CN111175048A - Engine performance benchmarking test system for automatic transmission vehicle and use method - Google Patents
Engine performance benchmarking test system for automatic transmission vehicle and use method Download PDFInfo
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- CN111175048A CN111175048A CN202010111408.1A CN202010111408A CN111175048A CN 111175048 A CN111175048 A CN 111175048A CN 202010111408 A CN202010111408 A CN 202010111408A CN 111175048 A CN111175048 A CN 111175048A
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- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
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Abstract
The invention relates to the technical field of automobile testing, in particular to an engine performance benchmarking test system for an automatic transmission vehicle and a using method thereof, wherein the test system comprises a vehicle controller which is electrically connected with an engine and a gearbox; the engine test bench device can be in transmission connection with the engine to test the rotating speed and torque of the engine and the combustion and emission of fuel; the gearbox driving device comprises a driving execution device and a driving control device, the driving control device is electrically connected with the driving execution device, the driving execution device is used for being in transmission connection with the gearbox, and the driving control device is configured to be capable of controlling the gearbox to synchronously rotate with the engine; and the wheel rotating speed signal processing device is electrically connected with the vehicle controller and is used for acquiring the rotating speed of a front wheel connected with the gearbox and transmitting the rotating speed to the vehicle controller. The invention can realize synchronous operation of the gearbox and the engine, thereby ensuring smooth performance of the engine calibration test of the automatic-gear vehicle.
Description
Technical Field
The invention relates to the technical field of automobile testing, in particular to an engine performance benchmarking test system for an automatic transmission vehicle and a using method thereof.
Background
In the process of the performance benchmarking test of the engine bench, the engine needs to be detached from the whole vehicle and installed on the bench for testing. In order to enable the engine to operate normally, it is necessary to ensure that the vehicle controller can normally acquire the rotating speed signal, and ensure that the operating state of the engine on the stand is consistent with the state of the engine on the whole vehicle.
The existing engine bench alignment test system can generate a simulated wheel speed signal corresponding to the rotating speed and the gear of an engine and feed the simulated wheel speed signal back to a vehicle controller of a vehicle during testing, so that the vehicle is guaranteed not to have faults, and the engine is guaranteed to run normally.
However, for a vehicle matched with an automatic transmission, synchronous operation of the transmission and an engine must be ensured, and a vehicle controller can acquire a rotating speed signal from the transmission in real time to ensure that the vehicle controller of the vehicle does not generate a fault, so that the engine is ensured to work in a normal state. However, in the prior art, synchronous operation of the gearbox and the engine cannot be effectively realized.
Therefore, a system and method for testing engine performance of an automatic transmission vehicle is needed to solve the above technical problems.
Disclosure of Invention
The invention aims to provide an engine performance benchmarking test system for an automatic-gear vehicle and a using method thereof, which can realize synchronous operation of a gearbox and an engine, enable a vehicle controller to acquire a rotating speed signal from the gearbox in real time, ensure that the vehicle controller of the vehicle does not generate faults, and further ensure that the engine benchmarking test of the automatic-gear vehicle is smoothly carried out.
In order to achieve the purpose, the invention adopts the following technical scheme:
an engine performance benchmarking test system for an automatic transmission vehicle, comprising:
a vehicle controller for electrically connecting the engine and the transmission;
an engine test rig apparatus driveably connectable to the engine for testing the speed and torque of the engine and the combustion and emissions of fuel;
the gearbox driving device comprises a driving execution device and a driving control device, the driving control device is electrically connected with the driving execution device, the driving execution device is used for being in transmission connection with the gearbox, and the driving control device is configured to be capable of controlling the driving execution device to drive the gearbox to synchronously rotate with the engine;
and the wheel rotating speed signal processing device is electrically connected with the vehicle controller and is used for acquiring the rotating speed of a front wheel connected with the gearbox and transmitting the rotating speed to the vehicle controller.
