Cab

Abstract

The cab comprises a driving compartment body and a vehicle door, the driving compartment body comprises a front portion and side portions located on the two sides of the front portion, wheel openings are formed in the side portions and used for being matched with front wheels, the wheel openings and the front wheels are concentrically arranged, the vehicle door is connected to the side portions and can be opened relative to the side portions, and the vehicle door comprises a front edge and a rear edge which are arranged in the X direction; in the X direction, the front edge and the rear edge of the vehicle door are located on the two sides of the center point of the wheel opening respectively, in the X direction, the distance between the rear edge and the center point of the wheel opening is L1, the distance between the front edge and the rear edge is L2, and the ratio a of L1 to L2 is larger than or equal to 0.65 and smaller than or equal to 0.95. According to the cab, the man-machine design of the cab can be optimized, the driving comfort and getting-on and getting-off convenience of a driver are improved, furthermore, the driving length requirement and / or the cab wind resistance design requirement can be considered while the man-machine design of the cab is optimized, and the streamline cab with low wind resistance is formed.

Description

Technical Field

[0001] The present application relates to the field of driving technology, and in particular to a driving cab. Background Art

[0002] The cab is the driver's main workplace and is also the main component of the related vehicle products. Therefore, the design of the cab is not only related to the driver's driving comfort, but also to the product competitiveness of the related vehicle products.

[0003] Driving comfort and ease of getting on and off the vehicle are of great concern to drivers because they directly affect the driving experience.

[0004] In addition, reducing the air resistance of the cab is also receiving more and more attention because it can improve the product competitiveness of related vehicle products. This is because the air resistance will increase significantly with the increase of vehicle speed, resulting in a significant increase in the energy consumed due to the increase in air resistance. Under the condition of a certain total energy of the vehicle (for example, a certain battery capacity), this will inevitably affect the vehicle's range. Summary of the invention

[0005] The embodiment of the present application provides a cab that can optimize the human-machine design of the cab within a limited space, thereby improving the driver's driving comfort and the convenience of getting on and off the vehicle. Furthermore, while optimizing the human-machine design of the cab, it can also take into account the driving length requirements and / or the cab wind resistance design requirements, thereby forming a streamlined cab with low wind resistance.

[0006] A first aspect of the present application provides a cab, comprising a cab body and a door, the cab body comprising a front portion and side portions located on both sides of the front portion, the side portions being provided with wheel openings, the wheel openings being used to cooperate with the front wheels and being arranged concentrically with the front wheels, the door being connected to the side portions and being openable relative to the side portions, the door comprising a leading edge and a trailing edge arranged along an X direction, in the X direction, the leading edge and the trailing edge of the door being respectively located on both sides of a center point of the wheel opening, and in the X direction, the distance between the trailing edge and the center point of the wheel opening is L1, the distance between the leading edge and the trailing edge is L2, and a ratio a of L1 to L2 satisfies: 0.65≤a≤0.95.

[0007] According to any embodiment of the aforementioned first aspect of the present application, in the X direction, a ratio a of a distance L1 between the rear edge of the door and the center point of the wheel opening to a distance L2 between the front edge and the rear edge satisfies: 0.75≤a≤0.85.

[0008] According to any implementation of the aforementioned first aspect of the present application, the distance L1 between the rear edge of the vehicle door and the center point of the wheel opening satisfies a value range of 630mm≤L1≤1030mm.

[0009] According to any implementation of the aforementioned first aspect of the present application, the distance L1 between the rear edge of the vehicle door and the center point of the wheel opening satisfies a value range of 680mm≤L1≤980mm.

[0010] According to any embodiment of the aforementioned first aspect of the present application, the side portion includes a pillar. In the X direction, the pillar is located on the side of the rear edge of the door away from the front portion. The size of the pillar is L3, and the value range of L3 satisfies: 60mm≤L3≤260mm.

[0011] According to any implementation of the aforementioned first aspect of the present application, in the X direction, the maximum dimension of the driving compartment is L4, and the value range of L4 satisfies: 1550mm≤L4≤1950mm.

[0012] According to any implementation of the aforementioned first aspect of the present application, the front portion includes a windshield portion, which is inclined relative to the vertical plane and has an inclination angle of α1, wherein the value range of α1 satisfies: 15°≤α1≤25°.

[0013] According to any embodiment of the aforementioned first aspect of the present application, the front portion includes a first zone portion and a second zone portion arranged in the Z direction, and the second zone portion is located on the side of the first zone portion facing the windshield portion and is connected to the windshield portion; along the Z direction, the second zone portion is inclined relative to the vertical plane and the inclination angle is α2, and the difference between the inclination angle α1 of the windshield portion relative to the vertical plane and the inclination angle α2 of the second zone portion relative to the vertical plane satisfies: 0°≤α1-α2≤5°.

[0014] According to any implementation of the aforementioned first aspect of the present application, the inclination angle of the first zone relative to the vertical plane is smaller than the inclination angle of the second zone relative to the vertical plane, and the inclination angle of the first zone relative to the vertical plane is α3, 0°≤α3≤10°.

[0015] According to any implementation of the aforementioned first aspect of the present application, the maximum dimension of the first zone along the Z direction is L5, and the value range of L5 satisfies 320mm≤L5≤420mm.

[0016] According to any embodiment of the aforementioned first aspect of the present application, the front portion also includes a third zone portion. Along the Z direction, the third zone portion is located on the side of the windshield portion away from the wheel opening and is connected to the windshield portion. The third zone portion is inclined relative to the vertical plane and the inclination angle is α4, and the value range of α4 satisfies: 25°≤α4≤40°.

[0017] A second aspect of the present application provides a chassis, including a cab according to the above embodiment.

[0018] The third aspect of the present application provides a light truck, including a chassis, a cargo box and the cab of the above embodiment, the chassis has front wheels and rear wheels, the center of the front wheel is arranged to coincide with the center of the wheel opening of the cab, and the cargo box is arranged on the chassis.

[0019] According to any embodiment of the aforementioned third aspect of the present application, a front bumper is provided at the front of the cab, and along the Z direction, the distance between the lowest edge of the front bumper and the lower edge of the front wheel is L6, and the value range of L6 satisfies 220mm≤L6≤320mm.

[0020] According to the cab provided by the embodiment of the present application, the door is positioned and designed according to the position of the front wheel center, and compared with the existing light trucks, the position of the driver's sitting position relative to the whole vehicle can be innovated. Among them, the front edge and the rear edge of the door are respectively located on both sides of the center point of the wheel mouth, that is, the front edge of the door is located on the front side of the center point of the wheel mouth along the X direction, and the rear edge of the door is located on the rear side of the center point of the wheel mouth along the X direction, and the distance between the rear edge and the center point of the wheel mouth is greater than the distance between the front edge and the center point of the wheel mouth, so that the driver's sitting position can be moved backward when the length of the cab is constant, and the driver gets on the vehicle from the rear side of the front wheel, so as to improve the convenience of getting on and off the vehicle while fully ensuring the driver's field of vision and operating space.

[0021] Furthermore, by making the ratio a of the distance L1 between the rear edge of the door and the center point of the wheel opening to the distance L2 between the front edge and the rear edge satisfy: 0.65≤a≤0.95, sufficient space can be left at the front to form a streamlined structure at the front of the cab, thereby realizing a low wind resistance cab design, reducing the wind resistance coefficient and energy consumption while ensuring getting on and off the vehicle.

