CN211468173U - Four-wheel low-speed electric chassis and vehicle with same - Google Patents

Four-wheel low-speed electric chassis and vehicle with same Download PDF

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Publication number
CN211468173U
CN211468173U CN201921610385.8U CN201921610385U CN211468173U CN 211468173 U CN211468173 U CN 211468173U CN 201921610385 U CN201921610385 U CN 201921610385U CN 211468173 U CN211468173 U CN 211468173U
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power
battery
module
speed electric
vehicle
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李亮
赵磊
张斌
何弢
肖庆麟
魏星
万军
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Zoomlion Heavy Industry Science and Technology Co Ltd
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Zoomlion Heavy Industry Science and Technology Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

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Abstract

The utility model discloses a four-wheel low-speed electric chassis and have its vehicle. The utility model discloses a four-wheel low-speed electric chassis and vehicle, give power battery power supply normal electricity through the battery, even if also can carry out real-time supervision and control to power battery under the stall state, ensure power battery's safety, still supply power for braking system through always opening, as long as total switching closes, braking system can use, when the high-voltage power down appears in order to guarantee to drive a vehicle, braking system still can normally work, the security of driving has been improved, and, the high-tension electricity of power battery output is exported for traveling system through high-voltage distribution box, a steering system, air conditioning system is in order to supply its high-pressure work, still carry out real-time low pressure charging for the battery through DC-DC power module simultaneously, thereby ensure that the battery can maintain the low voltage power supply. The utility model discloses an electronic chassis of four-wheel low-speed adopts high-pressure platform to supply power, and energy utilization efficiency is high, charges soon, can be applicable to the vehicle that the power consumption is big, need work for a long time well.

Description

Four-wheel low-speed electric chassis and vehicle with same
Technical Field
The utility model relates to a small-tonnage four-wheel low-speed electric chassis technical field relates to a four-wheel low-speed electric chassis, in addition, still in particular to vehicle that adopts above-mentioned four-wheel low-speed electric chassis.
Background
For a small-tonnage (about 2 tons) four-wheel low-speed electric chassis, the chassis is mostly applied to sightseeing vehicles, patrol vehicles and other scenes, a power battery source of the chassis generally uses a low-voltage 48/60/72V platform, the front axle load of the chassis is not large, the steering generally adopts mechanical steering, the braking generally adopts a pull wire type or an oil brake, the parking generally adopts a manual pull wire type, the walking generally adopts an alternating current asynchronous motor, an electric control system of the chassis is mainly used for realizing motor control and forward and backward movement, and the connection between the steering and the braking is not much.
The existing small-tonnage four-wheel low-speed electric chassis has the following defects:
1. the front axle has low bearing capacity, generally less than 1 ton, and is not suitable for the field of special vehicles with large front axle load;
2. the power battery adopts a low-voltage platform, is slow to charge and is not suitable for the field which consumes large energy and requires long-time work;
3. an alternating current asynchronous motor is adopted for walking, so that the current is large, the loss is large, and the energy conversion efficiency is not high;
4. mechanical steering and mechanical braking are adopted, and the whole vehicle control is centralized on a motor driving and controlling device, so that unmanned driving is not facilitated;
5. for a small-tonnage chassis, the space is limited, the power density of the alternating current asynchronous motor is not large, the power and the torque of the selected motor are limited, and the maneuverability and the climbing performance of the whole vehicle are not high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a four-wheel low-speed electric chassis to solve the power battery that current little tonnage four-wheel low-speed electric chassis exists and adopt the low pressure platform, charge slowly, be not suitable for the technical problem in the field that the power consumption is big, require long-time work simultaneously.
