CN113834651A - Method for carrying out durability test of rated power of range-extending transmission on rack - Google Patents
Method for carrying out durability test of rated power of range-extending transmission on rack Download PDFInfo
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- CN113834651A CN113834651A CN202111107266.2A CN202111107266A CN113834651A CN 113834651 A CN113834651 A CN 113834651A CN 202111107266 A CN202111107266 A CN 202111107266A CN 113834651 A CN113834651 A CN 113834651A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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Abstract
A method for carrying out a rated power endurance test of a range-extending transmission on a rack belongs to the technical field of transmission tests. Fixing the range-extending hybrid power assembly on a hybrid power assembly test bed; connecting the output end of the electrically driven transmission with a dynamometer; installing an air inlet system and an exhaust system of the engine; mounting a shifting device of an electrically driven transmission; connecting the water cooling system and the oil cooling system with cooling equipment; adding cooling liquid and lubricating oil into the extended-range hybrid power assembly; installing a high-voltage power supply cable and a low-voltage electrical control system wire harness of the extended-range hybrid power assembly; adjusting parameters of a battery simulator of the hybrid power assembly test bed and parameters of the whole vehicle; carrying out a working condition test; the range-extended hybrid power assembly is detached from the hybrid power assembly test bed for decomposition and inspection. The invention greatly improves the safety of the test, improves the test period and quickens the research and development progress of the range-extending transmission product.
Description
Technical Field
The invention relates to a method for carrying out a rated power durability test on a range-extending transmission on a rack, belonging to the technical field of transmission tests.
Background
Under the rapid development of new energy automobile technology, the number of vehicle types equipped with the range-extended hybrid transmission is increasing. In the process of developing a range-extended hybrid transmission product, the durability test verification of the transmission is an important link. Compared with the traditional transmission, the range-extending transmission is additionally provided with a double-motor system, one motor is used as a driving system to drive the automobile to run, and the other motor is used as a power generation system to provide electric quantity for the driving motor. The engine provides torque for the generator during operation and converts mechanical power into electric power through the generator to output as electric quantity for the driving motor to use.
In the operation process of the range-extended hybrid transmission, the double motors are mostly in the working states of rated power and below the rated power, and the rated power operation point of the transmission needs to be checked in product development. The current main test means is a real vehicle road running test, and the test has risks and is limited by the external environment, so that the durability test of rated power on a power assembly rack is a very effective test method.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a method for carrying out a rated power endurance test on a range-extending transmission on a rack.
The invention adopts the following technical scheme: a method of conducting a power rating durability test for an extended range transmission on a rig, the method comprising the steps of:
s1: fixing the range-extending hybrid power assembly on a hybrid power assembly test bed;
s2: connecting the output end of an electrically driven transmission of the range-extended hybrid power assembly with a dynamometer of a hybrid power assembly test bed;
s3: installing an air intake system and an exhaust system of an engine of the extended-range hybrid power assembly;
s4: a gear shifting device of an electrically driven transmission provided with an extended range hybrid power assembly;
s5: connecting a water cooling system and an oil cooling system of the range-extending hybrid power assembly with cooling equipment of a hybrid power assembly test bed;
s6: adding cooling liquid and lubricating oil into the extended-range hybrid power assembly;
s7: installing a high-voltage power supply cable and a low-voltage electrical control system wire harness of the extended-range hybrid power assembly;
s8: adjusting parameters of a battery simulator of the hybrid power assembly test bed and parameters of the whole vehicle;
s9: carrying out a working condition test;
s10: the range-extended hybrid power assembly is detached from the hybrid power assembly test bed for decomposition and inspection.