[0022] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0024] Figure 1 is a side view of a chassis provided by an embodiment of the present application;

[0025] Figure 2 A side view of a cab with doors omitted provided by some embodiments of the present application is shown;

[0026] Figure 3 A side view of a cab provided by some embodiments of the present application is shown;

[0027] Figure 4 A top view of a chassis provided by some embodiments of the present application is shown;

[0028] Figure 5 A side view of a cab provided by some other embodiments of the present application is shown;

[0029] Figure 6 A side view of a cab provided by some other embodiments of the present application is shown;

[0030] Figure 7 A side view of a cab provided by some other embodiments of the present application is shown;

[0031] Figure 8 A top view of a cab provided by some embodiments of the present application is shown;

[0032] Fig. 9 A schematic diagram of the structure of a cab provided by some embodiments of the present application is shown;

[0033] Fig.10 A side view of a cab provided by some other embodiments of the present application is shown;

[0034] Fig.11 A schematic diagram of measuring the tilt angle provided by some embodiments of the present application is shown;

[0035] Fig.12 A simplified diagram showing the inclination angle of the first zone provided in some embodiments of the present application;

[0036] Fig.13 A side view of a cab provided by still other embodiments of the present application is shown.

[0037] Description of Figure Numbers:

[0038] 100-chassis; 10-cab; 20-front wheel; 30-rear wheel;

[0039] 1-driving compartment; 11-front; 111-windshield; 112-first zone; 113-second zone; 114-third zone; 12-side; 121-wheel opening; 122-door opening; 123-pillar; 2-door; 3-brake pedal; 4-driving seat; 5-steering mechanism; 51-steering wheel;

[0040] S1-wheel arch area; S2-stepping area.

[0041] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0042] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0043] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0044] See also Figure 1 , Figure 1 A side view of a chassis 100 provided in some embodiments of the present application is shown.

[0045] An embodiment of the present application provides a light truck, which includes a chassis 100 and a cargo box disposed on the chassis 100 .

[0046] A light truck refers to a truck equipped with a cargo box. According to relevant standards, it specifically refers to a truck with a total vehicle length along the X direction less than 6000mm and a total mass less than 4500kg.

[0047] The chassis 100 includes a chassis 100 with a built-in cab and a chassis 100 without a cab installed, that is, a light truck may include a chassis 100 with a built-in cab and a cargo box, and may also include a chassis 100 without a cab installed, a cargo box and a cab 10.

[0048] Taking the chassis 100 without the cab 10 as an example, the chassis 100 can carry multiple functional systems such as a power system (engine and / or power battery, motor, etc.), a transmission system, a suspension system and a braking system. The chassis 100 also has front wheels 20 and rear wheels 30. The transmission system is used to transmit the power of the power system to the front wheels 20 and / or the rear wheels 30 to drive the light truck to move.

[0049] It should be noted that the cab 10 in the embodiment of the present application can be used for the chassis 100 or related vehicle products (e.g., light trucks) of the above-mentioned embodiments, and as a component of the chassis 100 or related vehicle products (e.g., light trucks). Of course, it can also be produced or sold separately as an independent component.

[0050] Please also read Figures 1 to 3 , Figure 2 A side view of a cab 10 provided in some embodiments of the present application with the door 2 omitted is shown. Figure 3 A side view of a cab 10 provided in some embodiments of the present application is shown.

[0051] The embodiment of the present application provides a cab 10, which includes a cab body 1 and a door 2. The cab body 1 includes a front portion 11 and side portions 12 located on both sides of the front portion 11. The side portions 12 are provided with wheel openings 121, which are used to cooperate with the front wheels 20 and are arranged concentrically with the front wheels 20. The door 2 is connected to the side portions 12 and can be used to open or close the door opening of the door located at the side portions 12. The door 2 includes a front edge and a rear edge arranged along the X direction. In the X direction, the front edge and the rear edge of the door 2 are respectively located on both sides of the center point of the wheel opening 121, and in the X direction, the distance between the front edge and the rear edge is L2, and the ratio a of the distance L1 between the rear edge of the door 2 and the center point of the wheel opening 121 and the distance L2 between the front edge and the rear edge satisfies: 0.65≤a≤0.95.

[0052] In this article, the direction definition refers to the vehicle coordinate system. For example, the X direction is parallel to the ground and points to the front of the vehicle, which is used to describe the front-to-back direction of the cab; the Y direction is parallel to the ground and points to the left of the driver, which is used to describe the left-right direction of the cab; the Z direction is parallel to the ground and points upward, which is used to describe the up-down direction of the cab. In addition, the Y0 plane is the plane of symmetry between the left and right centers of the cab, the Z0 plane is a plane perpendicular to the Y0 plane and parallel to the ground, and the X0 plane is a plane perpendicular to both the Y0 plane and the Z0 plane.

[0053] In this article, for example, the distance L2 between the front edge and the rear edge of the vehicle door can be the distance measured along the X direction by the projections of the front edge and the rear edge of the vehicle door on the Y0 plane respectively; similarly, the distance L1 between the rear edge of the vehicle door 2 and the center point of the wheel opening 121 can be the distance measured along the X direction by the projections of the rear edge of the vehicle door 2 and the wheel opening 121 on the Y0 plane respectively.

[0054] The driving body 1 refers to an external structure for forming the driving cab 10 . The driving body 1 includes a front portion 11 and side portions 12 . The side portions 12 refer to portions located at the left and right sides of the driving cab 10 .

[0055] A wheel opening 121 is provided on the side 12 of the driving body 1 close to the chassis 100 . The shape of the wheel opening 121 matches at least part of the contour of the front wheel 20 . The wheel opening 121 is used to cooperate with the front wheel 20 and is concentrically arranged with the front wheel 20 .

[0056] The side portion 12 is provided with a door opening 122 for the driver to get on and off the vehicle, and the door 2 can be rotatably connected to the side portion 12 and cover the door opening 122, or the door 2 can also be slidably connected to the side portion 12 and cover the door opening 122. The door 2 may be a special-shaped structure, the front edge of the door 2 refers to the frontmost edge along the X direction, and the rear edge of the door 2 refers to the rearmost edge along the X direction.

[0057] Typically, the front edge of the door 2 corresponds to the front edge of the door opening 122 of the door 2, and the pivot point of the door 2 is typically disposed at the front edge of the door 2 so that the door opening 122 of the door 2 can be fully opened and utilized to improve the convenience of the driver getting on and off the vehicle.

[0058] In the existing human-machine design of the cab 10, attention is usually paid only to the driving comfort of the driver (or passenger) in a sitting state in the cab (such as human-machine operation functions, driver's field of vision, etc.) and the impact of the door opening on the convenience of the driver (or passenger) getting on and off the vehicle. The front wheel position is rarely used as a parameter for evaluating the convenience of the driver (or passenger) getting on and off the vehicle, and this parameter is particularly important for the cab 10 with limited cab length or layout space.

[0059] Taking light trucks as an example, regulations require that the total length of this type of vehicle shall not exceed 6m, which means that the shorter the cab length, the longer the cargo box length, and the cargo box length directly affects the truck's cargo capacity and product competitiveness.

[0060] Therefore, for a cab with limited cab length or limited layout space, the inventor needs to spend a lot of effort to study how to set up the cab human-machine configuration to simultaneously meet driving comfort and ease of getting on and off the vehicle. However, the present application can conveniently and effectively solve the above problem by incorporating the front wheel position into the evaluation system of the driver's (or passenger's) ease of getting on and off the vehicle, and this is particularly important for the design of a cab with limited cab length or layout space.

[0061] Furthermore, incorporating the position of the front wheel 20 into the evaluation index of the convenience of the driver (or passenger) getting on and off the vehicle is not only particularly important for a cab 10 with limited cab 10 length or layout space, but is also very important for a streamlined cab with a low wind resistance design.

