Large-tonnage mining truck power assembly

Abstract

The utility model provides a large-tonnage mining truck power assembly. The large-tonnage mining truck power assembly comprises an engine, a generator, an ECU engine controller, a GCU generator controller, an RCU range extending system controller, a VCU vehicle control unit, a PDU power distribution unit, an MCU driving motor controller, a BMS battery management system, four driving motors, a reduction gearbox and a power battery. Direct driving force is adopted without interruption, operation of a driver is greatly simplified, frequent gear shifting is not needed, the vehicle runs more smoothly, and pause is avoided; the four driving motors are adopted to jointly form the driving assembly, and the output power of the driving assembly is increased to meet the whole vehicle requirement of a large-tonnage mine truck. The multiple driving motors can also work in a matched mode to meet different load requirements of the whole vehicle, and the energy-saving effect is achieved; and the rate type power battery is adopted, so that large-current charging and discharging can be realized, and the uphill dynamic property and the downhill energy recovery efficiency of the vehicle can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining trucks, in particular to a power assembly of a large-tonnage mining truck. Background Art

[0002] The powertrain solutions for large-tonnage (total weight > 150 tons) mining trucks are usually: 1. Diesel engine with manual transmission and clutch; 2. Diesel engine with automatic transmission; 3. Diesel engine with drive motor and transmission, the engine and motor work together to drive the whole vehicle; 4. Diesel engine with range extender for power generation, drive motor with transmission responsible for driving the whole vehicle. The above technical solutions have the following main disadvantages:

[0003] (1) Domestic high-power diesel engine technology is immature, the clutch is prone to wear, and the manual transmission has poor controllability.

[0004] (2) Imported high-power diesel engines and imported automatic transmissions are expensive and have poor reliability when overloaded.

[0005] (3) The technical threshold of oil mixing is high. The structure is complex and requires a long time for development and verification.

[0006] Therefore, in view of the above technical problems, it is urgent to provide a large-tonnage mining truck powertrain. Utility Model Content

[0007] The technical problem to be solved by the utility model is: in order to overcome the deficiencies of the power system of a large-tonnage mining truck in the prior art, the utility model provides a power assembly of a large-tonnage mining truck.

[0008] The technical solution to be adopted by the utility model to solve its technical problems is: a large-tonnage mining truck powertrain, including an engine, an ECU engine controller, a generator, a GCU generator controller, an RCU range-extending system controller, a drive motor, an MCU drive motor controller, a reduction gearbox, a power battery, a BMS battery management system, a PDU power distribution unit and a VCU vehicle controller, wherein:

[0009] The VCU vehicle controller is connected and communicated with the MCU drive motor controller, the RCU range-extending system controller, the PDU power distribution unit, and the BMS battery management system through the vehicle CAN signal line; the engine, the ECU engine controller, the generator, the GCU generator controller, and the RCU range-extending system controller together constitute the range-extending system, and the RCU range-extending system controller is connected and communicated with the ECU engine controller and the GCU generator controller through the range-extending CAN signal line inside the range-extending system, the engine and the ECU engine controller are connected and communicated through the range-extending CAN signal line inside the range-extending system, the generator and the GCU generator controller are connected and communicated through the range-extending CAN signal line inside the range-extending system, and the engine and the generator are connected by transmission; the PDU power distribution unit and the BMS battery management system, as well as the BMS battery management system and the power battery are connected and communicated through the battery CAN signal line;

[0010] The PDU power distribution unit is respectively connected to the GCU generator controller, the MCU drive motor controller, and the BMS battery management system through high-voltage lines. The GCU generator controller is connected to the generator through a high-voltage line. The GCU generator controller controls the generator to generate electricity, and the generated electric energy is stored in the power battery through the GCU, PDU, and BMS in sequence; when electricity is used, the electric energy in the power battery provides the working voltage to the GCU after passing through the BMS and PDU; the MCU drive motor controller and the drive motor are connected through a high-voltage line, and the BMS battery management system and the power battery are connected through a high-voltage line to realize power distribution; the drive motor is connected to the reduction box for transmission.

[0011] Furthermore, there are four drive motors, namely drive motor 1, drive motor 2, drive motor 3, and drive motor 4, and there are also four drive motor controllers MCU corresponding to the drive motors, namely drive motor controller MCU1, drive motor controller MCU2, drive motor controller MCU3, and drive motor controller MCU4. The drive motor 1, drive motor 2, drive motor 3, and drive motor 4 are all connected to the drive motor controllers MCU1, drive motor controller MCU2, drive motor controller MCU3, and drive motor controller MCU4 in a one-to-one correspondence through CAN signal lines and high-voltage lines. The CAN signal line is used for communication and transmitting electrical signals, and the high-voltage line is used to provide working power. The drive motor 1, drive motor 2, drive motor 3, and drive motor 4 are all connected to the reduction gearbox for transmission.

