device according to claim 1, characterized in that, Multiple transmission units (12) are connected by a synchronous support unit (14).

5. The vehicle energy consumption testing device according to claim 1, characterized in that, The transmission unit (12) includes a drive source (121) and a drive shaft (122) connected to the drive source (121), the drive shaft (122) being connected to the track wheel (13).

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