[0062] Taking light trucks as an example, to a certain extent, the smaller the wind resistance means the more inclined the front windshield of the cab 10 is. Therefore, in order to ensure that the driver does not collide with the excessively inclined windshield and affect driving comfort, the driver's position needs to be moved back as a whole. The overall backward movement of the driver's position will directly lead to an increase in the length of the cab, which is not conducive to improving cargo capacity and the competitiveness of the entire vehicle product.

[0063] Therefore, for a cab with limited cab 10 length or limited layout space, the inventor needs to put in a lot of work to study how to set up the cab 10 human-machine layout to take into account driving comfort, ease of getting on and off the vehicle, and low wind resistance performance, so as to further increase the cargo capacity of the truck and reduce energy consumption, thereby improving the competitiveness of the entire vehicle product.

[0064] Based on this, the cab 10 in the embodiment of the present application, by incorporating the parameter of the position of the front wheel 20 into the evaluation system of the convenience of getting on and off the vehicle, more specifically, positioning the door 2 according to the position of the wheel center of the front wheel 20, can obtain a better solution for the human-machine layout of the cab that can meet the convenience of getting on and off the vehicle for the driver. This is particularly important for trucks, especially light trucks. It is also a necessary condition for a cab with limited cab length and / or low wind resistance.

[0065] In one embodiment of the present application, the front edge and the rear edge of the door 2 are respectively located on both sides of the center point of the wheel opening 121, that is, the front edge of the door 2 is located on the front side of the center point of the wheel opening 121 along the X direction, and the rear edge of the door 2 is located on the rear side of the center point of the wheel opening 121 along the X direction, and the distance between the rear edge and the center point of the wheel opening 121 is greater than the distance between the front edge and the center point of the wheel opening 121, so that the driver's sitting position can be moved backward when the length of the cab 10 is constant, and the driver is allowed to get on the vehicle from the rear side of the front wheel 20, thereby improving the convenience of getting on and off the vehicle while fully ensuring the driver's field of vision and operating space.

[0066] Furthermore, by making the ratio a of the distance L1 between the rear edge of the door 2 and the center point of the wheel opening 121 and the distance L2 between the front edge and the rear edge satisfy: 0.65≤a≤0.95, on the one hand, sufficient space can be left at the front portion 11, so that the front portion 11 of the cab 10 forms a streamlined structure, and a low wind resistance cab 10 design can be realized, thereby reducing the wind resistance coefficient, reducing energy consumption, and improving the cruising range of the cab 10 while ensuring getting on and off the vehicle. When the cab 10 is a fuel vehicle, the fuel economy of the cab 10 can be improved, and when the cab 10 is an electric vehicle or a hybrid vehicle, the power consumption of the cab 10 can be reduced. On the other hand, by setting L1 relatively large, a relatively ample boarding space can be provided for the driver, which is conducive to improving the convenience of getting on and off the vehicle.

[0067] It is understandable that the vehicle door 2 can determine the driver's sitting posture or overall position in the cab 10. By designing the structure of the cab 10 based on the position of the vehicle door 2, other structural parts in the cab 10 can be adjusted in conjunction with the vehicle door 2 to achieve an overall design of the cab 10.

[0068] For the cab 10 in the above embodiment, if the ratio a of L1 to L2 is less than 0.65, the door 2 is more forward than the wheel center of the front wheel 20, resulting in a smaller space for getting on and off the vehicle behind the front wheel 20, affecting the convenience of getting on and off the vehicle. In addition, the door 2 is more forward than the wheel center of the front wheel 20, which will also make it difficult for the front part 11 of the cab 10 to form a streamlined structure, and the effect of reducing the wind resistance of the cab 10 is not obvious. If the ratio a of L1 to L2 is greater than 0.95, the door 2 is more backward than the wheel center of the front wheel 20. In the case of a certain length of the light truck, the length occupied by the cab 10 is too large, affecting the cargo box space, and it is difficult to meet the transportation needs of light trucks.

[0069] Therefore, by making the ratio a of L1 and L2 in the embodiment of the present application satisfy: 0.65≤a≤0.95, it is possible to reduce the size of the cab 10 and / or reduce energy consumption while ensuring the convenience of getting on and off the vehicle.

[0070] In some optional embodiments, in the X direction, the ratio a of the distance L1 between the rear edge of the door 2 and the center point of the wheel opening 121 to the distance L2 between the front edge and the rear edge satisfies: 0.75≤a≤0.85. For example, a may be 0.77, 0.795 or 0.81, in other words, L1 / L2=0.77, L1 / L2=0.795 or L1 / L2=0.81, and the ratio of the distance between the front edge of the door 2 of the cab 10 and the center point of the wheel opening 121 to the distance between the front edge and the rear edge of the door 2 is moderate, which can meet the convenience requirements of the driver to get on and off the vehicle, and has the possibility of realizing the technology of reducing the size of the cab 10 and enabling the front part 11 of the cab 10 to form a streamlined structure, so as to take into account the convenience of getting on and off the vehicle, shortening the length of the cab and reducing the wind resistance of the cab 10.

[0071] In some optional embodiments, the distance L1 between the rear edge of the vehicle door 2 and the center point of the wheel opening 121 satisfies a range of 630 mm ≤ L1 ≤ 1030 mm.

[0072] A wheel cover area S1 is formed between the front edge of the vehicle door 2 and the rear edge of the wheel opening 121 , and a step area S2 is formed between the rear edge of the vehicle door 2 and the rear edge of the wheel opening 121 . The step area S2 is used for the driver to get on and off the vehicle.

[0073] Research and development found that the greater the distance between the rear edge of the door 2 and the center point of the wheel opening 121, the more convenient it is for the driver to get on and off the vehicle, but it will also cause the overall length of the cab 10 to increase, which directly affects the cargo capacity; on the contrary, the smaller the distance between the rear edge of the door 2 and the center point of the wheel opening 121, the shorter the length of the cab 10 will be when the length of the entire vehicle is constant, and the larger the cargo box can be designed, but the less convenient it is for the driver to get on and off the vehicle, and at the same time, there is less space left for wind resistance design, making it difficult to achieve a low wind resistance design.

[0074] In the present application, by setting the distance L1 between the rear edge of the door 2 and the center point of the wheel opening 121 to 630mm≤L1≤1030mm, on the one hand, a more suitable step area S2 space can be met to improve the convenience of the driver getting on and off the vehicle, and on the other hand, the length of the cab 10 can be controlled within a reasonable range, so that the cargo box space can be relatively maximized when the length of the entire vehicle is constant.

[0075] In some optional embodiments, the distance L1 between the rear edge of the door 2 and the center of the wheel opening 121 satisfies 680mm≤L1≤980mm, further optionally, the distance L1 between the rear edge of the door 2 and the center of the wheel opening 121 satisfies 780mm≤L1≤930mm, further optionally, the distance L1 between the rear edge of the door 2 and the center of the wheel opening 121 satisfies 780mm≤L1≤880mm. In these embodiments, not only can the convenience of getting on and off the vehicle be met, but also sufficient design space is reserved for shortening the size of the cab 10 and designing a streamlined cab, so as to take into account the convenience of getting on and off the vehicle, shorten the length of the cab, and reduce the wind resistance of the cab 10, thereby improving the design compatibility.

[0076] In a specific embodiment of the present application, L1=833mm, L2=1048mm, a=L1 / L2=0.795, and along the X direction, the distances between the front edge and the rear edge of the door 2 and the center point of the wheel opening 121 can meet the space requirements of the cab 10 and the requirements of getting on and off the vehicle, and at the same time, the front part 11 of the cab 10 can also form a streamlined structure, thereby reducing the wind resistance of the cab 10 and reducing energy consumption.

