Cab, chassis and light truck

Abstract

The utility model relates to a cab, a chassis and a light truck, the cab comprises a driving compartment and a brake pedal, the driving compartment is provided with a driving cabin, the driving compartment comprises a front part and side parts located on the two sides of the front part, and wheel openings are formed in the side parts, are used for being matched with front wheels and are concentrically arranged with the front wheels; the brake pedal is arranged in the cab and connected to the front portion. Wherein in the X direction, the value range of the maximum size L4 of the driving compartment meets the condition that L4 is larger than or equal to 1550 mm and smaller than or equal to 1950 mm, when the brake pedal is in the non-braking state, the center point of the brake pedal is located on the side, facing the front portion, of the center point of the wheel opening, the distance between the center point of the brake pedal and the center point of the wheel opening is L9, and the value range of L9 meets the condition that L9 is larger than or equal to 10 mm and smaller than or equal to 410 mm. According to the cab in the embodiment of the invention, the layout of the cab can be reconstructed, a design space is reserved for forming a streamline structure at the front part of the cab in a limited space, and the design of the low-wind-resistance cab is conveniently realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of driving, in particular to a cab, a chassis and a light truck. BACKGROUND

[0002] The cab is the main workplace of the driver and is also the main component of the related whole vehicle product, therefore, the design of the cab is related to the driving comfort of the driver and the product competitiveness of the related whole vehicle product.

[0003] The driving comfort and the getting-on / off convenience are paid close attention to by the driver because they directly affect the driving experience.

[0004] In addition, reducing the air resistance of the cab is paid more and more attention because it can improve the product competitiveness of the related whole vehicle product. This is because the air resistance will increase significantly with the increase of the speed of the whole vehicle, resulting in a significant increase in the energy consumed due to the increase of the air resistance, which will inevitably affect the cruising range of the whole vehicle under the condition that the total energy of the whole vehicle is constant (for example, the battery capacity is constant). SUMMARY

[0005] The cab, the chassis and the light truck provided by the embodiments of the present application reconfigure the layout of the cab, reserve design space for the formation of a streamlined structure in the front part of the cab in the limited space, and facilitate the design of a low wind resistance cab.

[0006] In a first aspect, the embodiments of the present application provide a cab, which comprises a cab body and a brake pedal, the cab body has a driver's cabin, the cab body comprises a front part and side parts located on both sides of the front part, the side parts are provided with wheel openings, the wheel openings are used to cooperate with front wheels and are concentrically arranged with the front wheels, and the brake pedal is arranged in the driver's cabin and connected to the front part. Wherein, along the X direction, the maximum size L4 of the cab body satisfies the range of 1550mm≤L4≤1950mm, and under the condition that the brake pedal is in a non-braking state, the center point of the brake pedal is located on the side of the center point of the wheel opening towards the front part, and the distance L9 between the center point of the brake pedal and the center point of the wheel opening satisfies the range of 10mm≤L9≤410mm.

[0007] According to any one of the preceding first aspect embodiments of the present application, under the condition that the brake pedal is in a non-braking state, the distance L9 between the center point of the wheel opening and the center point of the brake pedal satisfies the range of 60mm≤L9≤360mm.

[0008] According to any one of the preceding first aspect embodiments of the present application, along the X direction, the maximum size L4 of the cab body satisfies the range of 1550mm≤L4≤1950mm.

[0009] According to any one of the implementation manners of the first aspect of the application, in the X direction, the length of the front overhang is L8, and the ratio of the distance L9 between the center point of the brake pedal and the center point of the wheel opening to the length L8 of the front overhang satisfies 0.01≤L9 / L8≤0.56.

[0010] According to any one of the implementation manners of the first aspect of the application, in the X direction, the length L8 of the front overhang satisfies 640mm≤L8≤840mm.

[0011] According to any one of the implementation manners of the first aspect of the application, the cab further comprises a driver seat, the driver seat is arranged in the driver cabin, and the front end of the driver seat is located on the side away from the front portion of the center point of the wheel opening with a preset distance from the brake pedal in the X direction.