According to one aspect of the utility model, a four-wheel low-speed electric chassis is provided, which comprises a front axle, a rear axle, a plate spring, a frame, a cab and tires, wherein the front axle and the rear axle are respectively connected with the frame through the plate spring, the cab is arranged at the front end of the frame, the tires are respectively arranged on the front axle and the rear axle, the four-wheel low-speed electric chassis also comprises an air conditioning system, a walking system for driving the rear axle to walk, a steering system acting on the front axle to control steering, a braking system acting on the front and rear four wheels to brake and two wheels acting on the rear axle to park, and an electric control system for realizing control function,
the electric control system comprises a power supply system and a vehicle control unit, the power supply system is respectively and electrically connected with the traveling system, the steering system, the braking system and the vehicle control unit, the vehicle control unit is respectively and communicatively connected with the power supply system, the traveling system, the steering system and the braking system,
the power supply system comprises a storage battery, a power battery, a high-voltage distribution box, a DC-DC power module and a master switch, wherein the storage battery supplies normal power to the power battery and also supplies power to a braking system through the master switch, the storage battery is used for supplying power to a traveling system, a steering system and a vehicle control unit at low voltage after being powered on through a key switch and simultaneously awakening a BMS system of the power battery, the power battery is used for outputting high voltage to the high-voltage distribution box after receiving a high-voltage power-on instruction, the high-voltage distribution box is used for distributing the high voltage output by the power battery to the traveling system, the steering system, the air conditioning system and the DC-DC power module, and the DC-DC power module is used for supplying low-voltage.
Furthermore, the walking system comprises a walking motor directly connected with the rear axle, a walking motor drive controller used for driving and controlling the walking motor and a water cooling system used for providing cooling water for the walking motor and the walking motor drive controller, and the walking motor adopts a water-cooled permanent magnet synchronous motor.
Further, the water cooling system is also used for providing cooling water for the high-voltage distribution box.
Further, the steering system adopts a hydraulic power-assisted steer-by-wire system.
Furthermore, the brake system adopts a line control oil pressure brake mode and an electronic pull-type parking mode.
Further, still include the intelligent driving module who is used for realizing intelligent driving function, the intelligent driving module is connected with the battery electricity, the intelligent driving module still with vehicle control unit communication is connected.
The intelligent driving system comprises a GPS module, a laser sensor, a radar and a camera, wherein the GPS module, the laser sensor, the radar and the camera are all connected with an intelligent driving module, the intelligent driving module is used for carrying out path planning and scene recognition according to information acquired by the GPS module, the laser sensor, the radar and the camera, generating a control signal and transmitting the control signal to the vehicle control unit, and the vehicle control unit controls the working state of at least one of a walking system, a steering system and a braking system according to the received control signal.
Furthermore, the intelligent driving module further comprises a remote control module which is used for being in communication connection with a remote terminal and/or a cloud server, the remote control module is electrically connected with the storage battery, the storage battery supplies normal power to the remote control module, the remote control module is used for receiving a remote control instruction sent by the remote terminal and/or the cloud server to carry out remote control power-on, and the storage battery is also used for supplying low-voltage power to the walking system, the steering system and the whole vehicle controller after the remote control power-on.
The utility model also provides a vehicle adopts as above four-wheel low-speed electric chassis.
The utility model discloses following beneficial effect has:
the utility model discloses a four-wheel low-speed electric chassis, give power battery power supply normal electricity through the battery, even if also can carry out real-time supervision and control to power battery under the stall state, ensure power battery's safety, still supply power for braking system through always opening, as long as total switching closes, braking system can use, when the high voltage falls the electricity in order to guarantee to drive a vehicle to appear, braking system still can normally work, the security of driving has been improved, and, the high-tension electricity of power battery output is exported for traveling system through high-voltage distribution box, a steering system is in order to supply its high-pressure work, still carry out real-time low pressure charging for the battery through DC-DC power module simultaneously, thereby ensure that the battery can maintain the low voltage power supply. The utility model discloses an electronic chassis of four-wheel low-speed adopts high-pressure platform to supply power, and energy utilization efficiency is high, charges soon, can be applicable to the vehicle that the power consumption is big, need work for a long time well.
