Multifunctional power total power rate testing device and method thereof

Abstract

The invention discloses a multifunctional power assembly power testing device and method, and the device comprises a power assembly testing device, a protective cover assembly, a motor controller, a cooling unit, a power system, a control system, and a double-current box testing device, and the double-current box testing device and the power assembly testing device are electrically connected with the motor controller through wires. The motor controller, the double-flow box testing device and the power assembly testing device are respectively connected with a cooling unit for cooling the motor controller, the double-flow box testing device and the power assembly testing device through guide pipes, and are respectively connected with a control system for controlling the motor controller, the double-flow box testing device and the power assembly testing device through wires; the multifunctional power assembly power test device and the method thereof have the advantages that the structure is simple, the operation is simple and convenient, the foundation is laid for the optimization design and upgrading iteration of the power assembly, the product quality and the power assembly transmission efficiency are improved, and the power assembly power test efficiency is improved. And good economic benefits and social benefits are obtained.

Description

Technical Field

[0001] The invention relates to the technical field of special vehicles, in particular to a multifunctional power total success rate testing device and a method thereof. Background Art

[0002] The powertrain success rate needs to be tested during the production of special vehicles. The power test of the powertrain allows designers to have an in-depth understanding of its performance and provide a basis for improving the performance of the powertrain. The basic calculation expression for power measurement is: P=T×n / 9550 (where P is the power transmitted by the transmission chain, in KW; T ​​is the torque transmitted by the transmission chain, in Nm; n is the real-time speed of the transmission chain, in R / min). Usually, torque sensors and speed sensors are used to measure the real-time torque and speed of the measured shaft in the transmission chain, and then the real-time power transmitted by the measured shaft is obtained by calculation. After preliminary technical research, the commonly used power test methods on the market cannot simultaneously measure the two measured shafts operating under different working conditions. They are all single-ended output power measurements, and no corresponding measurement methods and equipment for simultaneously measuring the dual-end output power conditions have been found. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a multifunctional powertrain success rate testing device and method thereof, which has a simple structure and is easy to operate, laying a foundation for the optimized design and upgraded iteration of the powertrain, improving product quality and powertrain transmission efficiency, achieving good economic and social benefits, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multifunctional powertrain success rate test device, comprising a powertrain test device, a protective cover assembly, a motor controller, a cooling unit, a power supply system, a control system and a double flow box test device, wherein the double flow box test device and the powertrain test device are electrically connected to the motor controller through a wire, and the motor controller, the double flow box test device and the powertrain test device are respectively connected to a cooling unit for cooling them through a conduit, and the motor controller, the double flow box test device and the powertrain test device are respectively connected to a control system for controlling them through a wire, and the double flow box test device and the powertrain test device are provided with a protective cover assembly, and the motor controller, the double flow box test device, the powertrain test device and the control system are respectively connected to a power supply system for supplying power to them through a wire.

[0005] Furthermore, the powertrain testing device includes a cast iron platform, a workpiece support is provided at the center of the upper surface of the cast iron platform, a detection workpiece is fixed on the workpiece support, two output ends of the detection workpiece are respectively connected to a speed torque sensor through a coupling, the input end of the detection workpiece is connected to the output end of the motor, the end of the speed torque sensor away from the connection with the detection workpiece is connected to the input end of the speed increaser, the output end of the speed increaser is connected to an eddy current brake, and the speed torque sensor, the speed increaser and the eddy current brake are respectively connected to the upper surface of the cast iron platform through the supports.

[0006] Furthermore, the double flow box testing device includes a cast iron platform 2, a workpiece support 2 is provided at the center of the upper surface of the cast iron platform 2, a detection workpiece is fixed on the workpiece support 2, the two output ends of the detection workpiece are respectively connected to a speed torque sensor 2 through a coupling, the input end of the detection workpiece is connected to the output end of the motor, the end of the speed torque sensor 2 away from the connection with the detection workpiece is connected to an eddy current brake 2, and the speed torque sensor 2 and the eddy current brake are respectively connected to the upper surface of the cast iron platform 2 through the support.

[0007] Furthermore, the control system includes a control cabinet, which is provided with a display screen, a temperature display, a torque and speed measuring instrument and a loading controller. The control system of the entire powertrain test system is controlled through the display screen to control the power supply, motor speed and torque of the eddy current brake. The temperature display is mainly used to display the temperature of the product under test. The torque and speed measuring instrument displays the speed, torque, power and other information of the speed and torque sensor. The braking torque of the eddy current brake is controlled by the loading controller.