[0077] It is understandable that the front edge and the rear edge of the door 2 will also affect other parts of the structure of the cab 10. Under the condition that the ratio a of L1 to L2 satisfies the preset range, the rear edge position of the door 2 determines the front edge position of the door 2, and for the front edge of the door 2, under the condition that the size of the cab 10 along the X direction is constant, the position of the front edge of the door 2 will affect the setting space of the front part 11 structure of the cab 10, so the front part 11 structure of the cab 10 can be adjusted accordingly to improve the wind resistance performance of the cab 10.

[0078] Taking the vehicle door 2 rotatably connected to the side portion 12 as an example, the cab 10 needs to be provided with a door hinge so that the vehicle door 2 is rotatably connected to the side portion 12 of the driving compartment 1 through the door hinge, that is, along the X direction, the front edge of the vehicle door 2 is related to the position of the door hinge.

[0079] It is understandable that sufficient space needs to be reserved between the front edge of the door 2 and the headlight for arranging the headlight-related components (e.g., headlight, hinge, front panel, guard plate, etc.). The smaller the distance between the front edge of the door 2 and the headlight, the better it is for shortening the overall length of the cab, but it is disadvantageous for arranging the headlight-related components; on the contrary, the larger the distance between the front edge of the door 2 and the headlight, the better it is for arranging the headlight-related components, but it is disadvantageous for shortening the overall length of the cab.

[0080] In one embodiment, the installation space of the vehicle light needs to be at least 450 mm.

[0081] In addition, by setting 630mm≤L1≤1030mm, and the ratio a of L1 to L2 satisfies: 0.65≤a≤0.95, the front edge position of the door 2 can be controlled, so that along the X direction, the front edge of the door 2 will not move too far forward relative to the center point of the wheel opening 121, so as to ensure that there is sufficient clearance between the door hinge and the headlight to avoid interference between the two. For the rear edge of the door 2, when the size of the cab 10 along the X direction is constant, the position of the rear edge of the door 2 will affect the installation space of the rear parts of the cab 10, so the structure of the rear parts of the cab 10 can be adjusted accordingly to ensure the reliability of the cab 10.

[0082] See also Figures 1 to 3 In some optional embodiments, the side portion 12 includes a pillar 123. In the X direction, the pillar 123 is located at the side of the rear edge of the door 2 away from the front portion 11. The size of the pillar 123 is L3, and the value range of L3 satisfies: 60mm≤L3≤260mm. The size L3 of the pillar 123 can be the size of the projection of the pillar on the Y0 plane measured along the X direction.

[0083] The pillar 123 is located at the rear side of the rear edge of the door 2 and is used to bear the pressure from the top and rear of the cab, and can disperse the impact force and protect the driver when the cab 10 collides. The larger the size of the pillar 123 along the X direction, the stronger the cab 10 is.

[0084] Since the position of the rear edge of the door 2 will also affect the size of the pillar 123 when the size of the cab 10 along the X direction is constant, the size L3 of the pillar 123 is set to satisfy the range of 60 mm ≤ L3 ≤ 260 mm. This ensures that the strength of the pillar 123 is ensured while minimizing the space occupied by the pillar 123. While meeting the strength requirements of the cab 10, the space of the step area S2 is increased to facilitate the driver to get on and off the vehicle. At the same time, the weight of the pillar 123 can be reduced, thereby improving the reliability of the cab 10.

[0085] Further optionally, in the X direction, the value range of the dimension L3 of the column 123 satisfies: 100mm≤L3≤220mm. In a specific embodiment of the present application, L3=160mm, which can make it easier to balance the rear edge position of the door 2 and the dimension of the column 123 when the dimension of the cab 10 along the X direction is constant, so as to make it easier for the driver to get on and off the vehicle while meeting the strength requirements of the cab 10, and also allow the front part 11 of the cab 10 to be designed as a streamlined structure, thereby reducing the wind resistance of the cab 10 and reducing energy consumption.

[0086] In some optional embodiments, in the X direction, the maximum dimension of the driving compartment 1 is L4, and the value range of L4 satisfies: 1550 mm≤L4≤1950 mm.

[0087] The maximum dimension of the cab 1 along the X direction refers to the distance from the front end of the cab 1 to the rear end of the cab 1 along the X direction, and can also be the dimension of the projection of the cab 1 on the Y0 plane along the X direction. The larger the maximum dimension L4 of the cab 1, the more space there is for man-machine arrangement in the cab, but the size of the cargo box will be reduced. On the contrary, the smaller the maximum dimension L4 of the cab 1, the larger the size reserved for the cargo box, but the more limited the space there is for man-machine arrangement in the cab.

[0088] Therefore, in this application, by limiting the maximum size L4 of the cab body 1 to between 1550mm and 1950mm, it is possible to meet driving comfort and avoid the size reserved for the cargo box being too small, so as to increase the cargo capacity of the cab-related vehicle products (for example, light trucks).

[0089] In some optional embodiments, the maximum dimension L4 of the driving compartment 1 satisfies a range of 1600 mm ≤ L4 ≤ 1900 mm. Further optionally, the maximum dimension L4 of the driving compartment 1 satisfies a range of 1650 mm ≤ L4 ≤ 1850 mm. Further optionally, the maximum dimension L4 of the driving compartment 1 satisfies a range of 1700 mm ≤ L4 ≤ 1800 mm.

[0090] In a specific embodiment of the present application, L4=1750mm. A cab with this size not only has a cab human-machine layout space that can meet driving comfort, but also can reserve sufficient design space for the convenience of the driver getting on and off the vehicle, shortening the size of the cab 10, and designing a streamlined cab. This can take into account the convenience of getting on and off the vehicle, shorten the length of the cab, and reduce the wind resistance of the cab 10, thereby taking into account both driving needs and increasing cargo capacity.

[0091] See also Figures 1 to 3 In some optional embodiments, in the X direction, the ratio of the length dimension L8 of the front overhang to the maximum dimension L4 of the cab body 1 satisfies: 0.38≤L8 / L4≤0.48. Wherein, the length dimension of the front overhang is: the distance between the front end of the front part 11 and the center point of the wheel mouth 121 in the X direction. For example, the length dimension L8 of the front overhang can be the dimension measured along the X direction by the projection of the front end of the front part 11 of the cab and the wheel center (or the center of the wheel mouth) on the Y0 plane. It can be understood that the smaller the front overhang dimension, the smaller the front cabin layout space, but the better the passability of the corresponding vehicle, the larger the man-machine space left for the cab 10, and the more conducive to improving driving comfort and convenience of getting on and off the vehicle; on the contrary, the larger the front overhang dimension, the worse the passability of the corresponding vehicle, and the smaller the man-machine space left for the cab 10, which is not conducive to the driver getting on and off the vehicle, but it is beneficial to the front cabin layout space.

[0092] Therefore, the cab 10 in the embodiment of the present application can reserve sufficient design space for the convenience of the driver getting on and off the vehicle and designing a streamlined cab while satisfying the front cabin layout space and ensuring that the vehicle meets the passability requirements by satisfying the ratio of the length dimension L8 of the front overhang in the X direction to the maximum dimension L4 of the cab body 1: 0.38≤L8 / L4≤0.48.

[0093] Further optionally, in the X direction, the ratio of the length dimension L8 of the front overhang to the maximum dimension L4 of the driving compartment 1 satisfies: 0.40≤L8 / L4≤0.45. In the X direction, the distance between the front end of the front portion 11 and the center point of the wheel opening 121 (i.e., the dimension of the front overhang) L8 satisfies: 640mm≤L8≤840mm.

[0094] In a specific embodiment of the present application, L8 = 700 mm, 720 mm, 740 mm or 760 mm. For example, L8 = 740 mm, L8 / L4 = 0.42, and the above setting can simultaneously meet the requirements of front cabin layout, vehicle passability, cargo loading, and the convenience of the driver getting on and off the vehicle.