In addition, the utility model discloses an adopt vehicle of above-mentioned four-wheel low-speed electric chassis to have above-mentioned advantage equally.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural diagram of a four-wheel low-speed electric chassis according to a preferred embodiment of the present invention at a first viewing angle.
Fig. 2 is a schematic structural diagram of a four-wheel low-speed electric chassis according to a preferred embodiment of the present invention at a second viewing angle.
Fig. 3 is a schematic diagram of a power supply framework of an electrical control system of a four-wheel low-speed electric chassis according to a preferred embodiment of the present invention.
Fig. 4 is a schematic diagram of a control framework of an electrical control system of a four-wheel low-speed electric chassis according to a preferred embodiment of the present invention.
Description of the reference numerals
1. A front axle; 2. a rear axle; 3. a plate spring; 4. a frame; 5. a cab; 6. a tire; 7. a traveling system; 8. a steering system; 9. a braking system; 11. an intelligent driving module; 12. a GPS module; 13. a laser sensor; 14. a radar; 15. a camera; 16. an air conditioning system; 101. a power supply system; 102. a vehicle control unit; 103. a storage battery; 104. a power battery; 105. a high voltage distribution box; 106. a DC-DC power supply module; 107. opening the main; 71. a traveling motor; 72. a walking motor driving controller; 73. a water cooling system; 111. and a remote control module.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered below.
As shown in fig. 1 to 4, the preferred embodiment of the present invention provides a four-wheel low-speed electric chassis, especially a four-wheel low-speed electric chassis with small tonnage, wherein the small tonnage is generally about 2 tons, and the chassis includes a front axle 1, a rear axle 2, a leaf spring 3, a frame 4, a cab 5 and tires 6, the frame 4 is disposed on the front axle 1 and the rear axle 2, and the front axle 1 and the rear axle 2 are respectively connected with the frame 4 through the leaf spring 3, the cab 5 is disposed at the front end of the frame 4, the tires 6 are respectively disposed on the front axle 1 and the rear axle 2, specifically, two sides of the front axle 1 and two sides of the rear axle 2 are respectively provided with one tire 6, the front axle 1, the rear axle 2, the leaf spring 3, the frame 4, the cab 5 and the tires 6 constitute a conventional two-type chassis framework. In addition, the four-wheel low-speed electric chassis further comprises a traveling system 7 for driving the rear axle 2 to travel, a steering system 8 for controlling steering by acting on the front axle 1, a braking system 9 for braking by acting on the front and rear four wheels and parking by acting on the two wheels of the rear axle 2, and an electric control system for realizing a control function, wherein the electric control system is in communication connection with the traveling system 7, the steering system 8 and the braking system 9 to control the electric chassis to travel, steer, brake and park. Specifically, the electric control system comprises a power supply system 101 and a vehicle control unit 102, the power supply system 101 is electrically connected with the traveling system 7, the steering system 8, the braking system 9 and the vehicle control unit 102 respectively, the vehicle control unit 102 serves as a control center of the electric chassis, and the vehicle control unit 102 is in communication connection with the power supply system 101, the traveling system 7, the steering system 8 and the braking system 9 respectively, and specifically communicates through a CAN bus.