[0012] According to any one of the implementation manners of the first aspect of the application, in the X direction, the distance L10 between the center point of the driver seat and the center point of the wheel opening satisfies 365mm≤L10≤765mm.

[0013] According to any one of the implementation manners of the first aspect of the application, the side portion is provided with a door, in the X direction, the front edge and the rear edge of the door are located on the two sides of the wheel opening respectively, the wheel cover area is formed between the front edge of the door and the rear edge of the wheel opening, and the step area is formed between the rear edge of the door and the rear edge of the wheel opening. The orthographic projection of the driver seat on the side portion is at least partially located in the step area.

[0014] According to any one of the implementation manners of the first aspect of the application, in the X direction, the distance between the center point of the wheel opening and the rear edge of the door is L1, and the distance between the front edge of the door and the rear edge of the door is L2. The length L1 satisfies 630mm≤L1≤1030mm, and the ratio of L1 to L2 satisfies 0.65≤L1 / L2≤0.95.

[0015] According to any one of the implementation manners of the first aspect of the application, the front portion comprises a windshield portion, the windshield portion is arranged to be inclined to the vertical plane with an inclination angle α1, and the value of α1 satisfies 15°≤α1≤25°.

[0016] According to any one of the implementation manners of the first aspect of the application, the front portion further comprises a first area portion and a second area portion arranged in the Z direction, the second area portion is located on the side of the first area portion facing the windshield portion and connected with the windshield portion. In the Z direction, the second area portion is arranged to be inclined to the vertical plane with an inclination angle α2, and the difference between the inclination angle α1 of the windshield portion to the vertical plane and the inclination angle α2 of the second area portion to the vertical plane satisfies 0°≤α1-α2≤5°.

[0017] According to any one of the implementation manners of the first aspect of the application, the first section has an inclination angle relative to the vertical plane, and the inclination angle of the first section relative to the vertical plane is α3, and 0°≤α3≤10°.

[0018] According to any one of the implementation manners of the first aspect of the application, the maximum dimension of the first section in the Z direction is L5, and the value range of L5 satisfies 320mm≤L5≤420mm.

[0019] According to any one of the implementation manners of the first aspect of the application, the front portion further comprises a third section, and in the Z direction, the third section is located on the side of the windshield portion away from the wheel opening and connected to the windshield portion, the third section is arranged to be inclined relative to the vertical plane and has an inclination angle α4, and the value range of α4 satisfies 25°≤α4≤40°.

[0020] The second aspect of the application provides a chassis, which comprises the cab, the frame and the front wheel of the above-mentioned implementation manners, the cab is mounted on the frame, and the center of the front wheel is arranged to coincide with the center of the wheel opening of the cab.

[0021] According to any one of the implementation manners of the second aspect of the application, the front portion of the cab is provided with a front bumper, and in the Z direction, the distance between the lowermost 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.

[0022] The third aspect of the application provides a light truck, which comprises the cab of the first aspect of the application or the chassis of the second aspect of the application.

[0023] The cab provided by the implementation manners of the application can position the brake pedal according to the position of the center point of the wheel opening, and compared with the existing light truck, the position of the driver's sitting posture relative to the whole vehicle is innovated. The maximum dimension L4 of the cab body in the X direction satisfies 1550mm≤L4≤1950mm, and the center point of the brake pedal is located on the side of the center point of the wheel opening towards the front portion and has a distance L9 from the center point of the wheel opening, and the value range of L9 satisfies 10mm≤L9≤410mm, so that in the limited length of the cab, a better man-machine arrangement is realized to meet the driving comfort and the convenience of getting on and off the vehicle, and sufficient design space is reserved for other cab designs (for example, low wind resistance design) to further realize energy consumption reduction.