[0008] A method for a multifunctional power total success rate testing device comprises the following steps; S1) First, fix the workpiece on the workpiece support 2 of the double flow box test device, then connect the output shaft of the motor with the input shaft of the double flow box of the workpiece to be tested, and the two output shafts of the double flow box of the workpiece to be tested are respectively connected with the second eddy current brake through the second speed torque sensor, and the double flow box of the workpiece to be tested is driven by the motor to run, and the second eddy current brake is driven to rotate when the double flow box of the workpiece to be tested is compared and judged with the setting torque through the second speed torque sensor, so as to test the double flow box of the workpiece to be tested; S2) The inspection workpiece is then fixed to the upper surface of the workpiece support of the powertrain test device. The output shaft of the motor provided on the powertrain test device is connected to the input shaft of the inspection workpiece. The transfer case output shaft of the inspection workpiece is connected to the input end of the speed torque sensor. The motor drives the input shaft of the inspection workpiece to rotate. The inspection workpiece drives the speed torque sensor, the speed increaser and the eddy current brake to rotate. The torque of the inspection workpiece is compared and judged by the speed torque sensor with that of the setting, so as to test the inspection workpiece.

[0009] Furthermore, when the dual-flow box test device is running, the data to be tested is first input into the control system, and the test program generates a test code and sends it to the starting control module and the motor controller to control the power supply system and the cooling unit to start operating according to the settings, and at the same time control the power motor to operate according to the set torque and speed. After the operation is stable, the torque control module controls the load unit to gradually generate the initial load torque; when the data monitoring module detects that the real-time torque sent by the measuring unit and the motor control module does not match the set torque, the PID control module issues a torque control command to gradually control the load unit to reach the set torque.

[0010] Compared with the prior art, the beneficial effects of the present invention are: the multifunctional power total success rate test device and method thereof have the following advantages: 1. The present invention drives the double flow box of the detection workpiece to run through the motor. When the double flow box of the detection workpiece runs, it drives the eddy current brake 2 to rotate. The torque of the double flow box of the detection workpiece is compared and judged by the speed torque sensor 2, so as to test the double flow box of the detection workpiece. 2. In the present invention, the motor drives the input shaft of the detection workpiece to rotate, and the detection workpiece drives a speed torque sensor, a speed increaser and an eddy current brake to rotate. The torque of the detection workpiece is compared and judged by a pair of speed torque sensors with that during setting, so as to test the detection workpiece.

[0011] 3. The present invention solves the problem that it is impossible to test the dual flow box and the dual flow box + transfer case separately, and designs a new mode of powertrain testing. The multifunctional powertrain success rate testing device and method thereof have a simple structure and are easy to operate. They lay the foundation for the optimized design and upgraded iteration of the powertrain, improve product quality and powertrain transmission efficiency, and achieve good economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the structure of the powertrain test device of the present invention; Figure 3 It is a structural schematic diagram of the double flow box testing device of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the control system of the present invention; Figure 5 It is a schematic diagram of the framework structure of the control system of the present invention.

[0013] In the figure: 1 powertrain test device, 101 cast iron platform 1, 102 workpiece support 1, 103 speed torque sensor 1, 104 speed increaser, 105 eddy current brake 1, 2 protective cover assembly, 3 controller fixture, 4 cooling unit, 5 power supply system, 6 control system, 61 control cabinet, 62 display screen, 63 temperature display instrument, 64 torque speed measuring instrument, 65 loading controller, 7 double flow box test device, 701 cast iron platform 2, 702 workpiece support 2, 703 speed torque sensor 2, 704 eddy current brake 2, 8 detection workpiece, 9 motor. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1-5 The present invention provides a technical solution: a multifunctional powertrain success rate test device and method thereof, comprising a powertrain test device 1, a protective cover assembly 2, a motor controller 3, a cooling unit 4, a power supply system 5, a control system 6 and a double flow box test device 7, wherein the double flow box test device 7 and the powertrain test device 1 are electrically connected to the motor controller 3 through a wire, and the motor controller 3, the double flow box test device 7 and the powertrain test device 1 are respectively connected to a cooling unit 4 for cooling them through a conduit, and the motor controller 3, the double flow box test device 7 and the powertrain test device 1 are respectively connected to a control system 6 for controlling them through a wire, and the double flow box test device 7 and the powertrain test device 1 are provided with a protective cover assembly 2, and the motor controller 3, the double flow box test device 7, the powertrain test device 1 and the control system 6 are respectively connected to a power supply system 5 for supplying power to them through a wire.