Optionally, the vehicle testing system further comprises a bench control device, and the bench control device is electrically connected with the vehicle controller, the engine testing bench device, the driving control device and the wheel rotating speed signal processing device.
Optionally, the engine test bench device comprises a dynamometer and an analysis device, the dynamometer is in transmission connection with the engine to test the rotating speed and the torque of the engine; the analysis device can be connected with the engine to test the combustion and emission of fuel, and the dynamometer is electrically connected with the bench control device.
Optionally, the analysis device comprises a combustion analyzer connected with the engine for analyzing the combustion condition of the fuel and an emission analyzer connected with the engine for analyzing the emission condition of the exhaust gas.
Optionally, the drive executing device comprises a drive motor and a transmission assembly, an output shaft of the drive motor is connected with the transmission assembly, and the transmission assembly is in transmission connection with the gearbox.
Optionally, the transmission assembly comprises a main belt wheel, a belt and a driven belt wheel, the main belt wheel is in transmission connection with an output shaft of the driving motor, the belt is sleeved on the main belt wheel and the driven belt wheel, and the driven belt wheel is in transmission connection with the gearbox.
Optionally, the driving control device includes a frequency converter and a driving motor controller electrically connected to each other, the frequency converter is electrically connected to the driving motor, and the driving motor controller is electrically connected to the rack control device.
Optionally, the wheel rotation speed signal processing device comprises a rotation speed sensor, and the rotation speed sensor is electrically connected with the rack control device and is used for acquiring the rotation speed of a front wheel connected with the gearbox and transmitting the rotation speed to the rack control device.
Optionally, the wheel rotation speed signal processing device further includes a wheel rotation speed signal simulation device and an original wheel rotation speed sensor which are electrically connected to each other, the wheel rotation speed signal simulation device is electrically connected to the rack control device, can generate four-way vehicle speed signals according to the rotation speed of the wheel, and transmits the four-way vehicle speed signals to the vehicle controller through the original wheel rotation speed sensor.
The use method of the engine performance benchmarking test system for the automatic gear vehicle is suitable for the engine performance benchmarking test system for the automatic gear vehicle, and comprises the following steps:
s1, detaching the engine from the vehicle, extending the wiring harness of the engine, and mounting the engine on an engine test bench;
s2, mounting test equipment including a dynamometer, a combustion analyzer and an emission analyzer on the engine test bench;
s3, connecting a gearbox of the original vehicle with a gearbox driving device, and controlling the gearbox and the engine to synchronously rotate at the same speed through a rack control device;
s4, the rotation speed signal of the front wheel connected with the gearbox of the vehicle measured by the rotation speed sensor is transmitted to the rack control device, four paths of vehicle speed signals are generated by the wheel rotation speed signal simulation device and are transmitted to four original wheel rotation speed sensors, and then are transmitted to the vehicle controller.
The invention has the beneficial effects that:
the engine performance benchmarking test system for the automatic transmission vehicle detects the rotating speed and torque of an engine and the combustion and emission conditions of fuel through the engine test bench device; driving the gearbox to rotate by using a driving execution device in the gearbox driving device; the driving control device can control the driving execution device to regulate and control the rotating speed of the gearbox and the synchronous rotation of the engine; the rotating speed of the front wheel connected with the gearbox is collected through the wheel rotating speed signal processing device and is transmitted to the vehicle controller. The vehicle controller can acquire the rotating speed signal from the gearbox in real time, the vehicle controller of the vehicle is guaranteed not to have faults, and therefore the engine alignment test of the automatic-gear vehicle is guaranteed to be carried out smoothly.
The application method of the engine performance benchmarking test system for the automatic-gear vehicle can ensure that the engine benchmarking test of the automatic-gear vehicle is smoothly carried out.
Drawings
FIG. 1 is a schematic diagram of an engine performance benchmarking test system for an automatic transmission vehicle according to the present invention.
