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Hub electric drive hybrid power unmanned vehicle bench test method

A hybrid power and bench test technology, which is applied in vehicle testing, machine/structural component testing, measuring devices, etc., to achieve the effects of improving efficiency, improving research and development efficiency and testing cycle, and reducing the probability of accidents

Pending Publication Date: 2022-03-25
CHINA NORTH VEHICLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few research results on the test method of the vehicle bench test of the hub electric drive hybrid unmanned vehicle, and it is necessary to design it

Method used

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  • Hub electric drive hybrid power unmanned vehicle bench test method
  • Hub electric drive hybrid power unmanned vehicle bench test method
  • Hub electric drive hybrid power unmanned vehicle bench test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] This embodiment provides a bench test method for a 4x4 hub electric drive hybrid unmanned vehicle.

[0062] In this example, the unmanned vehicle is a 4x4 independent distributed drive control unmanned vehicle. The unmanned vehicle adopts the form of independent drive of all-wheel hub motors, double-sided differential steering and electronically controlled hydraulic braking. High-speed, precise, safe and stable motion control for people and vehicles.

[0063] like figure 1 As shown, the bench test of the unmanned vehicle is fixed on the drum test bench for testing after the unmanned vehicle is loaded. The test process is as follows:

[0064] Step 1: First, conduct a low-voltage power-on and power-off function test:

[0065] Low-voltage power-on function test: Turn on the low-voltage power-on switch of the vehicle to test whether the unmanned vehicle can be powered on normally;

[0066] Low-voltage power-off function test: Turn off the low-voltage power-on switch of t...

Embodiment 2

[0115] On the basis of the above embodiment 1, further describe in detail the test procedure of the vehicle drive control function in step 12.

[0116] Firstly, the distributed motion coordination control system architecture of the 4x4 distributed drive control unmanned vehicle is described to illustrate the principle of the vehicle drive control function test.

[0117] The architecture of the unmanned vehicle distributed motion coordination control system is as follows: figure 2 As shown, the unmanned vehicle distributed motion coordination control system includes a drive motor controller, a brake controller, and a steering motor controller set on the unmanned vehicle chassis; a remote control intention analysis module and a torque coordination distribution module set on the vehicle side.

[0118] The remote control intention analysis module receives the remote control instruction, analyzes the remote control intention, and constrains the vehicle to drive within the expected...

Embodiment 3

[0143] On the basis of the above-mentioned embodiment 1 and embodiment 2, after the basic function test of the unmanned vehicle is completed, it is necessary to carry out the inspection and test of special working conditions, that is, the abnormal state safety control function test. The test process is as follows:

[0144] Step 15: Short-distance remote control-related abnormal state safety control function test:

[0145]The test requirements are: when maneuvering in the short-range remote control driving mode, when the wireless signal of the short-range remote control is interrupted by interference, the unmanned vehicle should be able to automatically stop in an emergency. When maneuvering in other driving modes such as remote control / autonomous, when the wireless signal of the short-range remote control is interrupted, the unmanned vehicle cannot automatically stop in an emergency (this special working condition can be simulated by manually turning off the power of the short-...

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Abstract

According to the hub electric drive hybrid power unmanned vehicle bench test method provided by the invention, the whole vehicle bench test process of the hub electric drive hybrid power unmanned vehicle is designed, the bench test of the hub electric drive hybrid power unmanned vehicle can be effectively guided, and the new vehicle debugging progress is accelerated. The bench test method is used for sequentially carrying out the following tests on the unmanned vehicle after loading of the hub electric drive hybrid power unmanned vehicle: low-voltage power-on and power-off function tests; testing the bus function of the whole vehicle; testing high-voltage power-on and power-off functions; testing a chassis control enabling function; testing a short-range remote control driving function; testing an automatic parking function; testing an emergency stop function; testing a heat dissipation control function of the driving device; testing a hybrid power control function; testing light and horn control functions; testing a vehicle posture system control function; testing a whole vehicle driving control function; testing the maximum driving speed of the unmanned vehicle; and testing the maximum driving range of the unmanned vehicle.

Description

technical field [0001] The invention relates to a bench test method for an unmanned vehicle, in particular to a bench test method for a hub electric drive hybrid unmanned vehicle, and belongs to the technical field of bench tests for unmanned vehicles. Background technique [0002] Compared with traditional drive forms, distributed electric drive vehicles install the drive motor directly in or near the drive wheels, which can simplify the power transmission system, improve vehicle mobility, and increase the freedom of overall vehicle design and other outstanding features. [0003] The bench test is a functional and performance testing test that must be carried out after the vehicle lands. Compared with traditional vehicles, unmanned vehicles do not need to test the crash test for occupant protection, the pedestrian protection test for pedestrian protection, or even the active safety test of the vehicle. The bench test of the wheel-hub electric drive hybrid unmanned vehicle ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 李胜飞汪洋于华超程文赵熙俊崔星高天云苏波
Owner CHINA NORTH VEHICLE RES INST
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