[0095] It is understandable that, for a chassis with limited layout space, on the basis of adjusting the position of the front wheel 20 relative to the driving compartment 1 , the position of the front wheel 20 relative to the chassis 100 is also adjusted accordingly.

[0096] See also Figures 1 to 4 , Figure 4 A top view of a chassis 100 provided in some embodiments of the present application is shown.

[0097] In some optional embodiments, the chassis 100 further includes a rear wheel 30, which is disposed on the frame and spaced apart from the front wheel 20 along the X direction. The ratio of the length dimension L8 of the front overhang to the wheelbase L14 satisfies 0.17≤L8 / L14≤0.25, and the wheelbase L14 is the distance between the center point of the front wheel 20 and the center point of the rear wheel 30 along the X direction.

[0098] The wheelbase L14 may be a distance measured along the X direction between the projections of the center points of the front wheel 20 and the center points of the rear wheel 30 on the Y0 plane.

[0099] Under the condition that the size of the chassis 100 along the X direction is constant, by adjusting the position of the front wheel 20, the length dimension L8 of the front overhang of the cab 10 and the wheelbase dimension L14 of the chassis 100 can be redistributed, that is, the wheelbase dimension L14 of the chassis 100 can be increased on the basis of shortening the length dimension L8 of the front overhang of the cab 10.

[0100] Among them, a power battery is arranged between the front wheel 20 and the rear wheel 30 of the chassis 100. Due to the limitation of the wheelbase L14 and the suspension form, the available space for the power battery is limited. Therefore, in the embodiment of the present application, by moving the front wheel 20 forward, the chassis 100 can also increase the wheelbase size L14 of the chassis 100 under the condition that the size of the chassis 100 along the X direction is constant, so as to increase the space available for the power battery, thereby increasing the power of the power battery that can be arranged in the chassis 100, making it easier to meet the large power demand and improve the product competitiveness.

[0101] In some optional embodiments, the value range of the wheelbase L14 satisfies 3360mm≤L14≤4000mm.

[0102] The specific value of the wheelbase L14 is related to the length dimension L8 of the front overhang and the total length of the chassis along the X direction. By making the wheelbase L14 ≥ 3360 mm, the space available for the power battery can be increased to better meet the large power demand. By making the wheelbase L14 ≤ 4000 mm, space can be reserved for the installation of other functional systems on the chassis 100 to meet the functional requirements of the chassis 100 and improve the performance of the chassis 100.

[0103] In a specific embodiment of the present application, L14=3450mm, 3750mm or 3950mm. When L14=3750mm, the power battery capacity can be expanded from 100kWh to 120kWh.

[0104] As mentioned above, incorporating the position of the front wheel 20 into the evaluation index of the convenience of the driver (or passenger) getting on and off the vehicle is particularly important for a cab with limited cab length or layout space. In addition to being related to the door 2, the driver's sitting posture is also determined to a certain extent by at least one of the position of the brake pedal 3, the position of the driver's seat 4, and the position of the steering wheel 51. By positioning and designing the brake pedal 3, the driver's seat 4, and / or the steering wheel 51 according to the position of the wheel center of the front wheel 20, a better solution for the human-machine layout of the cab that can meet the convenience of the driver getting on and off the vehicle can be effectively obtained. This is particularly important for trucks, especially light trucks, and is also a necessary condition for a cab with limited cab length and / or low wind resistance.

[0105] See also Figures 1 to 5 , Figure 5 The figure shows a side view of the cab 10 provided in some other embodiments of the present application. In some optional embodiments, the cab 10 further includes a brake pedal 3, which is arranged in the cockpit. When the brake pedal 3 is in a non-braking state, the center point of the brake pedal 3 is located on the side of the center point of the wheel opening 121 facing the front part 11 and the distance between the center point of the wheel opening 121 and the center point of the wheel opening 121 is L9, and the value range of L9 satisfies: 10mm≤L9≤410mm. Among them, L9 can be the size of the projection of the center point of the brake pedal 3 on the Y0 plane and the projection of the center point of the wheel opening 121 on the Y0 plane measured along the X direction.

[0106] When the brake pedal 3 is positioned and designed at the center of the front wheel 20, compared to the existing cab 10 of a light truck, by moving the brake pedal 3 backward relative to the center of the front wheel 20, sufficient space can be left at the front 11 of the cab 10, so that the front 11 of the cab 10 forms a streamlined structure, realizing a low wind resistance cab 10 design, thereby being able to reduce the drag coefficient, reduce energy consumption, and improve the cruising range of the cab 10 while ensuring getting on and off the vehicle.

[0107] It can be understood that the greater the distance L9 between the center point of the brake pedal 3 and the center point of the wheel opening 121, the closer the driver's seat position is to the front wheel 20. At this time, the size of the step area S2S2 for the driver to get on and off the vehicle will be reduced, which has an adverse effect on the convenience of the driver getting on and off the vehicle; on the contrary, the smaller the distance L9 between the center point of the brake pedal 3 and the center point of the wheel opening 121, the farther the driver's seat position will be from the front wheel 20, and the size of the step area S2 for the driver to get on and off the vehicle will increase, which is beneficial to the convenience of the driver getting on and off the vehicle, but at the same time it will also increase the overall length of the cab, which is not conducive to increasing the cargo capacity of the entire vehicle.

[0108] Specifically, when the brake pedal 3 is in a non-braking state, the center point of the brake pedal 3 is located at the side of the center point of the wheel opening 121 facing the front part 11 and the distance L9 from the center point of the wheel opening 121 is ≤ 410 mm, that is, the driving position can be moved back a sufficient distance to increase the size of the step area S2 along the X direction, which is convenient for the driver to get on and off the vehicle. In addition, by making the center point of the brake pedal 3 located at the side of the center point of the wheel opening 121 facing the front part 11 and the distance L9 from the center point of the wheel opening 121 is ≥ 10 mm, the driving position can be prevented from moving back too much, thereby reducing the cockpit space, and increasing the cargo box space when the size of the light truck is constant, so as to improve the cargo carrying performance of the light truck.

[0109] In some optional embodiments, when the brake pedal 3 is in a non-braking state, the distance L9 between the center point of the wheel opening 121 and the center point of the brake pedal 3 satisfies a range of 60mm≤L9≤360mm. Further optionally, the distance L9 between the center point of the wheel opening 121 and the center point of the brake pedal 3 satisfies a range of 110mm≤L9≤310mm. The distance L9 between the center point of the wheel opening 121 and the center point of the brake pedal 3 satisfies a range of 110mm≤L9≤310mm.

[0110] In a specific embodiment of the present application, L9=180mm, 210mm or 250mm, which can reserve sufficient design space for the front portion 11 to design a streamlined cab, so that the front portion 11 of the cab 10 forms a streamlined structure, realizing a low wind resistance cab 10 design. In addition, while reducing the driving cavity space, it can also improve the convenience of getting on and off the vehicle and improve the performance of the cab 10.

[0111] See also Figures 1 to 6 , Figure 6A side view of a cab 10 provided by some other embodiments of the present application is shown. In some optional embodiments, the cab 10 also includes a driving seat 4, which is arranged in the cockpit and connected to the driving body 1. Along the X direction, the center point of the driving seat 4 is located on the side of the center point of the wheel opening 121 away from the front part 11 and the distance between the center point of the wheel opening 121 and the center point of the wheel opening 121 is L10. The distance between the center point of the driving seat 4 and the center point of the wheel opening 121 is L10, and the value range of L10 satisfies 365mm≤L10≤765mm. Among them, L10 can be the size measured along the X direction of the projection of the center point of the driving seat 4 on the Y0 plane and the projection of the center point of the wheel opening 121 on the Y0 plane.

