Electric vehicle powered by four wheel hub motors

Abstract

An electric vehicle driven by four wheel hub motors, comprising a vehicle body (1), two front wheels (2) and two rear wheels (3) being provided on a chassis of the vehicle body (1), characterized in that two front wheels (2) are independently connected to a front wheel motor (4), two rear wheels (3) are independently connected to a rear wheel motor (5), thereby enabling four-motor drive; in that a battery group (6) is provided on the vehicle body (1), which battery group is electrically connected to a motor control unit (7), to which the two front wheel motors (4) and the two rear wheel motors (5) are all electrically connected.

Description

[0001] The present utility model relates to the technical field of an electric vehicle powered by four wheel hub motors, specifically an electric vehicle powered by four wheel hub motors.

[0002] An electric vehicle refers to a vehicle that uses electricity as its power source, drives its wheels with an electric motor, and travels in a way that meets the relevant road traffic requirements and safety regulations. It is a new energy vehicle. Under the influence of energy and environmental issues, the automotive industry has gradually developed energy-saving and environmentally friendly electric vehicles. Electric vehicles have the advantages of pollution-free operation, low noise, and simple structure, and have gradually become the mainstream of the automotive industry.

[0003] Existing electric vehicles are usually powered by two motors, the vehicle is driven by two motors in front and rear and half axles arranged on both sides of the gearbox, the power loss is large, the manufacturing costs are high.

[0004] The technical problem to be solved by the present utility model is to eliminate the deficiency of the above-mentioned technology of providing an electric vehicle powered by four wheel hub motors.

[0005] In order to solve the above-mentioned technical problem, the technical solution provided by the present utility model is an electric vehicle driven by four wheel hub motors, comprising a vehicle body, two front wheels and two rear wheels are provided on a chassis of the vehicle body, two front wheels are independently connected to a front wheel motor, two rear wheels are independently connected to a rear wheel motor, thereby enabling four-motor drive; a battery group is provided on the vehicle body, which battery group is electrically connected to a motor control unit, to which two front wheel motors and two rear wheel motors are all electrically connected.

[0006] Furthermore, a vehicle main control system is provided on the vehicle body, the engine control unit is connected to the vehicle main control system.

[0007] Furthermore, a converter is electrically connected between the battery group and the engine control unit.

[0008] Furthermore, a DC motor is used for both the front wheel motor and the rear wheel motor.

[0009] Furthermore, a DC / DC converter is used for the converter, so that the DC voltage is converted into a voltage suitable for electronic devices, a stable voltage of the power supply is provided, at the same time the power consumption and heat generation are reduced, the service life of the device is extended and the adaptability and reliability of the device are improved.

[0010] Furthermore, a ternary lithium battery, a lithium iron phosphate battery, a fully solid lithium metal battery, a lead-lithium battery or a sodium battery is used for the battery group.

[0011] The advantage of the present utility model compared to the prior art is that the four-motor drive saves two gearboxes and four half-axles, no conversion of a pinion gear is required, the power loss is lower and it is more energy-efficient, at the same time the processing and manufacturing costs are reduced, the space consumption is reduced, so that the components on the vehicle can be arranged more scientifically. Explanation of the illustrations Fig. shows a diagram of an electrical part of an electric vehicle of the present utility model driven by four wheel hub motors. Fig. shows a structural diagram of an electric vehicle of the present utility model driven by four wheel hub motors. As shown in pictures:

[0012] (1) Vehicle body; (2) Front wheel; (3) Rear wheel; (4) Front wheel motor; (5) Rear wheel motor; (6) Battery group; (7) Engine control unit; (8) Vehicle main control system; (9) Converter. Embodiments

[0013] In order to clarify the purpose, technical solution, and advantages of the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model are described clearly and completely below in conjunction with the figures in the embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model and not the entire embodiments. The components of the embodiments of the present utility model described and indicated in the figures attached hereto can be arranged and configured using various configurations.

[0014] In the embodiment 1, in conjunction with Fig. An electric vehicle powered by four wheel hub motors, comprising a vehicle body (1), two front wheels (2) and two rear wheels (3) being provided on a chassis of the vehicle body (1), two front wheels (2) being independently connected to a front wheel motor (4), and two rear wheels (3) being independently connected to a rear wheel motor (5), thereby enabling four-motor drive; a battery pack (6) being electrically connected to a motor control unit (7) to which the two front wheel motors (4) and the two rear wheel motors (5) are all electrically connected. If the rotational speed of the left and right wheels is different during use, a differential may be added; if the battery pack (6) is connected to the front wheel motor (4) and the rear wheel motor (5), a connector may be provided by means of a circuit board.