[0024] The above description is only a summary of the technical solutions of the application, in order to more clearly understand the technical means of the application, the specific implementation manners of the application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the application more obvious and easy to understand, the following specific implementation manners of the application are described. BRIEF DESCRIPTION OF DRAWINGS

[0025] The features, advantages, and technical and scientific effects of the exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0026] Figure 1 is a side view of a chassis provided by some embodiments of the present application;

[0027] Figure 2 is a structural schematic diagram of a chassis omitting vehicle doors provided by some embodiments of the present application;

[0028] Figure 3 is a side view of a cab provided by some embodiments of the present application;

[0029] Figure 4 is a side view of a cab provided by some other embodiments of the present application;

[0030] Figure 5 is a structural schematic diagram of a steering mechanism provided by some embodiments of the present application;

[0031] Figure 6 is a top view of a chassis provided by some embodiments of the present application;

[0032] Figure 7 is a side view of a cab provided by yet some other embodiments of the present application;

[0033] Figure 8 is a side view of a cab provided by yet some other embodiments of the present application;

[0034] Figure 9 is a top view of a cab provided by some embodiments of the present application;

[0035] Figure 10 is a structural schematic diagram of a cab provided by some embodiments of the present application;

[0036] Figure 11 is a side view of a cab provided by yet some other embodiments of the present application;

[0037] Figure 12 is a measurement schematic diagram of a tilt angle provided by some embodiments of the present application;

[0038] Figure 13 is a diagram of a tilt angle of a first section provided by some embodiments of the present application;

[0039] Figure 14 is a side view of a cab provided by yet some other embodiments of the present application.

[0040] BRIEF DESCRIPTION OF THE DRAWINGS

[0041] 100 - chassis; 10 - cab; 20 - front wheel; 30 - rear wheel;

[0042] 1 - driver's compartment; 11 - front part; 111 - windshield part; 112 - first section; 113 - second section; 114 - third section; 115 - front wall; 12 - side part; 121 - wheel opening; 122 - door opening; 2 - vehicle door; 3 - brake pedal; 4 - driver's seat; 5 - steering mechanism; 51 - steering wheel; 52 - steering shaft; 53 - steering shaft support; 54 - steering tie rod; 55 - steering gear; 56 - steering arm;

[0043] S1 - wheelhouse section; S2 - step section.

[0044] In the drawings, the same components are designated by the same reference numerals. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0045] Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, it will be apparent to one of ordinary skill in the art that the application can be practiced without some of these specific details. The description of the embodiments is merely intended to provide a better understanding of the application by showing examples of the application. In the drawings and the following description, well-known structures and techniques have not been shown in order to avoid unnecessary obscurity of the application; and, for clarity, the dimensions of some structures can be exaggerated. Furthermore, features, structures or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0046] The orientation words appearing in the following description are the directions shown in the drawings, and are not intended to limit the specific structure of the present application. In the description of the present application, it should be further noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood broadly, for example, can be fixed connection, or detachable connection, or integrally connected; can be directly connected, or indirectly connected. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] Please refer to Figure 1 , Figure 1 A side view of a chassis 100 provided by some embodiments of the present application is shown.

[0048] The embodiments of the present application provide a light truck, which comprises a chassis 100 and a cargo box arranged on the chassis 100.

[0049] The light truck refers to a cargo vehicle provided with a cargo box, and according to relevant standards, specifically refers to a cargo vehicle with a total length less than 6000mm in the X direction and a total mass less than 4500kg.

[0050] The chassis 100 includes the chassis 100 with the cab 10 and the chassis 100 without the cab 10, that is, the light truck can include the chassis 100 with the cab 10 and the cargo box, or the chassis 100 without the cab 10, the cargo box and the cab 10.

[0051] Taking the chassis 100 with the cab 10 as an example, the chassis 100 can carry various functional systems such as a power system (an engine and / or a power battery, a motor, etc.), a transmission system, a suspension system and a braking system, and the chassis 100 also has the front wheel 20 and the rear wheel 30. The transmission system is used to transmit power of the power system to the front wheel 20 and / or the rear wheel 30 to drive the light truck to travel.

[0052] It should be noted that the cab 10 in the embodiments of the present application can be used in the chassis 100 or the related whole vehicle product (for example, the light truck) of each of the above embodiments and serves as a component part of the chassis 100 or the related whole vehicle product (for example, the light truck), and of course, can also be produced or sold as an independent component.