Compared with the prior art, the invention has the beneficial effects that:
the test of the invention is carried out on the hybrid power assembly test bed, and the durability check of the range-extended transmission can be completed under the condition that the whole vehicle test resource carrying is not available in the initial development stage of a prototype; the condition of the road working condition of the real vehicle can be simulated, a driver is not needed, and the safety of the test is greatly improved; the problem that the test progress is seriously influenced by the restriction of road and weather conditions when the endurance check is carried out in the real vehicle road test is solved, the test period is prolonged, and the research and development progress of the range-extending transmission product is accelerated.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
A method of conducting a power rating durability test for an extended range transmission on a rig, the method comprising the steps of:
s1: fixing an extended range type hybrid power assembly (an engine and a three-in-one electric drive transmission) on a mounting bottom plate of a hybrid power assembly test bed, using a real vehicle suspension bracket and a rubber pier during mounting, and enabling the carrying angle of the hybrid power assembly to be consistent with that of a real vehicle;
s2: connecting the output end of an electrically driven transmission of the range-extended hybrid power assembly with a dynamometer of a hybrid power assembly test bed by using a real vehicle half shaft;
s3: the air intake system and the exhaust system of the engine provided with the range-extended hybrid power assembly both use an air intake component and an exhaust component of a real vehicle;
s4: the gear shifting device of the electrically driven transmission provided with the range-extended hybrid power assembly is connected with a gear shifting actuating mechanism of a hybrid power assembly test bed by using a real vehicle gear shifting handle and a gear shifting steel cable;
s5: connecting a water cooling system and an oil cooling system of the range-extending hybrid power assembly with cooling equipment of a hybrid power assembly test bed;
s6: adding cooling liquid and lubricating oil into the extended-range hybrid power assembly;
s7: installing a high-voltage power supply cable and a low-voltage electrical control system wire harness of the extended-range hybrid power assembly;
s8: adjusting parameters of a battery simulator of the hybrid power assembly test bed and parameters of the whole vehicle;
s9: the working condition test method comprises the following steps:
s901: the torque of a driving motor of the extended range hybrid power assembly is increased from 0Nm to 218Nm, so that the rotating speed of a dynamometer of a test bed of the hybrid power assembly is increased from 0rpm to 289rpm, and the dynamometer stably runs for 71s after the rotating speed and the torque reach set values;
s902: the torque of a driving motor of the range-extended hybrid power assembly is reduced from 218Nm to 136Nm, so that the rotating speed of a dynamometer of a test bed of the hybrid power assembly is increased from 289rpm to 462rpm, and the dynamometer stably runs for 159s after the rotating speed and the torque reach set values;
s903: the torque of a driving motor of the range-extended hybrid power assembly is reduced from 136Nm to 91Nm, so that the rotating speed of a dynamometer of a test bed of the hybrid power assembly is increased from 462rpm to 693rpm, and the dynamometer stably runs for 460s after the rotating speed and the torque reach set values;
s904: the torque of a driving motor of the range-increasing hybrid power assembly is reduced from 91Nm to 68Nm, so that the rotating speed of a dynamometer of a hybrid power assembly test bed is increased from 693rpm to 923rpm, and the dynamometer stably runs for 459s after the rotating speed and the torque reach set values;
s905: the torque of a driving motor of the range-extended hybrid power assembly is reduced from 68Nm to 49Nm, so that the rotating speed of a dynamometer of a test bed of the hybrid power assembly is increased from 923rpm to 1270rpm, and the dynamometer stably runs for 341s after the rotating speed and the torque reach set values;
s906: the torque of a driving motor of the range-extended hybrid power assembly is reduced from 49Nm to 45Nm, so that the rotating speed of a dynamometer of a hybrid power assembly test bed is increased from 1270rpm to 1385rpm, and the dynamometer stably runs for 225s after the rotating speed and the torque reach set values;
s907: the torque of a driving motor of the extended range hybrid power assembly is reduced from 49Nm to 0Nm, the rotating speed of a dynamometer of a hybrid power assembly test bench is reduced from 1385rpm to 231rpm, and idling cooling is carried out until the temperature of a stator of the driving motor is reduced to below 50 ℃.
S908: repeating the steps of the S901 to the S907 for 600 times in total;
s10: and after the working condition test operation is finished, the extended range type hybrid power assembly is detached from the hybrid power assembly test bed for decomposition and inspection.