The power supply system 101 comprises a storage battery 103, a power battery 104, a high-voltage distribution box 105, a DC-DC power supply module 106 and a main switch 107, wherein the storage battery 103 is electrically connected with the power battery 104 and the main switch 107 respectively, the main switch 107 is electrically connected with a traveling system 7, a steering system 8, a braking system 9 and a whole vehicle controller 102 respectively, the power battery 104 is electrically connected with the high-voltage distribution box 105, the high-voltage distribution box 105 is electrically connected with the traveling system 7, the steering system 8 and the DC-DC power supply module 106 respectively, and the DC-DC power supply module 106 is electrically connected with the storage battery 103. The battery 103 supplies normal power to a BMS (battery management System) of the power battery 104, and can monitor and control the power battery 104 in real time even in a shutdown state, thereby ensuring the safety of the power battery 104. The storage battery 103 supplies power to the braking system 9 through the main switch 107, and the braking system 9 can be used as long as the main switch 107 is closed, so that the braking system 9 can still work normally when high-voltage power failure occurs during driving, and the driving safety is improved. The storage battery 103 also supplies power to the traveling system 7, the steering system 8 and the vehicle control unit 102 at low voltage after being powered on through the key switch, so as to ensure that the vehicle control unit can work normally, for example, the vehicle control unit of the traveling system 7, the drive-by-wire steering controller and the drive-by-wire steering controller of the steering system 8, the oil pump motor drive-by-wire controller, the parking controller of the braking system 9, the display screen, the wheel speed sensor and the like are supplied with power at low voltage, and simultaneously the BMS of the power battery 104 is awakened, so that the self-detection and the pre-. The key switch is powered ON, namely when the key is in an ON gear under the condition that the master switch 107 is closed. After a key is turned to an ignition gear, the vehicle controller 102 detects an ignition signal and generates a high-voltage power-on command to be sent to the BMS of the power battery 104, the power battery 104 outputs high voltage to the high-voltage power-on box 105 after receiving the high-voltage power-on command, the high voltage output by the power battery 104 exceeds 300V, the high-voltage power-on box 105 distributes the high voltage output by the power battery 104 to the traveling system 7, the steering system 8 and the DC-DC power module 106, a standby interface is reserved for the convenience of being installed on a vehicle, and the DC-DC power module 106 converts the high voltage into low voltage to provide real-time low-voltage charging for the storage battery 103, so that the storage battery 103 can maintain low-voltage power supply.
The utility model discloses a four-wheel low-speed electric chassis supplies the normal electricity for power battery 104 through battery 103, even if also can carry out real-time supervision and control to power battery 104 under the stall state, ensures power battery 104's safety, battery 103 still supplies power for braking system 9 through always opening 107, as long as always opening 107 closed, braking system 9 can use to when guaranteeing that the high pressure falls the electricity in driving appearance, braking system 9 still can normally work, has improved the security of driving, and, the high tension electricity of power battery 104 output is exported through high-voltage distribution box 105 and is given traveling system 7, a steering system 8 in order to supply its high-pressure work, still carry out real-time low voltage charging for battery 103 through DC-DC power module 106 simultaneously, thereby ensure that battery 103 can maintain the low pressure power supply. The utility model discloses an electronic chassis of four-wheel low-speed adopts high-pressure platform to supply power, and energy utilization efficiency is high, charges soon, can be applicable to the vehicle that the power consumption is big, need work for a long time well.
It can be understood that the rear axle 2 of the four-wheel low-speed electric chassis is a drive axle, the walking system 7 comprises a walking motor 71 directly connected with the rear axle 2, a walking motor driver 72 for driving and controlling the walking motor 71, and a water cooling system 73 for providing cooling water for the walking motor 71 and the walking motor driver 72, wherein the walking motor 71 adopts a water-cooled permanent magnet synchronous motor. Wherein, the walking motor 71 and the walking motor driving controller 72 are both arranged on the rear axle 2. Through adopting PMSM and high-voltage power supply platform cooperation, compare in current low pressure power supply platform and asynchronous machine, its power density is bigger, has reduced the electric energy loss, has promoted energy conversion efficiency by a wide margin, and the mobility and the climbing performance of whole car are also better. It will be appreciated that the water cooling system 73 is also preferably used to provide cooling water to the high voltage distribution box 105 to prevent excessive temperatures.
