Driving system for new energy mixer truck

Abstract

The invention relates to the technical field of driving systems, and discloses a driving system for a new energy mixer truck, the driving system comprises a generator controller and a hydraulic motor, the upper end of the generator controller is connected with a generator, the left side of the generator is provided with an engine, the lower end of the generator controller is connected with a PDU, and the hydraulic motor is connected with the PDU. An air conditioner compressor and a motor controller are arranged on the left side and the right side of the PDU respectively, the lower end of the PDU is connected with a power battery, and a driving motor is arranged on the right side of the motor controller. According to the driving system for the new energy mixer truck, compared with a traditional fuel truck, a novel loading system provides a sustainable emergency solution; an independent electric driving system is utilized, so that fuel oil consumed by parking is saved; when a traditional engine breaks down, the electric driving system is switched in to replace the engine to operate, concrete is prevented from being solidified in the mixing drum, and unnecessary loss is avoided for customers.

Description

Technical Field

[0001] The present invention relates to the technical field of drive systems, and specifically to a drive system for a new energy mixer truck. Background Art

[0002] With the rapid development of the new energy vehicle industry at home and abroad, in terms of the electrification of concrete mixer truck related products, the current market is booming, and the market's requirements for electric drive systems are also increasing day by day.

[0003] Currently, the following are the main solutions for the electric drive system of concrete mixer trucks: 1. Pure electric mixer truck: The traveling drive system is an electric drive system, and the upper mounting drive system adopts the scheme of motor + reducer, and the emergency is completed by adding a mechanical interface to the end cover of the motor; 2. Hybrid mixer truck: The traveling system is driven by an engine, and the upper mounting system is basically the same as that of a pure electric system.

[0004] Regardless of which of the above solutions, when the upper mounting electric drive system fails, it is impossible to provide timely and reliable emergency rescue services. Therefore, how to develop a solution that can not only save energy and reduce emissions, has a low system usage cost, and can provide timely emergency rescue is one of the technical problems urgently needed to be solved in the current industry.

[0005] The current mainstream solutions on the market mainly have the following problems: 1. Pure electric drive has the problem of limited cruising range, which affects the operation efficiency; 2. Whether it is pure electric drive or hybrid power, there is no convenient and efficient emergency rescue system, and it is impossible to respond in time when the whole vehicle fails; 3. Compared with traditional fuel vehicles, the driving comfort is poor; Therefore, there is an urgent need for a drive system for a new energy mixer truck to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a drive system for a new energy mixer truck to solve the problems of limited cruising range in pure electric drive, which affects the operation efficiency; whether it is pure electric drive or hybrid power, there is no convenient and efficient emergency rescue system, and it is impossible to respond in time when the whole vehicle fails; and the driving comfort is poor compared with traditional fuel vehicles as mentioned in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions: A drive system for a new energy mixer truck. The drive system includes a generator controller and a hydraulic motor. The upper end of the generator controller is connected to a generator, and an engine is provided at the left side of the generator. The lower end of the generator controller is connected to a PDU. An air-conditioning compressor and a motor controller are respectively arranged on the left and right sides of the PDU, and a power battery is connected to the lower end of the PDU. A drive motor is provided on the right side of the motor controller. The left and lower sides of the hydraulic motor are respectively connected to a first hydraulic pump and a second hydraulic pump. A power take-off is provided at the left side of the first hydraulic pump, and the left end of the power take-off is connected to the upper end of the engine. A speed reducer is provided on the right side of the hydraulic motor, and a mixing drum is installed at the right side of the speed reducer.

[0008] Preferably, during driving, the engine is used as the power source to drive the first hydraulic pump, drive the hydraulic motor, drive the speed reducer, rotate the mixing drum, and according to the SOC state of the power battery, the engine operation can be used to charge the power battery.

[0009] Preferably, during parking, the engine is turned off, and the electric drive system is started through the operation panel. The power battery is used as the power source to supply power to the drive motor controller, control the drive motor, drive the second hydraulic pump, drive the hydraulic motor, drive the speed reducer, and rotate the mixing drum.