The test device used by the test method is a hybrid power assembly test bed, and the tested part is an extended-range hybrid power assembly (an engine and a three-in-one electrically-driven transmission). During testing, the tested range-extending hybrid power assembly is installed on a hybrid power assembly test bed, a real vehicle part is used for a feeding device system, an exhaust system, a half shaft and a suspension of the range-extending hybrid power assembly, a dynamometer of the hybrid power assembly test bed simulates a real vehicle wheel to provide road resistance, and a battery simulator simulates a real vehicle battery to provide electric energy for a driving motor and absorb the electric energy generated by a generator.
The invention realizes the evaluation requirement of the rated power durability of the range-extended transmission, can verify the whole durability of the range-extended transmission and the engine matched with the range-extended transmission and the durability of each key part, and can also verify the reliability of the TCU, the ECU and the motor controller.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (2)
1. A method for carrying out a rated power endurance test of a range-extended transmission on a bench is characterized in that: the method comprises the following steps:
s1: fixing the range-extending hybrid power assembly on a hybrid power assembly test bed;
s2: connecting the output end of an electrically driven transmission of the range-extended hybrid power assembly with a dynamometer of a hybrid power assembly test bed;
s3: installing an air intake system and an exhaust system of an engine of the extended-range hybrid power assembly;
s4: a gear shifting device of an electrically driven transmission provided with an extended range hybrid power assembly;
s5: connecting a water cooling system and an oil cooling system of the range-extending hybrid power assembly with cooling equipment of a hybrid power assembly test bed;
s6: adding cooling liquid and lubricating oil into the extended-range hybrid power assembly;
s7: installing a high-voltage power supply cable and a low-voltage electrical control system wire harness of the extended-range hybrid power assembly;
s8: adjusting parameters of a battery simulator of the hybrid power assembly test bed and parameters of the whole vehicle;
s9: carrying out a working condition test;
s10: the range-extended hybrid power assembly is detached from the hybrid power assembly test bed for decomposition and inspection.
2. The method for conducting a power rating durability test of a range-extending transmission on a bench of claim 1, wherein: the test method of the working condition in S9 comprises the following steps:
s901: the torque of a driving motor of the extended range hybrid power assembly is increased from 0Nm to 218Nm, so that the rotating speed of a dynamometer of a test bed of the hybrid power assembly is increased from 0rpm to 289rpm, and the hybrid power assembly runs for 71s after the rotating speed and the torque reach set values;
s902: the torque of a driving motor of the range-extended hybrid power assembly is reduced from 218Nm to 136Nm, so that the rotating speed of a dynamometer of a test bed of the hybrid power assembly is increased from 289rpm to 462rpm, and the dynamometer is operated for 159s after the rotating speed and the torque reach set values;
s903: the torque of a driving motor of the range-extended hybrid power assembly is reduced from 136Nm to 91Nm, so that the rotating speed of a dynamometer of a test bed of the hybrid power assembly is increased from 462rpm to 693rpm, and the dynamometer is operated for 460s after the rotating speed and the torque reach set values;
s904: the torque of a driving motor of the range-increasing hybrid power assembly is reduced from 91Nm to 68Nm, so that the rotating speed of a dynamometer of a hybrid power assembly test bed is increased from 693rpm to 923rpm, and the operation is carried out for 459s after the rotating speed and the torque reach set values;
s905: the torque of a driving motor of the range-extended hybrid power assembly is reduced from 68Nm to 49Nm, so that the rotating speed of a dynamometer of a test bed of the hybrid power assembly is increased from 923rpm to 1270rpm, and the dynamometer is operated for 341s after the rotating speed and the torque reach set values;
s906: the torque of a driving motor of the range-increasing hybrid power assembly is reduced from 49Nm to 45Nm, so that the rotating speed of a dynamometer of a hybrid power assembly test bench is increased from 1270rpm to 1385rpm, and the dynamometer is operated for 225s after the rotating speed and the torque reach set values;
s907: the torque of a driving motor of the extended range hybrid power assembly is reduced from 49Nm to 0Nm, the rotating speed of a dynamometer of a hybrid power assembly test bench is reduced from 1385rpm to 231rpm, and idling cooling is carried out until the temperature of a stator of the driving motor is reduced to below 50 ℃.