In the figure:
1-a vehicle controller;
2-engine test bench set; 21-a dynamometer; 22-a combustion analyzer; 23-emission analyzer;
3-driving the actuator; 31-a drive motor; 32-a primary pulley; 33-a belt; 34-a driven pulley;
4-a drive control device; 41-frequency converter; 42-drive motor controller;
5-wheel speed signal processing device; 51-a rotational speed sensor; 52-wheel speed signal simulation device; 53-original wheel speed sensor;
6-a gantry control device;
7-an engine;
8-a gearbox;
9-front wheel of the vehicle.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the present invention provides an engine performance benchmarking test system for an automatic transmission vehicle, comprising: the system comprises a vehicle controller 1, an engine test bench device 2, a gearbox driving device and a wheel rotating speed signal processing device 5; wherein the vehicle controller 1 is used for electrically connecting with an engine 7 and a gearbox 8; the engine test bench device 2 can be in transmission connection with the engine 7 to test the rotating speed and torque of the engine 7 and the combustion and emission of fuel; the gearbox driving device comprises a driving execution device 3 and a driving control device 4, the driving control device 4 is electrically connected with the driving execution device 3, the driving execution device 3 is used for being in transmission connection with the gearbox 8, and the driving control device 4 is configured to be capable of controlling the driving execution device 3 to drive the gearbox 8 to synchronously rotate with the engine 7; the wheel rotating speed signal processing device 5 is electrically connected with the vehicle controller 1 and is used for acquiring the rotating speed of a front wheel 9 connected with a gearbox 8 and transmitting the rotating speed to the vehicle controller 1.
The rotating speed and the torque of the engine 7 and the combustion and emission conditions of fuel are detected through the engine test bench device 2; driving the gearbox 8 to rotate by using a driving execution device 3 in the gearbox driving device; the driving control device 4 can control the driving execution device 3 to regulate and control the synchronous rotation of the gearbox 8 and the engine 7, and the wheel rotating speed signal processing device 5 is used for acquiring the rotating speed of a front wheel 9 connected with the gearbox 8 and transmitting the rotating speed to the vehicle controller 1. The vehicle controller 1 can acquire the rotating speed signal from the gearbox 8 in real time, the vehicle controller 1 of the vehicle is guaranteed not to have faults, and therefore the engine 7 of the vehicle with the automatic gear is guaranteed to conduct the calibration test smoothly.
Further, in order to facilitate effective overall control of the standard test system for the engine performance of the automatic transmission vehicle, the test system further comprises a rack control device 6, and the rack control device 6 is electrically connected with the vehicle controller 1, the engine test rack device 2, the drive control device 4 and the wheel rotating speed signal processing device 5.
Further, the engine test bench device 2 comprises a dynamometer 21 and an analysis device, wherein the dynamometer 21 can be in transmission connection with the engine 7 to test the rotating speed and the torque of the engine 7; the analysis device can be connected with the engine 7 to test the combustion and emission of fuel, the dynamometer 21 is electrically connected with the bench control device 6, and the operation and the starting and stopping of the dynamometer 21 are controlled through the bench control device 6. In the present embodiment, optionally, the analysis device includes a combustion analyzer 22 and an emission analyzer 23, the combustion analyzer 22 is connected with the engine 7 for analyzing the combustion condition of the fuel, and the emission analyzer 23 is connected with the engine 7 for analyzing the emission condition of the exhaust gas. Thereby testing the overall performance of the engine 7.
Further, the driving executing device 3 comprises a driving motor 31 and a transmission assembly, an output shaft of the driving motor 31 is connected with the transmission assembly, and the transmission assembly is in transmission connection with the gearbox 8. Specifically, the driving motor 31 is a variable frequency motor, the transmission assembly adopts a belt 33 transmission mode and comprises a main belt wheel 32, a belt 33 and a driven belt wheel 34, the main belt wheel 32 is in transmission connection with an output shaft of the driving motor 31, the belt 33 is sleeved on the main belt wheel 32 and the driven belt wheel 34, and the driven belt wheel 34 is in transmission connection with the gearbox 8. In this embodiment, the transmission form of the synchronous belt and the synchronous pulley is adopted, and the synchronous belt has the advantage of ensuring that an accurate transmission ratio can be ensured, so that the transmission case 8 can rotate synchronously with the engine 7 without causing errors due to the slipping of the belt 33.
