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Separation collaborative testing method and system for automobile power assembly

An automotive powertrain and power system technology, applied in the field of separation and collaborative testing methods and systems for automotive powertrains, can solve problems such as difficulty in obtaining performance data, differences between simulated signals and real signals, and difficulty in testing map parameters, etc. achieve the effect of improving work efficiency

Active Publication Date: 2019-07-30
CHINA AUTOMOTIVE TECH & RES CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the speed limit, torque limit, power limit, various faults, and various protections of the power system disassembled on the vehicle, it is difficult to obtain its true and complete performance data, especially it is difficult to test its complete map parameters
At present, half-physical simulation methods are mostly used in the industry to remove various restrictions and protections. However, due to the static state of the vehicle or other parts except the power system, or the difference between the simulated signal and the real signal, any There will be some testing limitations

Method used

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  • Separation collaborative testing method and system for automobile power assembly
  • Separation collaborative testing method and system for automobile power assembly
  • Separation collaborative testing method and system for automobile power assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1, such as figure 1 , 2 As shown, when testing for ordinary models:

[0024] In this embodiment, the cooperative testing system mainly includes the chassis dynamometer laboratory LP and the engine laboratory LE; the chassis dynamometer laboratory LP is equipped with a vehicle assembly 1, a vehicle system dynamometer 2, and an original vehicle power control system. Unit 3 and the replacement motor 9; the power system 4 and the dynamometer unit 5 of the power system are set in the engine test room LE; in addition, the cooperative test system also includes the control cabinet unit 6 of the dynamometer unit of the vehicle system and the power system dynamometer unit. The control cabinet unit 7 of the power machine unit replaces the motor control cabinet unit 8.

[0025] In the engine test room LE, the engine assembly in the power system 4 is connected to the dynamometer unit 5 of the power system through a connecting shaft and a connecting plate, and the dynamomet...

Embodiment 2

[0040] Example 2, such as image 3 As shown, when testing for self-developed vehicles:

[0041] In this embodiment, in addition to the system composition described in Embodiment 1, the original vehicle power control unit 3 is also connected to the control cabinet unit 7 of the dynamometer unit of the power system and the replacement motor control cabinet unit 8 through the CAN bus.

[0042] In this embodiment, the test method includes:

[0043]S201. Remove the engine assembly from the vehicle assembly 1, replace the removed engine assembly of the original vehicle with a frequency conversion control motor (referred to as a replacement motor in the embodiment of the present invention), and the replacement motor 9 is connected to the shaft through a corresponding connection plate Connect with the remaining part of the original car after removing the engine assembly;

[0044] S202. Place the engine assembly on the test bench of the dynamometer in the engine laboratory LE, and th...

Embodiment 3

[0050] Example 3, such as Figure 4 As shown, when testing for ordinary models:

[0051] In this embodiment, the power system 4 includes an engine assembly and a gearbox assembly, and the corresponding collaborative test system also includes an original vehicle gearbox control unit, which is connected to the gearbox assembly through an extension wire harness. The gearbox control unit is connected to the vehicle assembly 1 through an extension wire harness, and the rest of the collaborative testing system and the connection method are the same as those in Embodiment 1.

[0052] In this embodiment, the test method includes:

[0053] S301. Remove the power system 4 (including the engine assembly and gearbox assembly) from the vehicle assembly 1, and replace the removed power system 4 of the original vehicle with a frequency conversion control motor (referred to as a replacement motor in the embodiment of the present invention) , the replacement motor 9 is connected to the remai...

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Abstract

The invention provides a testing method for an automobile power assembly. An original vehicle system and a power system thereof are separated, the power system is replaced with a replacing motor, a vehicle system is reconstituted, and performance indexes of the power system and a power transmission system in the vehicle system are tested collaboratively. The invention further provides a testing system for the automobile power assembly on the other hand, the testing system comprises a power system test bed and a vehicle system test bed, and the power system test bed comprises the power system and a testing system body of the power system; and the vehicle system test bed comprises the reconstituted vehicle system, the power transmission system thereof and a testing system body of the vehiclesystem, and the testing system is used for collaboratively testing the performance indexes of the power system and the power transmission system of the vehicle system. Through the testing system andmethod, the performance characteristics of an engine assembly in any vehicle or any power assembly system and the performance characteristics of the transmission system can be tested in an unconstrained mode.

Description

technical field [0001] The invention belongs to the field of vehicle testing systems, in particular to a separation and coordination testing method and system for vehicle powertrains. Background technique [0002] When developing an automobile power system, it is necessary to know the performance of the power system when it is installed on the vehicle or when it is matched to the powertrain when the power system is in the state of the test bench. The map performance of the power system in the bench state. Since the performance of the vehicle power system installed on the vehicle is not exactly the same as that on the test bench, it is necessary to test the performance of the vehicle and the performance of the test bench separately. [0003] Due to the speed limit, torque limit, power limit, various faults, and various protections of the power system disassembled on the vehicle, it is difficult to obtain its true and complete performance data, especially to test its complete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007G01M15/04
CPCG01M15/04G01M17/007
Inventor 于镒隆刘双喜高继东
Owner CHINA AUTOMOTIVE TECH & RES CENT