S908: repeating S901-S907 for 600 cycles.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111107266.2A CN113834651A (en) | 2021-09-22 | 2021-09-22 | Method for carrying out durability test of rated power of range-extending transmission on rack |
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| CN202111107266.2A CN113834651A (en) | 2021-09-22 | 2021-09-22 | Method for carrying out durability test of rated power of range-extending transmission on rack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114878044A (en) * | 2022-05-13 | 2022-08-09 | 哈尔滨东安汽车发动机制造有限公司 | WLTC (wafer level test) working condition-based efficiency testing and evaluating method for hybrid power transmission |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507209A (en) * | 2011-10-20 | 2012-06-20 | 重庆长安汽车股份有限公司 | Test stand for reliability of series-connection extended-range pure electric automobile power assembly |
| CN203719914U (en) * | 2014-01-21 | 2014-07-16 | 北京汽车新能源汽车有限公司 | Power assembly test bench for extended range electric vehicle |
| CN207487981U (en) * | 2017-11-29 | 2018-06-12 | 哈尔滨东安汽车发动机制造有限公司 | A kind of P2 frameworks hybrid power bench test device |
| CN109100156A (en) * | 2018-07-12 | 2018-12-28 | 哈尔滨东安汽车发动机制造有限公司 | A kind of driving of P2 framework hybrid power assembly is endurance test method |
| CN110220719A (en) * | 2019-06-25 | 2019-09-10 | 哈尔滨东安汽车发动机制造有限公司 | A kind of real vehicle sliding wear of simulating on rack is started to walk durable test method |
| CN110596590A (en) * | 2019-10-23 | 2019-12-20 | 上海元城汽车技术有限公司 | Reliability test method of range extender system |
| CN112213114A (en) * | 2020-09-03 | 2021-01-12 | 哈尔滨东安汽车发动机制造有限公司 | Durability test method for extended-range three-in-one electric drive system assembly rack |
-
2021
- 2021-09-22 CN CN202111107266.2A patent/CN113834651A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507209A (en) * | 2011-10-20 | 2012-06-20 | 重庆长安汽车股份有限公司 | Test stand for reliability of series-connection extended-range pure electric automobile power assembly |
| CN203719914U (en) * | 2014-01-21 | 2014-07-16 | 北京汽车新能源汽车有限公司 | Power assembly test bench for extended range electric vehicle |
| CN207487981U (en) * | 2017-11-29 | 2018-06-12 | 哈尔滨东安汽车发动机制造有限公司 | A kind of P2 frameworks hybrid power bench test device |
| CN109100156A (en) * | 2018-07-12 | 2018-12-28 | 哈尔滨东安汽车发动机制造有限公司 | A kind of driving of P2 framework hybrid power assembly is endurance test method |
| CN110220719A (en) * | 2019-06-25 | 2019-09-10 | 哈尔滨东安汽车发动机制造有限公司 | A kind of real vehicle sliding wear of simulating on rack is started to walk durable test method |
| CN110596590A (en) * | 2019-10-23 | 2019-12-20 | 上海元城汽车技术有限公司 | Reliability test method of range extender system |
| CN112213114A (en) * | 2020-09-03 | 2021-01-12 | 哈尔滨东安汽车发动机制造有限公司 | Durability test method for extended-range three-in-one electric drive system assembly rack |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114878044A (en) * | 2022-05-13 | 2022-08-09 | 哈尔滨东安汽车发动机制造有限公司 | WLTC (wafer level test) working condition-based efficiency testing and evaluating method for hybrid power transmission |
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