[0112] When the driver's seat 4 is positioned and designed at the center of the front wheel 20, compared to the existing cab 10 of a light truck, by moving the driver's seat 4 backward, sufficient space can be left at the front 11 of the cab 10, so that the front 11 of the cab 10 forms a streamlined structure, realizing a low wind resistance cab 10 design, thereby being able to reduce the drag coefficient, reduce energy consumption, and improve the cruising range of the cab 10 while ensuring getting on and off the vehicle.

[0113] Specifically, the center point of the driver's seat 4 is located on the side of the center point of the wheel opening 121 away from the front part 11 and the distance L10 from the center point of the wheel opening 121 is ≥365 mm, so that the driving position can be moved backward, so as to form a streamlined structure at the front part 11, and the size of the step area S2 along the X direction is increased, so as to facilitate the driver to get on and off the vehicle. In addition, by making the distance L10 between the center point of the driver's seat 4 and the center point of the wheel opening 121 ≤765 mm, the driving position can be prevented from being moved too far backward, so that the cockpit space can be reduced, and the cargo box space can be increased when the size of the light truck is constant, so as to improve the cargo carrying performance of the light truck.

[0114] In some optional embodiments, the value range of L10 satisfies 415mm≤L10≤715mm. Further optionally, the value range of the distance L10 between the center point of the driver's seat 4 and the center point of the wheel opening 121 satisfies 465mm≤L10≤665mm. Further optionally, the value range of the distance L10 between the center point of the driver's seat 4 and the center point of the wheel opening 121 satisfies 515mm≤L10≤615mm.

[0115] In a specific embodiment of the present application, L10=525mm, 565mm or 605mm, which can leave a moderate space at the front 11, so that the front 11 of the cab 10 forms a streamlined structure, and realizes a low wind resistance cab 10 design. In addition, it can also improve the convenience of getting on and off the vehicle while reducing the driving cavity space, and improve the performance of the cab 10.

[0116] See also Figures 1 to 7 , Figure 7 The side view of the cab 10 provided by some other embodiments of the present application is shown. In some optional embodiments, the cab 10 further includes a steering mechanism 5, the steering mechanism 5 includes a steering wheel 51 arranged in the cockpit, the distance between the center point of the steering wheel 51 and the center point of the wheel opening 121 is L11, and the value range of L11 satisfies: -65mm≤L11≤335mm. Among them, L11 can be the size of the projection of the center point of the steering wheel 51 on the Y0 plane and the projection of the center point of the wheel opening 121 on the Y0 plane measured along the X direction.

[0117] When the center point of the steering wheel 51 is located at a side where the center point of the wheel opening 121 is close to the front portion 11 , L11 takes a negative value; when the center point of the steering wheel 51 is located at a side where the center point of the wheel opening 121 is far from the front portion 11 , L11 takes a positive value.

[0118] When the steering wheel 51 is positioned and designed at the center of the front wheel 20, compared with the existing cab 10 of a light truck, by moving the steering wheel 51 backward, sufficient space can be left at the front 11 of the cab 10, so that the front 11 of the cab 10 forms a streamlined structure, realizing a low wind resistance cab 10 design, thereby being able to reduce the wind resistance coefficient while ensuring getting on and off the vehicle, reduce energy consumption, and improve the cruising range of the cab 10.

[0119] Specifically, the distance L11 between the center point of the steering wheel 51 and the center point of the wheel opening 121 is ≥-65mm, so that the driving position can be moved backward, so as to form a streamlined structure at the front part 11, and the size of the step area S2 along the X direction is increased, so as to facilitate the driver to get on and off the vehicle. In addition, by making the distance L11 between the center point of the steering wheel 51 and the center point of the wheel opening 121 ≤335mm, the driving position can be prevented from being moved too far backward, so that the cockpit space can be reduced, and the cargo box space can be increased when the size of the light truck is constant, so as to improve the cargo carrying performance of the light truck.

[0120] In some optional embodiments, the distance L11 between the center point of the steering wheel 51 and the center point of the wheel opening 121 satisfies: -15mm≤L11≤285mm. Further optionally, the distance L11 between the center point of the steering wheel 51 and the center point of the wheel opening 121 satisfies: 35mm≤L11≤235mm. Further optionally, the distance L11 between the center point of the steering wheel 51 and the center point of the wheel opening 121 satisfies: 85mm≤L11≤185mm.

[0121] In a specific embodiment of the present application, L11=105mm, 135mm or 155mm, which can leave a moderate space at the front 11, so that the front 11 of the cab 10 forms a streamlined structure, and realizes a low wind resistance cab 10 design. In addition, it can also improve the convenience of getting on and off the vehicle while reducing the driving cavity space, and improve the performance of the cab 10.

[0122] See also Figure 8 , Figure 8 A top view of a cab 10 provided in some embodiments of the present application is shown.

[0123] In some optional embodiments, in the Y direction, the maximum dimension of the driving compartment 1 is L7, and the value range of L7 satisfies: 2120mm≤L7≤2220mm.

[0124] The maximum size of the driving body 1 along the Y direction refers to the distance from the leftmost end to the rightmost end of the driving body 1 along the Y direction, excluding the rearview mirror and blind spot mirror of the cab 10, that is, the distance between the two side portions 12 of the driving body 1 along the Y direction. Among them, the maximum size of the driving body 1 along the Y direction is related to the size of the cargo box along the Y direction, and the maximum size of the driving body 1 along the Y direction can be selected to be equal to the size of the cargo box along the Y direction.

[0125] In a specific embodiment of the present application, the dimension of the cargo box along the Y direction is set to 2170 mm, so the maximum dimension L7 of the driving compartment 1 is 2170 mm, so that the surface of the side 12 of the driving compartment 1 is flush with the cargo box to reduce the drag coefficient.

[0126] See also Figures 1 to 11 , Fig. 9 The structure diagram of the cab 10 provided in some embodiments of the present application is shown. Fig.10 FIG. 1 shows a side view of a cab 10 provided in some other embodiments of the present application. Fig.11 A schematic diagram of measuring the tilt angle provided by some embodiments of the present application is shown.

[0127] In some optional embodiments, the front portion 11 includes a windshield portion 111 , and the windshield portion 111 is inclined relative to a vertical plane and has an inclination angle of α1 , wherein a value range of α1 satisfies: 15°≤α1≤25°.

[0128] The inclination angle α1 of the windshield portion 111 relative to the vertical plane can be characterized by the angle between the inclination line of the windshield portion 111 and the vertical line. The inclination line of the windshield portion 111 refers to the line connecting the first intersection point and the second intersection point, the first intersection point is the middle point of the lower edge of the windshield portion 111 along the Y direction, and the second intersection point is the intersection point formed by the windshield portion 111 and the arc of 457 mm made from the first intersection point.

[0129] It can be understood that, the larger the inclination angle α1 of the windshield portion 111 relative to the vertical plane, the smaller the positive pressure on the cab, which is beneficial to reducing the drag coefficient, but at the same time it will force the driver to move backward to avoid affecting the driving field of view, operability, etc. The backward movement of the driver's position will inevitably lead to an increase in the overall length of the cab, which is also disadvantageous for the cargo capacity of the whole vehicle; on the contrary, the smaller the inclination angle α1 of the windshield portion 111 relative to the vertical plane, the more conducive it is to human-machine arrangement and reduce the length of the cab, but at this time the positive pressure on the cab will increase, thereby increasing wind resistance, which is disadvantageous for the cruising range of the whole vehicle.

[0130] In the present application, by making the inclination angle α1 of the windshield portion 111 relative to the vertical plane ≥ 15°, the windshield portion 111 can be tilted at a sufficient angle relative to the vertical plane to reduce the positive pressure area, reduce the drag coefficient, and reduce the energy consumption of the cab 10. By making the inclination angle α1 of the windshield portion 111 relative to the vertical plane ≤ 25°, the windshield portion 111 can be tilted not too much relative to the vertical plane, so that the internal space of the cockpit can meet the requirements, thereby improving the driver's comfort and the convenience of getting on and off the vehicle.