[0010] Preferably, during emergency, in case of a failure of the electric drive system or the power generation system, the engine is used as the power source to drive the first hydraulic pump, and then the hydraulic motor is used to drive the speed reducer to rotate the mixing drum.

[0011] Preferably, both the first hydraulic pump and the second hydraulic pump are power components of the hydraulic system. The first hydraulic pump and the second hydraulic pump are driven by the engine or the motor, suck oil from the hydraulic oil tank, and discharge the pressurized oil.

[0012] Preferably, both the first hydraulic pump and the second hydraulic pump adopt gear pumps.

[0013] Preferably, the speed reducer is driven by gears, and its internal structure is a multi-stage planetary reduction structure.

[0014] Compared with the prior art, the drive system for the new energy mixer truck of the present invention has the following beneficial effects: 1. Compared with traditional oil trucks, the new upper mounting system provides a sustainable emergency solution.

[0015] 2. By using an independent electric drive system, the fuel consumption during parking is saved.

[0016] 3. When a traditional engine failure occurs, the electric drive system cuts in to replace the engine operation, avoiding the concrete from solidifying in the mixing drum and avoiding unnecessary losses for customers. Description of the Drawings

[0017] Other features, objectives, and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 It is a schematic structural diagram of the drive system for a new energy mixer truck of the present invention; Detailed Embodiments

[0018] The present application will be further described in detail below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant invention and are not intended to limit the invention. Additionally, it should be noted that for the sake of description, only the parts related to the invention are shown in the drawings. In the drawings of the embodiments of the present invention: Different types of hatching in the figures are not marked according to the national standard, nor are the materials of the components required. It is to distinguish the cross-sectional views of the components in the figures.

[0019] Please refer to Figure 1 , a drive system for a new energy mixer truck. The drive system includes a generator controller and a hydraulic motor. An upper end of the generator controller is connected to a generator, and an engine is provided at a left side position of the generator. A lower end of the generator controller is connected to a PDU. An air-conditioning compressor and a motor controller are respectively provided at left and right sides of the PDU, and a power battery is connected to a lower end of the PDU. A drive motor is provided at a right side of the motor controller. A first hydraulic pump and a second hydraulic pump are respectively connected to a left side and a lower side of the hydraulic motor. A power take-off is provided at a left side position of the first hydraulic pump, and a left end of the power take-off is connected to an upper end of the engine. A speed reducer is provided at a right side of the hydraulic motor, and a mixing drum is installed at a right side position of the speed reducer.

[0020] Among them, during driving, the engine is used as the power source to drive the first hydraulic pump, drive the hydraulic motor, drive the speed reducer, rotate the mixing drum, and the power battery can be charged by the operation of the engine according to the SOC state of the power battery.

[0021] Among them, during parking, the engine is turned off, and the electric drive system is started through the operation panel. The power battery is used as the power source to supply power to the drive motor controller, control the drive motor, drive the second hydraulic pump, drive the hydraulic motor, drive the speed reducer, and rotate the mixing drum.

[0022] Among them, during an emergency, in case of a failure of the electric drive system or the power generation system, the engine is used as the power source to drive the first hydraulic pump, and then the hydraulic motor is used to drive the speed reducer to rotate the mixing drum.

[0023] Among them, the first hydraulic pump and the second hydraulic pump are both power components of the hydraulic system. The first hydraulic pump and the second hydraulic pump are driven by an engine or a motor, suck oil from the hydraulic oil tank, and discharge pressurized oil.

[0024] Among them, both the first hydraulic pump and the second hydraulic pump adopt gear pumps.

[0025] Among them, the speed reducer is driven by gear transmission, and its internal structure is a multi-stage planetary reduction structure.

[0026] The working principle and usage process of the present invention: On the basis of the upper mounting system of a traditional oil truck, the new upper mounting system adds an independent electric drive system and transforms the oil truck air conditioning system into an electric air conditioning system.