[0012] Preferably, the power battery is a rate-type power battery.

[0013] Furthermore, the engine is a high-power diesel engine with a power of 560KW or above. Either domestic or imported engines can be selected.

[0014] Furthermore, the RCU range extender system controller has five working modes, namely: pure electric mode, range extender mode, hybrid drive mode, energy recovery mode and intelligent power matching mode.

[0015] The beneficial effects of the utility model are:

[0016] (1) The extended-range hybrid powertrain is used to replace the existing traditional fuel-powered powertrain on the market, thus avoiding the technical barriers of traditional fuel-powered diesel engines and transmissions;

[0017] (2) Direct drive without interruption greatly simplifies the driver's operation. There is no need to frequently shift gears, making the vehicle run smoother and avoiding setbacks.

[0018] (3) The drive assembly is composed of four drive motors, which solves the problem that the drive assembly cannot work due to a motor failure when the traditional single-motor or dual-motor drive assembly is composed of one motor; the output power of the drive assembly is increased to match the vehicle requirements of large-tonnage mining trucks; multiple drive motors can also work together to meet the different load requirements of the vehicle, achieving energy-saving effects;

[0019] (4) The 4-axis input reduction box is used to adapt to the complex working conditions of the mine, and the reliability fully meets customer needs;

[0020] (5) The range-extended engine does not directly drive the vehicle, so the engine can be controlled to always operate in the high-efficiency zone;

[0021] (6) The use of rate-type power batteries can achieve high-current charging and discharging, which can greatly improve the vehicle's uphill power and energy recovery efficiency when going downhill. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a schematic diagram of the principle of the power assembly of the large-tonnage mining truck of the utility model. DETAILED DESCRIPTION

[0024] Now the utility model is described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the components related to the utility model.

[0025] like Figure 1As shown, the dotted line represents the high-voltage line and the solid line represents the CAN signal line. The utility model is a large-tonnage mining truck powertrain, including an engine, an ECU engine controller, a generator, a GCU generator controller, an RCU range extender system controller, a drive motor, an MCU drive motor controller, a reduction box, a power battery, a BMS battery management system, a PDU power distribution unit and a VCU vehicle controller, wherein:

[0026] The VCU vehicle controller is connected and communicated with the MCU drive motor controller, the RCU range-extending system controller, the PDU power distribution unit, and the BMS battery management system through the vehicle CAN signal line; the engine, the ECU engine controller, the generator, the GCU generator controller, and the RCU range-extending system controller together constitute the range-extending system, and the RCU range-extending system controller is connected and communicated with the ECU engine controller and the GCU generator controller through the range-extending CAN signal line inside the range-extending system, the engine and the ECU engine controller are connected and communicated through the range-extending CAN signal line inside the range-extending system, the generator and the GCU generator controller are connected and communicated through the range-extending CAN signal line inside the range-extending system, and the engine and the generator are connected by transmission; the PDU power distribution unit The unit and the BMS battery management system, as well as the BMS battery management system and the power battery are connected and communicated through the battery CAN signal line; the PDU power distribution unit is connected to the GCU generator controller, the MCU drive motor controller, and the BMS battery management system through high-voltage lines respectively, the GCU generator controller is connected to the generator through high-voltage lines, the GCU generator controller controls the generator to generate electricity, and the generated electric energy is stored in the power battery through the GCU, PDU, and BMS in turn; when electricity is used, the electric energy in the power battery provides the working voltage to the GCU after passing through the BMS and PDU; the MCU drive motor controller and the drive motor are connected through high-voltage lines, and the BMS battery management system and the power battery are connected through high-voltage lines to realize power distribution; the drive motor is connected to the reduction box for transmission.

[0027] Among them, there are four drive motors, namely drive motor 1, drive motor 2, drive motor 3, and drive motor 4, and there are also four drive motor controllers MCU corresponding to the drive motors, namely drive motor controller MCU1, drive motor controller MCU2, drive motor controller MCU3, and drive motor controller MCU4. The drive motor 1, drive motor 2, drive motor 3, and drive motor 4 are connected to the drive motor controllers MCU1, drive motor controller MCU2, drive motor controller MCU3, and drive motor controller MCU4 one by one through CAN signal lines and high-voltage lines. The CAN signal line is used for communication and transmitting electrical signals, and the high-voltage line is used to provide working power. The drive motor 1, drive motor 2, drive motor 3, and drive motor 4 are all connected to the reduction gearbox for transmission.