[0131] In a specific embodiment of the present application, α1 = 18°, 20° or 23°, so as to take into account the requirements of reducing wind resistance and shrinking the cockpit space, thereby improving the overall product competitiveness of the cab 10.

[0132] In some optional embodiments, the front portion 11 further includes a first portion 112 and a second portion 113 arranged in the Z direction, and the second portion 113 is located on a side of the first portion 112 facing the windshield portion 111 and is connected to the windshield portion 111. Along the Z direction, the second portion 113 is inclined relative to the vertical plane and the inclination angle is α2, and the difference between the inclination angle α1 of the windshield portion 111 relative to the vertical plane and the inclination angle α2 of the second portion 113 relative to the vertical plane satisfies: 0°≤α1-α2≤5°.

[0133] The first section 112 may be a region where a front bumper is disposed, and the second section 113 may be a region where a front panel is disposed.

[0134] Similar to the windshield portion 111, the inclination angle α2 of the second section 113 relative to the vertical plane can be characterized by the angle between the inclination line of the second section 113 and the vertical line. The inclination line of the second section 113 refers to the line connecting the third intersection point and the fourth intersection point, the third intersection point is the middle point of the lower edge of the second section 113 along the Y direction, and the fourth intersection point is the intersection point formed by the arc of 457 mm from the third intersection point and the second section 113.

[0135] As the difference between the inclination angle α1 of the windshield portion 111 relative to the vertical plane and the inclination angle α2 of the second section 113 relative to the vertical plane becomes smaller, the inclination angles of the windshield portion 111 and the second section 113, that is, the windshield angles are closer, and the drag coefficient is smaller. Therefore, by making 0°≤α1-α2≤5°, the energy consumption of the cab 10 can be better reduced, and the cruising range and driving performance can be improved.

[0136] It can be understood that since the cab 10 also includes functional structures such as a steering wheel 51 and a brake pedal 3, which need to be connected to the second section 113 of the driving compartment 1, the inclination angle α2 of the second section 113 relative to the vertical plane cannot be set too large, that is, the specific angle of the inclination angle α2 of the second section 113 relative to the vertical plane can be adjusted according to the inclination angle α1 of the windshield portion 111 relative to the vertical plane and the structure of the cab 10, so as to take into account the setting requirements of the windshield and the internal functional structure of the cab 10.

[0137] See also Figures 1 to 12 , Fig.12 A simplified diagram showing the inclination angle of the first section 112 provided in some embodiments of the present application.

[0138] In some optional embodiments, the inclination angle of the first section 112 relative to the vertical plane is smaller than the inclination angle of the second section 113 relative to the vertical plane, and the inclination angle of the first section 112 relative to the vertical plane is α3, 0°≤α3≤10°.

[0139] It can be understood that the inclination angle of the first section 112 has an impact on both wind resistance and the internal space of the cab. For example, the larger the inclination angle of the first section 112, the smaller the front windward area of ​​the cab, which is beneficial for reducing wind resistance, but has a limiting effect on the space of the human-machine arrangement in the cab (for example, the brake pedal 3, the steering wheel 51 and other components). In one embodiment of the present application, when the maximum size of the cab 10 along the X direction is constant, by reducing the inclination angle α3 of the first section 112 relative to the vertical plane, the second section 113 and the windshield 111 can be moved forward along the X direction, thereby increasing the internal space of the cab, making it easier to arrange the functional components in the cab 10, and improving the driver's comfort and convenience of getting on and off the vehicle.

[0140] In a specific embodiment of the present application, α3 = 0° or 5°, which can reduce wind resistance to a certain extent, avoid excessive arrangement of components in the cab, and facilitate the setting of the front bumper, thereby improving the anti-collision capability of the cab 10.

[0141] In some optional embodiments, the maximum dimension of the first section 112 along the Z direction is L5, and the value range of L5 satisfies 320 mm ≤ L5 ≤ 420 mm. The dimension L5 of the first section 112 along the Z direction may be the dimension of the projection of the first section 112 on the Y0 plane measured along the Z direction.

[0142] Since the first section 112 is usually formed by the front bumper, the size of the first section 112 along the Z direction can be represented by the distance from the lowest end of the front bumper along the Z direction to the fifth intersection, and the fifth intersection is the uppermost end of the middle position of the front bumper along the Y direction.

[0143] By making the maximum dimension L5 of the first section 112 along the Z direction ≥ 320 mm, the aesthetic appearance of the cab 10 and the height of the license plate that can be set can be improved. Since the inclination angle α3 of the first section 112 relative to the vertical plane is smaller than the inclination angle α2 of the second section 113 relative to the vertical plane, by making the maximum dimension L5 of the first section 112 along the Z direction ≤ 420 mm, the height of the first section 112 along the Z direction can be reduced, so as to reduce the area of ​​the positive pressure zone of the front part 11 of the cab 10 and reduce the drag coefficient.

[0144] In a specific embodiment of the present application, L5=340 mm, 370 mm or 400 mm, so as to take into account the requirements of reducing the wind resistance coefficient and setting up the internal functional structure of the cab 10.

[0145] In some optional embodiments, along the Z direction, the distance between the lowermost edge of the first section 112 and the lower edge of the front wheel 20 is L6, and the value range of L6 satisfies 220 mm≤L6≤320 mm.

[0146] The lower edge of the front wheel 20 is the ground line when the cab 10 is in an unloaded state, so the distance between the lower edge of the first section 112 and the lower edge of the front wheel 20 is the distance from the lower edge of the front bumper to the ground line along the Z direction.

[0147] By making the distance L6 between the lowest edge of the first section 112 and the lower edge of the front wheel 20 ≥ 220 mm, the ground clearance of the front bumper along the Z direction can be increased, reducing the risk of collision between the cab 10 and the ground, so that the cab 10 can travel on various road conditions. In addition, by making the distance L6 between the lowest edge of the first section 112 and the lower edge of the front wheel 20 ≤ 320 mm, the ground clearance can be prevented from being too large, the wind resistance coefficient can be reduced, the energy consumption of the cab 10 can be reduced, and the cruising range and driving performance can be improved.

[0148] In some optional embodiments, the distance L6 between the lowermost edge of the first section 112 and the lower edge of the front wheel 20 satisfies 235 mm ≤ L6 ≤ 305 mm. Further optionally, the distance L6 between the lowermost edge of the first section 112 and the lower edge of the front wheel 20 satisfies 250 mm ≤ L6 ≤ 290 mm.

[0149] In a specific embodiment of the present application, L6=250 mm, 270 mm or 300 mm, so as to take into account both the reduction of the wind resistance coefficient and the driving requirements of the cab 10.

[0150] See also Fig.13 , Fig.13 A side view of a cab 10 provided in accordance with some further embodiments of the present application is shown.

[0151] In some optional embodiments, the front portion 11 also includes a third zone 114. Along the Z direction, the third zone 114 is located on the side of the windshield portion 111 away from the wheel opening 121 and is connected to the windshield portion 111. The third zone 114 is inclined relative to the vertical plane and the inclination angle is α4, and the value range of α4 satisfies: 25°≤α4≤40°.

[0152] The third section 114 refers to the section located above the windshield along the Z direction. The third section 114 can be integrally arranged with the first section 112 and the second section 113 and serve as a roof of the cab 10. The third section 114 can also be arranged separately and form a deflector.