[0027] The working mode of the upper mounting system of a traditional oil truck: During driving and parking, the engine works to drive the hydraulic pump. The hydraulic pump drives the hydraulic motor through hydraulic energy, and the hydraulic motor drives the speed reducer, thereby rotating the mixing drum.

[0028] The working mode of the new upper mounting system: During driving, using the engine as the power source, driving the first hydraulic pump, driving the hydraulic motor, driving the speed reducer, and rotating the mixing drum. And according to the SOC state of the power battery, the engine operation can be used to charge the power battery.

[0029] During parking, the engine shuts down. By operating the control panel to start the electric drive system, the power battery is used as the power source to supply power to the drive motor controller, control the drive motor, drive the second hydraulic pump, drive the hydraulic motor, drive the speed reducer, and rotate the mixing drum.

[0030] Emergency mode: Whether it is a failure of the electric drive system or a failure of the power generation system, the engine can be used as the power source to drive the first hydraulic pump, and then drive the speed reducer through the hydraulic motor to rotate the mixing drum.

[0031] The drive system of this new energy mixing truck provides a sustainable emergency solution for the new upper mounting system compared with the traditional oil truck; by using an independent electric drive system, the fuel consumption during parking is saved; when a traditional engine failure occurs, the electric drive system cuts in to replace the engine operation, avoiding the concrete from solidifying in the mixing drum and avoiding unnecessary losses for customers.

[0032] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0033] The above description is only a preferred embodiment of the present application and an explanation of the technical principles applied. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) disclosed in the present application that have similar functions.

Claims

1. A drive system for a new energy mixer truck, which includes a generator controller and a hydraulic motor, is characterized in that: A generator is connected to the upper end of the generator controller, and an engine is provided at the left side of the generator. A PDU is connected to the lower end of the generator controller. An air-conditioning compressor and a motor controller are respectively arranged on the left and right sides of the PDU. A power battery is connected to the lower end of the PDU. A drive motor is provided on the right side of the motor controller. The left and lower sides of the hydraulic motor are respectively connected to a first hydraulic pump and a second hydraulic pump. A power take-off is provided at the left side of the first hydraulic pump, and the left end of the power take-off is connected to the upper end of the engine. A speed reducer is arranged on the right side of the hydraulic motor, and a mixing drum is installed at the right side position of the speed reducer.

2. The drive system for a new energy mixer truck according to claim 1, characterized in that: During driving, the engine is used as the power source to drive the first hydraulic pump, the hydraulic motor, the speed reducer, and rotate the mixing drum. And according to the SOC state of the power battery, the engine operation can be used to charge the power battery.

3. A drive system for a new energy mixer truck according to claim 1, characterized in that: During parking, the engine is turned off. The electric drive system is started through the operation panel. The power battery is used as the power source to supply power to the drive motor controller, control the drive motor, drive the second hydraulic pump, the hydraulic motor, the speed reducer, and rotate the mixing drum.

4. A drive system for a new energy mixer truck according to claim 1, characterized in that: During emergency, in case of a failure of the electric drive system or the power generation system, the engine is used as the power source to drive the first hydraulic pump, and then the hydraulic motor is used to drive the speed reducer to rotate the mixing drum.

5. A drive system for a new energy mixer truck according to claim 1, characterized in that: Both the first hydraulic pump and the second hydraulic pump are power components of the hydraulic system. The first hydraulic pump and the second hydraulic pump are driven by the engine or the motor, suck the oil fluid from the hydraulic oil tank, and discharge the pressurized oil.

6. A drive system for a new energy mixer truck according to claim 1, characterized in that: Both the first hydraulic pump and the second hydraulic pump adopt gear pumps.

7. The drive system for a new energy mixer truck according to claim 1, characterized in that: The speed reducer is driven by gears, and its internal structure is a multi-stage planetary reduction structure.

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