Further, the drive control device 4 includes a frequency converter 41 and a drive motor controller 42 electrically connected to each other, the frequency converter 41 is electrically connected to the drive motor 31, and the drive motor controller 42 is electrically connected to the stage control device 6. The rotation and start and stop of the driving motor 31 are controlled by controlling the driving motor controller 42 through the stage control device 6, and the rotation speed of the driving motor 31 is controlled by using the frequency converter 41.
Further, the wheel rotation speed signal processing device 5 comprises a rotation speed sensor 51, and the rotation speed sensor 51 is electrically connected with the rack control device 6 and used for acquiring the rotation speed of the front wheel 9 connected with the gearbox 8 and transmitting the rotation speed to the rack control device 6. The wheel speed sensor 51 is arranged beside the wheel to measure the real-time wheel speed signal.
Further, the wheel rotation speed signal processing device 5 further includes a wheel rotation speed signal simulator 52 and an original wheel rotation speed sensor 53 electrically connected to each other, the wheel rotation speed signal simulator 52 is electrically connected to the gantry control device 6, and is capable of generating four-way vehicle speed signals according to the rotation speed of the wheel and transmitting the four-way vehicle speed signals to the vehicle controller 1 through the original wheel rotation speed sensor 53.
The embodiment also provides a use method of the engine performance benchmarking test system for the automatic transmission vehicle, which comprises the following steps:
s1, detaching the engine 7 from the vehicle, extending the wiring harness of the engine 7, and mounting the engine 7 on an engine test bench;
s2, mounting test equipment including a dynamometer 21, a cylinder pressure sensor, a combustion analyzer 22, an emission analyzer 23, various temperature and pressure sensors and the like on the engine test bench;
s3, connecting the gearbox 8 of the original vehicle with a gearbox driving device, and controlling the gearbox 8 and the engine 7 to synchronously rotate at the same speed through the rack control device 6;
s4, the rotation speed sensor 51 detects the rotation speed signal of the front wheel 9 connected with the gearbox 8 of the vehicle, transmits the rotation speed signal to the rack control device 6, generates four paths of speed signals through the wheel rotation speed signal simulation device 52, transmits the four paths of speed signals to the four original wheel rotation speed sensors 53 and further transmits the four paths of speed signals to the vehicle controller 1.
Through the steps, the engine 7 of the vehicle to be tested can operate to all the rotating speed and load working points, and test items such as performance, combustion, emission and the like can be performed at all the working points, so that the standard alignment test of the performance of the engine 7 rack of the automatic transmission vehicle is completed.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An engine performance benchmarking test system for an automatic transmission vehicle, comprising:
a vehicle controller (1) for electrically connecting with an engine (7) and a transmission (8);
an engine test rig apparatus (2) driveably connectable to the engine (7) to test the speed and torque of the engine (7) and the combustion and emissions of fuel;
the gearbox driving device comprises a driving execution device (3) and a driving control device (4), the driving control device (4) is electrically connected with the driving execution device (3), the driving execution device (3) is used for being in transmission connection with the gearbox (8), and the driving control device (4) is configured to be capable of controlling the gearbox (8) to synchronously rotate with the engine (7);
and the wheel rotating speed signal processing device (5) is electrically connected with the vehicle controller (1) and is used for acquiring the rotating speed of a front wheel (9) connected with the gearbox (8) and transmitting the rotating speed to the vehicle controller (1).
2. The engine performance benchmarking test system for automatic transmission vehicles according to claim 1, further comprising a bench control device (6), wherein the bench control device (6) is electrically connected with the vehicle controller (1), the engine test bench device (2), the driving control device (4) and the wheel speed signal processing device (5).