[0153] Similar to the windshield portion 111, the inclination angle α4 of the third section 114 relative to the vertical plane can be characterized by the angle between the inclination line of the third section 114 and the vertical line. The inclination line of the third section 114 refers to the line connecting the sixth intersection point and the seventh intersection point, the sixth intersection point is the middle point of the lower edge of the third section 114 along the Y direction, and the seventh intersection point is the intersection point formed by the third section 114 and the arc of 457 mm made from the sixth intersection point.

[0154] By making the inclination angle α4 of the third section 114 relative to the vertical plane ≥ 25°, the third section 114 can be tilted at a sufficient angle relative to the vertical plane to reduce the drag coefficient and reduce the energy consumption of the cab 10. By making the inclination angle α4 of the third section 114 relative to the vertical plane ≤ 40°, the third section 114 can be tilted not too much relative to the vertical plane, so that the internal space of the cockpit can meet the requirements, thereby improving the driver's comfort and the convenience of getting on and off the vehicle.

[0155] In a specific embodiment of the present application, α4=30°, 33°, 35° or 38°, so as to take into account both the reduction of the wind resistance coefficient and the driving requirements of the cab 10.

[0156] See also Figures 1 to 13 The cab 10 provided in the embodiment of the present application may include a driving compartment 1 and a door 2. The driving compartment 1 includes a front portion 11 and side portions 12 located on both sides of the front portion 11. The side portions 12 are provided with wheel openings 121. The wheel openings 121 are used to cooperate with the front wheels 20 and are concentrically arranged with the front wheels 20.

[0157] In one embodiment, in the X direction, the maximum dimension of the driving compartment 1 is L4=1750 mm, and the length dimension of the front overhang is L8=740 mm.

[0158] In the X direction, the front edge and the rear edge of the door 2 are respectively located on both sides of the center point of the wheel opening 121, and in the X direction, the distance between the front edge and the rear edge is L2=1048mm, and the distance between the rear edge of the door 2 and the center point of the wheel opening 121 is L1=833mm. And / or, the cab 10 further includes a brake pedal 3, when the brake pedal 3 is in a non-braking state, along the X direction, the center point of the brake pedal 3 is located on the side of the center point of the wheel opening 121 facing the front part 11 and the distance from the center point of the wheel opening 121 is L9=210mm. And / or, the cab 10 further includes a driver's seat 4, along the X direction, the center point of the driver's seat 4 is located on the side of the center point of the wheel opening 121 away from the front part 11 and the distance from the center point of the wheel opening 121 is L10=565mm. And / or, the cab 10 further includes a steering wheel 51 , and along the X direction, the center point of the steering wheel 51 is located on the side of the center point of the wheel opening 121 close to the front portion 11 and the distance L11 from the center point of the wheel opening 121 is 135 mm.

[0159] Furthermore, the front portion 11 includes a windshield portion 111, which is inclined relative to the vertical plane and has an inclination angle α1 of 20°. The front portion 11 also includes a first zone 112, a second zone 113 and a third zone 114 arranged in the Z direction. The difference between the inclination angle α1 of the windshield portion 111 relative to the vertical plane and the inclination angle α2 of the second zone 113 relative to the vertical plane satisfies: 0°≤α1-α2≤5°, the inclination angle α3 of the first zone 112 relative to the vertical plane is 0°, and the inclination angle of the third zone 114 relative to the vertical plane is α4=33°.

[0160] Furthermore, the maximum dimension of the first section 112 along the Z direction is L5=370 mm, and the distance between the lowermost edge of the first section 112 and the lower edge of the front wheel 20 is L6=270 mm.

[0161] According to tests, under high-speed energy consumption conditions of a constant speed of 90km / h, the drag coefficient of a traditional light truck with a flat-head cab is around 0.500. In comparison, the drag coefficient of a light truck with a cab according to the above embodiment of the present application is around 0.300, which can reduce energy consumption by about 20% compared to traditional light trucks.

[0162] Therefore, the cab, chassis 100 and light truck in the embodiment of the present application have the advantages of small cockpit space, high convenience of getting on and off the vehicle, low drag coefficient and low energy consumption, which are easier to promote and apply.

[0163] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A cab, characterized in that: The cab comprises: A driving compartment body, comprising a front portion and side portions located on both sides of the front portion, wherein the side portions are provided with wheel openings, and the wheel openings are used to cooperate with the front wheels and are arranged concentrically with the front wheels; A vehicle door is connected to the side portion and is openable relative to the side portion, the vehicle door includes a front edge and a rear edge arranged along the X direction, in the X direction, the front edge and the rear edge of the vehicle door are respectively located on both sides of the center point of the wheel opening, and in the X direction, the distance between the front edge and the rear edge is L2, and the ratio a of the distance L1 between the rear edge of the vehicle door and the center point of the wheel opening to the distance L2 between the front edge and the rear edge satisfies: 0.65≤a≤0.

95.

2. The cab according to claim 1, characterized in that: In the X direction, a ratio a of a distance L1 between the rear edge of the door and the center point of the wheel opening to a distance L2 between the front edge and the rear edge satisfies: 0.75≤a≤0.

85.

3. The cab according to claim 1, characterized in that: The distance L1 between the rear edge of the door and the center point of the wheel opening has a value range of 630 mm ≤ L1 ≤ 1030 mm.

4. The cab according to claim 1, characterized in that: The distance L1 between the rear edge of the vehicle door and the center point of the wheel opening has a value range of 680 mm ≤ L1 ≤ 980 mm.

5. The cab according to claim 1, characterized in that: The side portion includes a pillar. In the X direction, the pillar is located at a side of the rear edge of the door away from the front portion. The size of the pillar is L3, and the value range of L3 satisfies: 60mm≤L3≤260mm.

6. The cab according to claim 1, characterized in that: In the X direction, the maximum dimension of the driving compartment is L4, and the value range of L4 satisfies: 1550mm≤L4≤1950mm.

7. The cab according to any one of claims 2 to 6, characterized in that: The front portion includes a windshield portion, and the windshield portion is inclined relative to a vertical plane and has an inclination angle of α1, wherein the value range of α1 satisfies: 15°≤α1≤25°.

8. The cab according to claim 7, characterized in that: The front portion includes a first area and a second area arranged in the Z direction, wherein the second area is located on a side of the first area facing the windshield portion and is connected to the windshield portion; Along the Z direction, the second section is inclined relative to the vertical plane and the inclination angle is α2. The difference between the inclination angle α1 of the windshield section relative to the vertical plane and the inclination angle α2 of the second section relative to the vertical plane satisfies: 0°≤α1-α2≤5°.

9. The cab according to claim 8, characterized in that: An inclination angle of the first section relative to the vertical plane is smaller than an inclination angle of the second section relative to the vertical plane. The inclination angle of the first section relative to the vertical plane is α3, and 0°≤α3≤10°.

10. The cab according to claim 8, characterized in that: The maximum dimension of the first section along the Z direction is L5, and the value range of L5 satisfies 320mm≤L5≤420mm.

11. The cab according to claim 7, characterized in that: The front part also includes a third zone, which is located on the side of the windshield part away from the wheel mouth along the Z direction and is connected to the windshield part. The third zone is inclined relative to the vertical plane and the inclination angle is α4, and the value range of α4 satisfies: 25°≤α4≤40°.

12. A chassis, characterized in that: include: A cab as claimed in any one of claims 1 to 11.

13. A light truck, characterized in that: include: A cab as claimed in any one of claims 1 to 11; A chassis having a front wheel and a rear wheel, wherein the center of the front wheel coincides with the center of the wheel opening of the cab; The cargo box is arranged on the chassis.

14. The light truck according to claim 13, characterized in that: A front bumper is provided at the front of the cab. Along the Z direction, the distance between the lower edge of the front bumper and the lower edge of the front wheel is L6, and the value range of L6 satisfies 220mm≤L6≤320mm.

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