[0016] The powertrain testing device 1 includes a cast iron platform 101, a workpiece support 102 is provided at the center of the upper surface of the cast iron platform 101, a detection workpiece 8 is fixed on the workpiece support 102, two output ends of the detection workpiece 8 are respectively connected to a speed torque sensor 103 through a coupling, the input end of the detection workpiece 8 is connected to the output end of the motor 9, the end of the speed torque sensor 103 away from the connection with the detection workpiece 8 is connected to the input end of the speed increaser 104, the output end of the speed increaser 104 is connected to an eddy current brake 105, and the speed torque sensor 103, the speed increaser 104 and the eddy current brake 105 are respectively connected to the upper surface of the cast iron platform 101 through supports.

[0017] The double flow box testing device 7 includes a cast iron platform 701, a workpiece support 702 is provided at the center of the upper surface of the cast iron platform 701, a detection workpiece 8 is fixed on the workpiece support 702, two output ends of the detection workpiece 8 are respectively connected to a speed torque sensor 703 through a coupling, the input end of the detection workpiece 8 is connected to the output end of the motor 9, the speed torque sensor 703 is connected to an eddy current brake 704 at one end away from the connection with the detection workpiece 8, and the speed torque sensor 703 and the eddy current brake 704 are respectively connected to the upper surface of the cast iron platform 701 through the support.

[0018] The control system 6 includes a control cabinet 61, on which a display screen 62, a temperature display 63, a torque and speed measuring instrument 64 and a loading controller 65 are provided. The display screen 62 is used to control the control system of the entire powertrain test system, control the power on and off, the motor speed and the torque of the eddy current brake, etc. The temperature display 63 is mainly used to display the temperature of the product under test, and the torque and speed measuring instrument 64 displays the speed, torque, power and other information of the speed and torque sensor. The braking torque of the eddy current brake is controlled by the loading controller 65.

[0019] A method for a multifunctional power total success rate testing device comprises the following steps; S1 first fixes the workpiece on the workpiece support 2 702 of the double flow box test device 7, and then connects the output shaft of the motor 9 with the input shaft of the double flow box of the detection workpiece 8. The two output shafts of the double flow box of the detection workpiece 8 are respectively connected with the eddy current brake 2 704 through the speed torque sensor 2 703. The double flow box of the detection workpiece 8 is driven to run by the motor 9. When the double flow box of the detection workpiece 8 is running, the eddy current brake 2 704 is driven to rotate. The torque of the double flow box of the detection workpiece 8 is compared and judged with the setting by the speed torque sensor 2 703, so as to test the double flow box of the detection workpiece 8; S2 then fixes the inspection workpiece 8 to the upper surface of the workpiece support 102 of the powertrain test device 1, and similarly connects the output shaft of the motor 9 provided on the powertrain test device 1 with the input shaft of the inspection workpiece 8, and the transfer case output shaft of the inspection workpiece 8 is connected to the input end of the speed torque sensor 103. The motor 9 drives the input shaft of the inspection workpiece 8 to rotate, and the inspection workpiece 8 drives the speed torque sensor 103, the speed increaser 104 and the eddy current brake 105 to rotate. The speed torque sensor 103 compares and judges the torque of the inspection workpiece 8 with that during the setting, so as to test the inspection workpiece 8.

[0020] When the double flow box test device 7 is running, firstly, the data to be tested is input into the control system 6, and the test program generates a test code and sends it to the start control module and the motor controller 3 to control the power supply system 5 and the cooling unit 4 to start running according to the setting, and at the same time control the power motor 9 to run according to the set torque and speed. After 9 runs stably, the torque control module controls the load unit to gradually generate the initial load torque; when the data monitoring module detects that the real-time torque sent by the measuring unit and the motor control module does not match the set torque, the PID control module issues a torque control instruction to gradually control the load unit to reach the set torque. The multifunctional powertrain success rate test device and method thereof have a simple structure and are easy to operate, which lays a foundation for the optimization design and upgrade iteration of the powertrain, improves the product quality and the powertrain transmission efficiency, and achieves good economic and social benefits. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A multifunctional powertrain success rate test device, comprising a powertrain test device (1), a protective cover assembly (2), a motor controller (3), a cooling unit (4), a power supply system (5), a control system (6) and a dual flow box test device (7), characterized in that: The dual flow box test device (7) and the power assembly test device (1) are electrically connected to the motor controller (3) via a wire; the motor controller (3), the dual flow box test device (7) and the power assembly test device (1) are respectively connected to a cooling unit (4) for cooling the motor controller (3), the dual flow box test device (7) and the power assembly test device (1) via a conduit; the motor controller (3), the dual flow box test device (7) and the power assembly test device (1) are respectively connected to a control system (6) for controlling the motor controller (3), the dual flow box test device (7) and the power assembly test device (1) via a wire; a protective cover assembly (2) is provided on the dual flow box test device (7) and the power assembly test device (1); and the motor controller (3), the dual flow box test device (7), the power assembly test device (1) and the control system (6) are respectively connected to a power supply system (5) for supplying power to the motor controller (3), the dual flow box test device (7), the power assembly test device (1) and the control system (6) via a wire.