In addition, it can be understood that the steering system 8 acts on the front axle 1, and a hydraulic power-assisted steer-by-wire system is adopted, and specifically, a motor rotates a steering wheel or a steering column to replace a human hand to rotate, so that a steering angle can be provided to be input to a hydraulic steering gear to control chassis steering, that is, the steering angle of the chassis can be controlled by controlling the rotation angle of the motor, and thus, both manual steering and unmanned steering can be realized. The power of the hydraulic steering gear is from a motor pump, and the hydraulic steering gear is particularly suitable for occasions of steering load. The braking system 9 can realize the service braking function and the parking function, the service braking adopts a wire control oil pressure braking mode, the service braking is simultaneously acted on the front and the rear four wheels, a motor is specifically adopted to control the action of a brake master cylinder to replace a foot to step on a brake pedal to push the master cylinder, and meanwhile, when a person steps on the brake, the motor plays a boosting role to assist in pushing the master cylinder, so that the motor can be coupled to play a role and can also play a role independently. The parking adopts an electronic stay-supported parking mode and acts on two wheels of the rear axle 2. Therefore, the hydraulic power-assisted steer-by-wire system, the brake system 9 adopting the oil pressure brake-by-wire mode and the electronic pull-wire parking mode, the power supply system 101 and the control framework are matched, so that the system can be switched between manned driving and unmanned driving, and the functions are more intelligent and diversified.
It can be understood that, as is preferable, the four-wheel low-speed electric chassis further includes an intelligent driving module 11 for implementing a driving function, the intelligent driving module 11 is electrically connected with a storage battery 103, the storage battery 103 provides low-voltage power for the intelligent driving module 11, and the intelligent driving module 11 is further in communication connection with the vehicle control unit 102. The four-wheel low-speed electric chassis further comprises a GPS module 12, a laser sensor 13, a radar 14 and a camera 15, wherein the GPS module 12, the laser sensor 13, the radar 14 and the camera 15 are all connected with an intelligent driving module 11, the radar 14 adopts a millimeter wave radar, the intelligent driving module 11 is used for carrying out path planning and scene recognition according to information obtained by the GPS module 12, the laser sensor 13, the radar 14 and the camera 15, generating a control signal and transmitting the control signal to the vehicle controller 102, and the vehicle controller 102 controls the working state of at least one of the walking system 7, the steering system 8 and the braking system 9 according to the received control signal, so that intelligent walking, steering, braking and parking control are realized, and an intelligent driving function is realized. Wherein, the GPS module 12 and the laser sensor 13 are arranged on the top of the cab 5, the radar 14 is arranged on the front face of the cab 5, the camera 15 can be arranged on the top or the front face of the cab 5 so as to obtain a front road image with a larger range, and the GPS module 12, the laser sensor 13, the radar 14 and the camera 15 are all electrically connected with the storage battery 103, and the storage battery 103 provides low-voltage power supply for the storage battery 103. It is understood that the positions of the GPS module 12, the laser sensor 13, the radar 14, and the camera 15 may be adjusted according to actual needs. The camera 15 and the laser sensor 13 are connected to the intelligent driving module 11 through ethernet, the radar 14 is in communication connection with the intelligent driving module 11 through a CAN bus, the intelligent driving module 11 is in communication connection with the vehicle controller 102 through the CAN bus, and the vehicle controller 102 is in communication connection with the driving controller of the traveling system 7, the braking controller and the parking controller of the braking system 9, the steering controller of the steering system 8, the DC-DC power module 106, the display screen, the BMS of the wheel speed sensor power battery 104, the GPS terminal and the like through the CAN bus.
The intelligent driving module 11 comprises a remote control module 111 which is used for being in communication connection with a remote terminal and/or a cloud server, the remote control module 111 is electrically connected with the storage battery 103, the storage battery 103 supplies normal power to the remote control module 111, so that remote control can be realized under the condition that the main switch 107 is closed, the remote control module 111 can receive a remote control instruction sent by the remote terminal and/or the cloud server to carry out remote control electrification, and the storage battery 103 supplies power to the walking system 7, the steering system 8 and the whole vehicle controller 102 at low voltage after the remote control electrification.
In addition, as is preferable, the four-wheel low-speed electric chassis further comprises an air conditioning system 16, the air conditioning system 16 is arranged on the rear wall of the vehicle frame 4 and the cab 5, the air conditioning system 16 is electrically connected with a high-voltage distribution box 105, specifically, the high-voltage distribution box 105 distributes the high-voltage power output by the power battery 104 to an air conditioning motor driver of the air conditioning system 16, and the air conditioning motor driver drives and controls the operation of an air conditioning compressor.