3. An engine performance benchmarking test system for an automatic transmission vehicle as claimed in claim 2, characterized in that said engine test bench device (2) comprises a dynamometer (21) and an analysis device, said dynamometer (21) being drivingly connectable with said engine (7) for testing the rotational speed and torque of said engine (7); the analysis device can be connected with the engine (7) to test the combustion and emission of fuel, and the dynamometer (21) is electrically connected with the bench control device (6).
4. An engine performance benchmarking test system for an automatic transmission vehicle according to claim 3, characterized in that the analysis device comprises a combustion analyzer (22) and an emission analyzer (23), the combustion analyzer (22) being connected with the engine (7) for analyzing the combustion condition of the fuel, the emission analyzer (23) being connected with the engine (7) for analyzing the emission condition of the exhaust gas.
5. The engine performance benchmarking test system for automatic transmission vehicles according to claim 2, characterized in that the drive execution device (3) comprises a driving motor (31) and a transmission assembly, wherein the output shaft of the driving motor (31) is connected with the transmission assembly, and the transmission assembly is connected with the transmission box (8) in a transmission manner.
6. The engine performance benchmarking test system for the automatic transmission vehicle of claim 5, characterized in that the transmission assembly comprises a primary pulley (32), a belt (33) and a secondary pulley (34), the primary pulley (32) is in transmission connection with the output shaft of the driving motor (31), the belt (33) is sleeved on the primary pulley (32) and the secondary pulley (34), and the secondary pulley (34) is in transmission connection with the transmission case (8).
7. The engine performance benchmarking test system for automatic transmission vehicles according to claim 5, characterized in that the driving control device (4) comprises a frequency converter (41) and a driving motor controller (42) which are electrically connected with each other, the frequency converter (41) is electrically connected with the driving motor (31), and the driving motor controller (42) is electrically connected with the bench control device (6).
8. The engine performance benchmarking test system for automatic transmission vehicles according to claim 2, characterized in that the wheel speed signal processing device (5) comprises a speed sensor (51), the speed sensor (51) is electrically connected with the bench control device (6) for collecting the speed of the front wheel (9) connected with the gearbox (8) and transmitting to the bench control device (6).
9. The engine performance benchmarking test system for automatic transmission vehicles according to claim 8, wherein the wheel speed signal processing device (5) further comprises a wheel speed signal simulator (52) and an original wheel speed sensor (53) electrically connected with each other, the wheel speed signal simulator (52) is electrically connected with the rack control device (6), and can generate four-way vehicle speed signals according to the wheel speed and transmit the four-way vehicle speed signals to the vehicle controller (1) through the original wheel speed sensor (53).
10. A method of using an engine performance benchmarking test system for an automatic transmission vehicle, adapted for use with the engine performance benchmarking test system for an automatic transmission vehicle of any one of claims 1-9, comprising the steps of:
s1, detaching the engine (7) from the vehicle, extending the wiring harness of the engine (7), and mounting the engine (7) on an engine test bench;
s2, mounting test equipment comprising a dynamometer (21), a combustion analyzer (22) and an emission analyzer (23) on the engine test bench;
s3, connecting a gearbox (8) of an original vehicle with a gearbox driving device, and controlling the gearbox (8) and the engine (7) to synchronously rotate at the same speed through a rack control device (6);
s4, a rotating speed signal of a front wheel (9) connected with the gearbox (8) of the vehicle measured by the rotating speed sensor (51) is transmitted to the rack control device (6), a four-way vehicle speed signal is generated by the wheel rotating speed signal simulation device (52), and is transmitted to four original wheel rotating speed sensors (53) and further transmitted to the vehicle controller (1).
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| CN113820135A (en) * | 2021-07-22 | 2021-12-21 | 中国第一汽车股份有限公司 | Engine test benchmarking experiment system and experiment method |
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