2. A multifunctional power total success rate test device according to claim 1, characterized in that: The powertrain test device (1) comprises a cast iron platform (101), a workpiece support (102) is provided at the center of the upper surface of the cast iron platform (101), a detection workpiece (8) is fixed on the workpiece support (102), two output ends of the detection workpiece (8) are respectively connected to a speed torque sensor (103) through a coupling, the input end of the detection workpiece (8) is connected to the output end of the motor (9), the end of the speed torque sensor (103) away from the connection with the detection workpiece (8) is connected to the input end of a speed increaser (104), the output end of the speed increaser (104) is connected to an eddy current brake (105), and the speed torque sensor (103), the speed increaser (104) and the eddy current brake (105) are respectively connected to the upper surface of the cast iron platform (101) through the support.

3. A multifunctional power total success rate testing device according to claim 1, characterized in that: The double flow box testing device (7) comprises a second cast iron platform (701), a second workpiece support (702) is provided at the center of the upper surface of the second cast iron platform (701), a detection workpiece (8) is fixed on the second workpiece support (702), two output ends of the detection workpiece (8) are respectively connected to a second speed torque sensor (703) through a coupling, the input end of the detection workpiece (8) is connected to the output end of the motor (9), the second speed torque sensor (703) is connected to a second eddy current brake (704) at one end away from the connection with the detection workpiece (8), and the second speed torque sensor (703) and the second eddy current brake (704) are respectively connected to the upper surface of the second cast iron platform (701) through the support.

4. A multifunctional power total success rate testing device according to claim 1, characterized in that: The control system (6) comprises a control cabinet (61), on which a display screen (62), a temperature display instrument (63), a torque and speed measuring instrument (64) and a loading controller (65) are arranged. The control system of the entire powertrain test system is controlled through the display screen (62), and the power on and off of the power supply, the motor speed and the torque of the eddy current brake are controlled. The temperature display instrument (63) is mainly used to display the temperature of the product being tested. The torque and speed measuring instrument (64) displays the speed, torque, power and other information of the speed and torque sensor. The braking torque of the eddy current brake is controlled through the loading controller (65).

5. The method of the multifunctional power total success rate testing device according to claim 1, characterized in that: The steps include: S1) firstly fix the workpiece on the workpiece support 2 (702) of the double flow box test device (7), then connect the output shaft of the motor (9) to the input shaft of the double flow box of the detection workpiece (8), the two output shafts of the double flow box of the detection workpiece (8) are respectively connected to the eddy current brake 2 (704) through the speed torque sensor 2 (703), the double flow box of the detection workpiece (8) is driven to run by the motor (9), when the double flow box of the detection workpiece (8) is running, the eddy current brake 2 (704) is driven to rotate, and the torque of the double flow box of the detection workpiece (8) is compared and judged with the setting by the speed torque sensor 2 (703), so as to test the double flow box of the detection workpiece (8); S2) The detection workpiece (8) is then fixed to the upper surface of a workpiece support (102) of the powertrain test device (1). The output shaft of the motor (9) provided on the powertrain test device (1) is connected to the input shaft of the detection workpiece (8). The transfer case output shaft of the detection workpiece (8) is connected to the input end of a speed torque sensor (103). The motor (9) drives the input shaft of the detection workpiece (8) to rotate. The detection workpiece (8) drives the speed torque sensor (103), the speed increaser (104) and the eddy current brake (105) to rotate. The speed torque sensor (103) compares and determines the torque of the detection workpiece (8) with that of the setting, thereby testing the detection workpiece (8).

6. The method of the multifunctional power total success rate testing device according to claim 5, characterized in that: When the double flow box test device (7) is in operation, the data to be tested is first input into the control system (6), and the test program generates a test code which is sent to the start control module and the motor controller (3) to control the power supply system (5) and the cooling unit (4) to start operating according to the setting, and at the same time control the power motor (9) to operate according to the set torque and speed. After (9) operates stably, the torque control module controls the load unit to gradually generate the initial load torque; when the data monitoring module detects that the real-time torque sent by the measuring unit and the motor control module does not match the set torque, the PID control module issues a torque control instruction to gradually control the load unit to reach the set torque.

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