The utility model discloses a four-wheel low-speed electric chassis, its each module is like running system, braking system, a steering system, battery management system, intelligent driving module relatively independent system of forming, all has independent functional control and safety strategy mechanism, uses vehicle control unit to interact as central pivot simultaneously to under certain control strategy, carry out mutual control through vehicle control unit, its control strategy mainly includes the triplex: the manned strategy, the unmanned strategy and the whole vehicle safety strategy are explained in detail as follows:
1. and (3) a manned strategy: the brake signal, the accelerator signal and the gear signal are directly sent to the walking motor driving and controlling device by human operation, the motor is directly driven to rotate, and at the moment, the motor is in a torque loop mode;
2. unmanned strategy: the intelligent driving module is used for path planning and scene recognition by receiving and processing relevant information of the GPS module, the millimeter wave radar, the laser sensor and the camera, and meanwhile, intelligent walking, steering, braking and parking control is realized by communication between the whole vehicle controller and the running vehicle controller, the braking controller, the steering controller and the parking vehicle controller, and at the moment, the motor is in a speed loop mode;
3. and (4) security policy: based on the safety mechanism of each module, the speed limit, the deceleration parking and the scram of the whole vehicle are controlled according to the safety grade, and meanwhile, when the scram button of the whole vehicle is triggered, the related instruction is sent by the whole vehicle controller to scram and the high voltage is applied.
It will be appreciated that another embodiment of the present invention also provides a vehicle, preferably employing a four-wheeled low speed electric chassis as described in the above preferred embodiment, which may be a sanitation vehicle such as a sweeping vehicle, a washing vehicle or the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A four-wheel low-speed electric chassis comprises a front axle (1), a rear axle (2), a plate spring (3), a frame (4), a cab (5) and tires (6), wherein the front axle (1) and the rear axle (2) are respectively connected with the frame (4) through the plate spring (3), the cab (5) is arranged at the front end of the frame (4), the tires (6) are respectively arranged on the front axle (1) and the rear axle (2),
also comprises an air conditioning system (16), a traveling system (7) for driving the rear axle (2) to travel, a steering system (8) acting on the front axle (1) to control the steering, a braking system (9) acting on the front and rear four wheels to brake and acting on the two wheels of the rear axle (2) to park and an electric control system for realizing the control function,
the electric control system comprises a power supply system (101) and a vehicle control unit (102), the power supply system (101) is respectively and electrically connected with the traveling system (7), the steering system (8), the braking system (9) and the vehicle control unit (102), the vehicle control unit (102) is respectively and communicatively connected with the power supply system (101), the traveling system (7), the steering system (8) and the braking system (9),
the power supply system (101) comprises a storage battery (103), a power battery (104), a high-voltage distribution box (105), a DC-DC power supply module (106) and a master switch (107), wherein the storage battery (103) supplies normal power to the power battery (104) and also supplies power to the brake system (9) through the master switch (107), the storage battery (103) is used for supplying low-voltage power to the traveling system (7), the steering system (8) and the whole vehicle controller (102) after being powered on through a key switch and simultaneously awakening the BMS system of the power battery (104), the power battery (104) is used for outputting high-voltage power to the high-voltage distribution box (105) after receiving a high-voltage power-on command, the high-voltage distribution box (105) is used for distributing the high-voltage power output by the power battery (104) to the traveling system (7), the steering system (8), the air conditioning system (16) and the DC-DC power supply module, the DC-DC power module (106) is used for providing low-voltage charging for the storage battery (103).
2. The four-wheel low-speed electric chassis according to claim 1,
the traveling system (7) comprises a traveling motor (71) directly connected with the rear axle (2), a traveling motor drive controller (72) used for driving and controlling the traveling motor (71) and a water cooling system (73) used for providing cooling water for the traveling motor (71) and the traveling motor drive controller (72), and the traveling motor (71) adopts a water-cooled permanent magnet synchronous motor.
