New energy commercial vehicle gear shifting control mechanism in high magnetic field environment

Abstract

The utility model relates to a gear shifting control mechanism of a new energy commercial vehicle in a high magnetic field environment. Interference and influence of an environmental magnetic field on signal transmission are effectively avoided. Comprising a high-magnetism-mode gear shifting change-over switch (1) installed on a cab operation table, an integrated controller (2), a gear selecting motor (3) arranged on a gearbox end cover (11), a first shifting fork rod (4) fixedly connected with the gear selecting motor (3), a first gear shifting fork (5) fixedly installed on the first shifting fork rod (4) and a first 24V position switch sensor (6) arranged at the tail end of the first shifting fork rod (4) on the gearbox end cover. The motor (7) is arranged on an end cover of a speed changing box for gear shifting, the second shifting fork rod (12) is fixedly connected with the gear shifting motor (7), the second gear shifting fork (13) is fixedly installed on the second shifting fork rod (12), and a structural limiting clamping groove (10) is designed in the first shifting fork rod (4).

Description

Technical Field

[0001] The utility model relates to a gear shift control mechanism, in particular to a gear shift control mechanism for a new energy commercial vehicle in a high magnetic field environment. Background Art

[0002] New energy commercial vehicles, with their convenience, speed, energy conservation, and environmental protection, have been widely used in specialized scenarios such as ports, mines, power plants, and metallurgical enterprises in recent years, driven by policy support, to transport goods and materials. These specific scenarios are characterized by a high density of ultra-high-power electrical equipment, a large and complex number and frequency of power and control electrical appliances and circuit networks, and high magnetic field strength. The overall operational control of pure electric commercial vehicles relies on sensor signal capture and feedback. Currently, new energy commercial vehicles commonly use ATM transmissions. The TCU controller controls the shift motor to the corresponding gear position, and the Hall effect sensor (5V) captures the gear position signal and feeds it back to the TCU to execute the shift start and stop operations.

[0003] Vehicles operating on conventional traffic roads are affected by signal transmission in a high magnetic field environment, and the control unit cannot accurately receive feedback signals, resulting in the shift mechanism being unable to normally perform start-stop or shift operations, and transmission loss of control problems will occur. This not only affects normal operation, but also poses a great safety hazard and may cause significant economic losses. Utility Model Content

[0004] The utility model is aimed at transport vehicles used in high-magnetic environments. Through the optimized design of the ATM gearbox shift mechanism, control method and structure, the traditional Hall sensor captures the gear position signal and feeds it back to the TCU to execute the control method of gear shifting and starting and stopping, adds a 24V touch switch sensor, and improves the structural design, effectively avoiding the interference and influence of the ambient magnetic field on signal transmission, and ensuring the normal operation of the vehicle transmission system in a high-magnetic environment.

[0005] The utility model is realized by the following technical solutions:

[0006] A shift control mechanism for a new energy commercial vehicle in a high magnetic field environment comprises a high-magnetic mode shift switch 1 mounted on a cab operating console, an integrated controller 2 comprising a vehicle controller (VCU) and an automatic transmission (AMT) controller (TCU), a shift motor 3 arranged on a transmission end cover 11, a shift fork lever 1 4 fixedly connected to the shift motor 3, a shift fork 1 5 fixedly mounted on the shift fork lever 1 4, a 24V position switch sensor 1 6 arranged at the end of the shift fork lever 1 4 on the transmission end cover, a shift motor 7 arranged on the transmission end cover, a shift fork lever 2 12 fixedly connected to the shift motor 7, a shift fork 2 13 fixedly mounted on the shift fork lever 2 12, a 24V position switch sensor 2 8, and a 5V Hall sensor 9; and a structural limit slot 10 is designed on the shift fork lever 1 4.

[0007] Beneficial effects of the utility model:

[0008] (1) By redesigning the shift mechanism and control mode of new energy commercial vehicles, the drive transmission system signals of new energy commercial vehicles are not interfered with in high magnetic environments, making the product environment more extensive and having stronger regional adaptability, and effectively preventing safety hazards caused by transmission control failure;

[0009] (2) It has a simple structure, flexible control, and low added cost. It retains the sensitivity advantage of the 5V Hall sensor under normal working conditions and cleverly combines the mechanical structure with the application of a 24V high-voltage switch sensor with strong anti-interference performance to ensure the normal and safe use of new energy commercial vehicles in high magnetic environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the utility model;

[0011] Figure 2 for Figure 1 A partial enlarged view of

[0012] Figure 3 This is the working control principle diagram of the utility model system. DETAILED DESCRIPTION

[0013] like Figure 1 、 2 As shown in Figure 3, the utility model is a shift mechanism for new energy commercial vehicles suitable for use in high magnetic environments, comprising a high magnetic mode shift switch 1 installed on the cab operating console, an integrated controller 2 (including a vehicle controller VCU and an AMT transmission controller TCU), a shift motor 3 arranged on a transmission end cover 11, a shift fork rod 1 4 fixedly connected to the shift motor 3, a shift fork 1 5 fixedly mounted on the shift fork rod 1 4, a 24V position switch sensor 1 6 arranged at the end of the shift fork rod 1 4 on the transmission end cover, a shift motor 7 arranged on the transmission end cover, a shift fork rod 2 12 fixedly connected to the shift motor 7, a shift fork 2 13 fixedly mounted on the shift fork rod 2 12, a 24V position switch sensor 2 8, a 5V Hall sensor 9, and a structural limit slot 10 designed on the shift fork rod 1 4.

[0014] System operation: In a high-magnetic environment, the driver turns on the high-magnetic mode shift switch 1, outputting a signal to the integrated controller 2. Integrated controller 2 then outputs a start command to the shift selector motor 3, which drives the fixedly connected shift fork lever 1 4, shifting the shift fork 1 5 to the first forward gear position, contacting the 24V position switch sensor 1 6. Integrated controller 2 receives the signal and controls the shift selector motor 3 to stop. Simultaneously, the shift motor 7 executes the start command, pushing the shift fork lever 2 12 and shifting the shift fork 2 13 to the first forward gear limit slot 10, contacting the 24V position switch sensor 2 8, completing the first forward gear operation. When driving in a non-high-magnetic environment, the driver turns off the high-magnetic mode shift switch 1, and the system returns to normal road operation. The shift position signal is collected and fed back by the 5V Hall effect sensor 9.

Claims

1. A shift control mechanism for a new energy commercial vehicle in a high magnetic field environment, characterized by: The invention comprises a high-magnetic mode shift switch (1) installed on a cab operating console, an integrated controller (2) including a vehicle controller VCU and an AMT transmission controller TCU, a shift motor (3) arranged on a transmission end cover (11), a shift fork rod (4) fixedly connected to the shift motor (3), a shift fork (5) fixedly installed on the shift fork rod (4), a 24V position switch sensor (6) arranged at the end of the shift fork rod (4) on the transmission end cover, a shift motor (7) arranged on the transmission end cover, a shift fork rod (12) fixedly connected to the shift motor (7), a shift fork (13) fixedly installed on the shift fork rod (12), a 24V position switch sensor (8), and a 5V Hall sensor (9), and a structural limit slot (10) is designed on the shift fork rod (4).

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