[0053] In this paper, the direction definition refers to the whole 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-rear direction of the cab; the Y direction is parallel to the ground and points to the left side 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 left-right center symmetry plane of the cab, the Z0 plane is the plane perpendicular to the Y0 plane and parallel to the ground, and the X0 plane is the plane perpendicular to the Y0 plane and the Z0 plane.

[0054] Please refer to Figure 2 and Figure 3 , Figure 2 Fig. 1 shows a structural schematic view of the chassis 100 omitting the vehicle door 2 provided by some embodiments of the present application, Figure 3 Fig. 2 shows a side view of the cab 10 provided by some embodiments of the present application.

[0055] The cab 10 provided by the embodiments of the present application includes the driver's compartment 1 and the brake pedal 3, the driver's compartment 1 has a cab, the driver's compartment 1 includes the front part 11 and the side part 12 located on both sides of the front part 11, the side part 12 is provided with the wheel opening 121, the wheel opening 121 is used to cooperate with the front wheel 20 and is concentrically arranged with the front wheel 20, and the brake pedal 3 is arranged in the cab and connected to the front part 11.

[0056] Wherein, in the X direction, the maximum dimension L4 of the driver's cabin 1 satisfies the range: 1550mm≤L4≤1950mm, 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 towards the front part 11, and the distance L9 between the center point of the brake pedal 3 and the center point of the wheel opening 121 satisfies the range: 10mm≤L9≤410mm.

[0057] In this article, the maximum dimension L4 of the driver's cabin 1 can be the maximum dimension of the projection of the driver's cabin on the Y0 plane measured along the X direction; similarly, the distance L9 between the center point of the brake pedal 3 and the center point of the wheel opening 121 can be the distance between the projections of the center point of the brake pedal 3 and the center point of the wheel opening 121 on the Y0 plane respectively measured along the X direction.

[0058] The driver's cabin 1 refers to the external structure for forming the cab 10, and the driver's cabin 1 includes the front part 11 and the side part 12, which refers to the part on the left and right sides of the cab 10.

[0059] The wheel opening 121 is provided on the side of the side part 12 of the driver's cabin 1 close to the chassis 100, the shape of the wheel opening 121 is adapted to at least part of the contour of the front wheel 20, and the wheel opening 121 is used to cooperate with and be concentrically arranged with the front wheel 20.

[0060] In the existing cab human-machine design, only the driving comfort of the driver (or passenger) in the cab in a sitting position (such as human-machine operation function, driver's field of view, etc.) and the influence of the door opening on the convenience of the driver (or passenger) getting in and out of the vehicle are usually concerned, and the position of the front wheel 20 is rarely taken as a parameter for evaluating the convenience of the driver (or passenger) getting in and out of the vehicle, which is particularly important for cabs with limited cab length or layout space.

[0061] Taking a light truck as an example, regulations require that the overall length of such vehicles should not exceed 6m, which means that the shorter the length of the cab 10, the longer the length of the cargo box, and the length of the cargo box directly affects the carrying capacity of the truck and the product competitiveness.

[0062] Therefore, for cabs with limited cab length or limited layout space, the inventor needs to make a lot of efforts to study how to arrange the cab human-machine to meet the driving comfort and the convenience of getting in and out of the vehicle at the same time. However, by including the position of the front wheel 20 in the evaluation system of the convenience of the driver (or passenger) getting in and out of the vehicle, the present application can conveniently and effectively solve the above problems, solve the problem of human-machine arrangement for cabs with limited cab length or layout space, and meet the driving comfort and the convenience of getting in and out of the vehicle at the same time, and reserve design space for subsequent cab design (such as low-drag design).

[0063] Further, it is particularly important to take the position of the front wheel 20 into account in the evaluation of the convenience of getting on and off the vehicle for the driver (or passenger) not only for a cab with limited cab length or layout space, but also for a streamlined cab designed for low wind resistance.