3. The four-wheel low-speed electric chassis according to claim 2,
the water cooling system (73) is also used for providing cooling water for the high-voltage distribution box (105).
4. The four-wheel low-speed electric chassis according to claim 2,
the steering system (8) adopts a hydraulic power-assisted steer-by-wire system.
5. The four-wheel low-speed electric chassis according to claim 4,
the brake system (9) adopts a line control oil pressure brake mode and an electronic pull-type parking mode.
6. The four-wheel low-speed electric chassis according to claim 5,
the intelligent driving system is characterized by further comprising an intelligent driving module (11) used for achieving an intelligent driving function, the intelligent driving module (11) is electrically connected with the storage battery (103), and the intelligent driving module (11) is further in communication connection with the whole vehicle controller (102).
7. The four-wheel low-speed electric chassis according to claim 6,
the intelligent driving system is characterized by further comprising a GPS module (12), a laser sensor (13), a radar (14) and a camera (15), wherein the GPS module (12), the laser sensor (13), the radar (14) and the camera (15) are all connected with an intelligent driving module (11), the intelligent driving module (11) is used for carrying out path planning and scene recognition according to information obtained by the GPS module (12), the laser sensor (13), the radar (14) and the camera (15), generating a control signal and transmitting the control signal to a vehicle control unit (102), and the vehicle control unit (102) controls the working state of at least one of a walking system (7), a steering system (8) and a braking system (9) according to the received control signal.
8. The four-wheel low-speed electric chassis according to claim 6,
the intelligent driving module (11) further comprises a remote control module (111) which is used for being in communication connection with a remote terminal and/or a cloud server, the remote control module (111) is electrically connected with the storage battery (103), the storage battery (103) supplies normal power to the remote control module (111), the remote control module (111) is used for receiving a remote control instruction sent by the remote terminal and/or the cloud server to conduct remote control power-on, and the storage battery (103) is further used for supplying low-voltage power to the walking system (7), the steering system (8) and the whole vehicle controller (102) after the remote control power-on.
9. A vehicle characterized by using the four-wheel low-speed electric chassis according to any one of claims 1 to 8.
CN201921610385.8U 2019-09-25 2019-09-25 Four-wheel low-speed electric chassis and vehicle with same Active CN211468173U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
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CN112706574A (en) * 2021-01-12 2021-04-27 南通明诺电动科技股份有限公司 Unmanned pure electric sanitation vehicle chassis
CN113715757A (en) * 2021-08-25 2021-11-30 浙江亚太智能网联汽车创新中心有限公司 Whole car electrical framework suitable for intelligent networking vehicle
CN113928132A (en) * 2021-10-25 2022-01-14 智能移动机器人(中山)研究院 High-performance chassis platform of boundary security protection unmanned patrol vehicle
CN115320728A (en) * 2022-08-17 2022-11-11 奇瑞汽车股份有限公司 Slide platform of vehicle and vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112706574A (en) * 2021-01-12 2021-04-27 南通明诺电动科技股份有限公司 Unmanned pure electric sanitation vehicle chassis
CN113715757A (en) * 2021-08-25 2021-11-30 浙江亚太智能网联汽车创新中心有限公司 Whole car electrical framework suitable for intelligent networking vehicle
CN113715757B (en) * 2021-08-25 2023-08-15 浙江亚太智能网联汽车创新中心有限公司 Whole vehicle electric architecture suitable for intelligent network-connected vehicle
CN113928132A (en) * 2021-10-25 2022-01-14 智能移动机器人(中山)研究院 High-performance chassis platform of boundary security protection unmanned patrol vehicle
CN115320728A (en) * 2022-08-17 2022-11-11 奇瑞汽车股份有限公司 Slide platform of vehicle and vehicle
CN115320728B (en) * 2022-08-17 2024-02-27 奇瑞汽车股份有限公司 Scooter platform of vehicle and vehicle

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