[0015] A vehicle main control system (8) is provided on the vehicle body (1), and the engine control unit (7) is connected to the vehicle main control system (8). During driving, the user inputs a command to the engine control unit (7) by operating the vehicle main control system (8) to enable control of the front-wheel motor (4) and the rear-wheel motor (5).

[0016] A converter (9) is electrically connected between the battery group (6) and the engine control unit (7). A DC / DC converter is used for the converter (9), so that the DC voltage is converted into a voltage suitable for electronic devices, a stable voltage of the power supply is provided, at the same time the power consumption and heat generation are reduced, the service life of the device is extended and the adaptability and reliability of the device are improved.

[0017] A DC motor is used for both the front wheel motor (4) and the rear wheel motor (5).

[0018] For the battery group (6), a ternary lithium battery, a lithium iron phosphate battery, a fully solid lithium metal battery, a lead-lithium battery or a sodium battery is used.

[0019] In the illustration of the exemplary embodiment of the present utility model, it should be explained that the directional or positional relationships indicated by the terms "center," "top," "bottom," "left," "right," "vertical," "horizontal," "inside," and "outside" refer to the directional or positional relationships shown based on the illustrations or to the usual directional or positional relationships when using the utility model product. This merely serves to facilitate the illustration of the present utility model and simplify the description, rather than indicating or implying that the indicated devices or components have a specific direction, must be constructed, and operated in a specific direction, and therefore cannot be understood as a limitation of the present utility model. Furthermore, the terms "first," "second," "third," etc.used only to distinguish the representation and cannot be understood as an indication or suggestion of relative importance.

[0020] Furthermore, the appearance of terms such as "horizontal," "vertical," or "hanging" does not imply that the component is absolutely horizontal or hanging, but may be slightly tilted. For example, while "horizontal" simply means that the direction is more horizontal relative to "vertical," this does not mean that the structure must be completely horizontal; it may be slightly tilted.

[0021] In the description of the present utility model, “several” represents at least two.

[0022] In the description of the embodiments of the present utility model, it should further be explained that the terms "provided," "arranged," "connected," or "connection" should be understood in a general sense, e.g., it may be a fixed connection, a detachable connection, or a connection as a whole; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two components, unless explicitly prescribed and limited otherwise. For those skilled in the art, the specific meaning of the above terms in the present utility model can be understood depending on the circumstances.

[0023] The present utility model and its embodiments are described above. This description is not limiting. The embodiment shown in the figures is exclusively one of the embodiments of the present utility model, and the practical structure is not limited thereto. In summary, if a person skilled in the art is prompted to design similar structures and embodiments without deviating from the purpose of creating the present utility model, they fall within the scope of protection of the present utility model.

Claims

[1] Electric vehicle driven by four wheel hub motors, comprising a vehicle body (1), two front wheels (2) and two rear wheels (3) are provided on a chassis of the vehicle body (1), characterized by , that two front wheels (2) are independently connected to a front wheel motor (4), two rear wheels (3) are independently connected to a rear wheel motor (5), thereby enabling a four-motor drive; that a battery group (6) is provided on the vehicle body (1), which is electrically connected to a motor control unit (7), to which the two front wheel motors (4) and the two rear wheel motors (5) are all electrically connected. [2] Electric vehicle driven by four wheel hub motors according to claim 1, characterized by , that a vehicle main control system (8) is provided on the vehicle body (1), and the engine control unit (7) is connected to the vehicle main control system (8). [3] Electric vehicle driven by four wheel hub motors according to claim 1, characterized by , that a converter (9) is electrically connected between the battery group (6) and the engine control unit (7). [4] Electric vehicle driven by four wheel hub motors according to claim 3, characterized by , that a DC motor is used for both the front wheel motor (4) and the rear wheel motor (5). [5] Electric vehicle driven by four wheel hub motors according to claim 4, characterized by , that a DC / DC converter is used for the converter (9) so that the DC voltage is converted into a voltage suitable for electronic devices, a stable power supply voltage is provided, while power consumption and heat generation are reduced, the lifespan of the device is extended and the adaptability and reliability of the device are improved. [6] Electric vehicle driven by four wheel hub motors according to claim 1, characterized by , that for the battery group (6) a ternary lithium battery, a lithium iron phosphate battery, a fully solid lithium metal battery, a lead-lithium battery or a sodium battery is used.

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