[0064] For example, for a light truck, to a certain extent, the smaller the wind resistance, the more inclined the front windshield of the cab 10 is, and therefore, in order to ensure that the driver will not be affected by the driving comfort due to the collision with the windshield that is excessively inclined, the overall position of the driver needs to be moved backward, and the overall backward movement of the position of the driver directly leads to the increase of the length of the cab 10, which is not conducive to improving the load capacity and the competitiveness of the whole vehicle product. Therefore, it is necessary to find the minimum size requirement that can meet the man-machine layout requirements of the cab 10 (especially the convenience of getting on and off the vehicle), so as to reserve sufficient design space for other design requirements of the cab 10 (such as the design of the length of the cab, the design of low wind resistance, etc.).

[0065] Therefore, for a cab with limited cab 10 length or limited layout space, the inventor needs to make a lot of efforts to study how to arrange the man-machine of the cab to take into account the driving comfort, the convenience of getting on and off the vehicle, and the low wind resistance performance, so as to further improve the load capacity of the truck and reduce the energy consumption, and improve the competitiveness of the whole vehicle product. Based on this, in the cab 10 in the embodiment of the present application, since the sitting posture of the driver is determined by the brake pedal 3, by taking the position of the front wheel 20 as a parameter in the evaluation system of the convenience of getting on and off the vehicle, more specifically, by positioning the center point of the wheel opening 121 relative to the brake pedal 3, a better solution of the man-machine layout of the cab that can meet the convenience of getting on and off the vehicle for the driver can be obtained, which 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. In addition, compared with the existing light truck, the position of the driver's sitting posture relative to the whole vehicle can be innovated.

[0066] In an embodiment of the present application, by making the maximum dimension L4 of the driver cabin body 1 in the X direction satisfy 1550mm≤L4≤1950mm, and making the distance L9 between the center point of the brake pedal 3 and the center point of the wheel opening 121 on the side of the front portion 11 satisfy 10mm≤L9≤410mm, the driver's sitting position can be moved backward under the condition that the maximum dimension of the driver cabin body 1 is constant (especially for a cab 10 with a smaller length), the driver can get on and off from the rear side of the front wheel 20, and enough space can be left at the front portion 11, so that the front portion 11 of the cab 10 can be designed to have a streamlined structure, the low-drag cab 10 design is realized, and the wind resistance coefficient can be reduced while ensuring getting on and off, the energy consumption is reduced, the cruising range of the cab 10 is improved, the fuel economy of the cab 10 is improved when the cab 10 is a fuel vehicle, and the power consumption of the cab 10 is reduced when the cab 10 is an electric vehicle or a hybrid vehicle.

[0067] The maximum dimension of the driver cabin body 1 in the X direction refers to the distance from the frontmost end of the driver cabin body 1 to the rearmost end of the driver cabin body 1 in the X direction, and can also be the dimension of the projection of the driver cabin body 1 on the Y0 plane in the X direction.

[0068] It can be understood that the larger the maximum dimension L4 of the driver cabin body 1, the more space is available for the man-machine arrangement in the cab 10, but the size of the cargo box is reduced, and conversely, the smaller the maximum dimension L4 of the driver cabin body 1, the larger the size of the cargo box, but the space for man-machine arrangement in the cab is more limited.

[0069] Therefore, the length of the cab 10 is directly related to the product competitiveness of the related whole vehicle product and the man-machine arrangement in the cab.

[0070] In the present application, by making the maximum dimension L4 of the driver cabin body 1 in the X direction be ≥1550mm, the driving requirements of the light truck can be better met, and by making the maximum dimension L4 of the driver cabin body 1 be ≤1950mm, the space occupied by the cab 10 can be reduced and the cargo box space can be increased under the condition that the size of the light truck is constant, so that the cargo carrying requirements of the light truck can be better met.

[0071] In addition, for a cab with a limited cab length or arrangement space, the comfort and convenience of getting on and off in the driver's cabin are more prominent.