[0028] Preferably, the power battery is a rate-type power battery. The engine is a high-power diesel engine with a power of 560KW or above. Either domestic or imported engines can be selected.

[0029] According to the above powertrain solution, the control strategy of the RCU range extender system controller has five working modes, namely: pure electric mode, range extender mode, hybrid drive mode, energy recovery mode and intelligent power matching mode, among which:

[0030] (1) Pure electric mode: When the power battery has sufficient energy, the pure electric mode is turned on. At this time, the range extender is turned off and the power battery is the only power source.

[0031] (2) Range extender mode: When the power battery energy drops below the lower limit, the range extender mode is activated to put the engine in optimal operating condition. Part of the electricity is used to drive the vehicle, and the excess electricity is used to charge the power battery. This is the driving charging mode.

[0032] (3) Hybrid drive mode: When the power demand increases and the power battery cannot meet the demand alone, the range extender is turned on. The range extender and the power battery together provide the energy required for the vehicle to travel.

[0033] (4) Energy recovery mode: When the vehicle decelerates or brakes, it enters energy recovery mode, which converts the vehicle's kinetic energy into electrical energy.

[0034] (5) Intelligent power matching mode: The powertrain of this solution includes four drive motors, which can intelligently match two, three or four drive motors to work separately according to the vehicle drive requirements and accessory requirements.

[0035] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the scope of the utility model through the above description. The technical scope of this utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A large-tonnage mining truck powertrain, characterized in that: It includes engine, ECU engine controller, generator, GCU generator controller, RCU range extender system controller, drive motor, MCU drive motor controller, reduction box, power battery, BMS battery management system, PDU power distribution unit and VCU vehicle controller, among which, The VCU vehicle controller is connected and communicated with the MCU drive motor controller, the RCU range-extending system controller, the PDU power distribution unit, and the BMS battery management system through the vehicle CAN signal line; the engine, the ECU engine controller, the generator, the GCU generator controller, and the RCU range-extending system controller together constitute the range-extending system, and the RCU range-extending system controller is connected and communicated with the ECU engine controller and the GCU generator controller through the range-extending CAN signal line inside the range-extending system, the engine and the ECU engine controller are connected and communicated through the range-extending CAN signal line inside the range-extending system, the generator and the GCU generator controller are connected and communicated through the range-extending CAN signal line inside the range-extending system, and the engine and the generator are connected by transmission; the PDU power distribution unit and the BMS battery management system, as well as the BMS battery management system and the power battery are connected and communicated through the battery CAN signal line; The PDU power distribution unit is respectively connected to the GCU generator controller, the MCU drive motor controller, and the BMS battery management system through high-voltage lines. The GCU generator controller is connected to the generator through a high-voltage line; the MCU drive motor controller and the drive motor are connected through a high-voltage line, and the BMS battery management system and the power battery are connected through a high-voltage line to achieve power distribution; the drive motor is connected to the reduction box through transmission.

2. The large-tonnage mining truck powertrain according to claim 1, characterized in that: There are four drive motors, namely drive motor 1, drive motor 2, drive motor 3, and drive motor 4. There are also four drive motor controllers MCU corresponding to the drive motors, namely drive motor controller MCU1, drive motor controller MCU2, drive motor controller MCU3, and drive motor controller MCU4. The drive motor 1, drive motor 2, drive motor 3, and drive motor 4 are connected to the drive motor controllers MCU1, drive motor controller MCU2, drive motor controller MCU3, and drive motor controller MCU4 in a one-to-one correspondence through CAN signal lines and high-voltage lines. The CAN signal line is used for communication and transmitting electrical signals, and the high-voltage line is used to provide working power. The drive motor 1, drive motor 2, drive motor 3, and drive motor 4 are all connected to the reduction gearbox for transmission.

3. The large-tonnage mining truck powertrain according to claim 1, characterized in that: The power battery is a rate-type power battery.

4. The large-tonnage mining truck powertrain according to claim 1, characterized in that: The engine is a high-power diesel engine with a power of 560KW and above.

5. The large-tonnage mining truck powertrain according to claim 1, characterized in that: The RCU range extender system controller has five working modes, namely: pure electric mode, range extender mode, hybrid drive mode, energy recovery mode and intelligent power matching mode.

Images