[0072] It can be understood that 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 position is from the wheel center of the front wheel 20, and the longer the cab 10 is, which is advantageous for the convenience of getting on and off the cab 10, but is not advantageous for increasing the loading capacity; on the contrary, the larger 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 position is to the wheel center of the front wheel 20 to a certain extent, resulting in a reduced range of the door opening for the driver to get on and off, which is not advantageous for improving the convenience of getting on and off, but the larger the distance between the driver position and the wheel center of the front wheel 20 means that the length of the cab can be shortened, which means that a longer cargo box length can be obtained under the condition that the overall length is constant, which is advantageous for increasing the loading capacity and improving the competitiveness of the product.

[0073] For the cab 10 in the above-mentioned embodiments, by setting the distance L9 between the center point of the brake pedal 3 and the center point of the wheel opening 121 to be greater than or equal to 10 mm when the brake pedal 3 is in a non-braking state, the driver position is not moved too far back, so that the cab space can be reduced to increase the cargo box space under the condition that the size of the light truck is constant, thereby improving the loading performance of the light truck. Moreover, by setting the distance L9 between the center point of the brake pedal 3 and the center point of the wheel opening 121 to be less than or equal to 410 mm, the driver position is moved far enough back to reserve sufficient space in the front portion 11 to form a streamlined structure, and the driver's sitting position is moved to the rear side of the wheel center of the front wheel 20, so that sufficient space is formed on the rear side of the front wheel 20 to facilitate the driver to get on and off the vehicle.

[0074] Therefore, by setting the distance L9 between the center point of the brake pedal 3 and the center point of the wheel opening 121 in the embodiments of the present application to satisfy 10 mm≤L9≤410 mm, a better human-machine arrangement can be achieved under the condition that the length of the cab 10 is limited, to meet the requirements of driving comfort and convenience of getting on and off the vehicle, and sufficient design space is reserved for other cab 10 designs (for example, low-drag design), so that further energy consumption reduction can be achieved.

[0075] In some optional embodiments, the distance L9 between the center point of the brake pedal 3 and the center point of the wheel opening 121 satisfies 60 mm≤L9≤360 mm when the brake pedal 3 is in a non-braking state, further optionally, the distance L9 between the center point of the brake pedal 3 and the center point of the wheel opening 121 satisfies 110 mm≤L9≤310 mm, and the distance L9 between the center point of the brake pedal 3 and the center point of the wheel opening 121 satisfies 110 mm≤L9≤310 mm.

[0076] In one embodiment of the present application, L9=180mm, 210mm or 250mm, which can reserve design space for forming streamlined structure for the front part 11 under limited cab length, thereby facilitating the design of low wind resistance cab 10. Also, the convenience of getting on and off the vehicle can be improved while reducing the driving space, thereby improving the performance of the cab 10.

[0077] It can be understood that when the sitting posture of the driver in the cab 10 is designed based on the center point of the brake pedal 3 relative to the wheel opening 121, other structures in the cab 10 can be adjusted in linkage with the brake pedal 3 to achieve the overall design of the cab 10.

[0078] In some alternative embodiments, the maximum size L4 of the cab body 1 satisfies 1600mm≤L4≤1900mm. Further alternatively, the maximum size L4 of the cab body 1 satisfies 1650mm≤L4≤1850mm. Further alternatively, the maximum size L4 of the cab body 1 satisfies 1700mm≤L4≤1800mm.

[0079] In one embodiment of the present application, L4=1750mm, which can moderate the space of the cab 10, take into account the driving requirements and cargo requirements, and improve the performance of the light truck.

[0080] Please refer to Figures 1 to 3 In some alternative embodiments, the front part 1 includes a front panel arranged along the X direction towards the driver's cabin, and the cab further includes a brake mechanism, which includes a brake pedal bracket, a brake pedal arm and a brake hydraulic system. The brake pedal bracket is connected to the front panel, and the brake pedal 3 is connected to the brake pedal bracket through the brake pedal arm. The brake hydraulic system is arranged on the front panel and is used to compress the liquid in the brake hydraulic system when the driver steps on the brake pedal 3, so as to transmit the brake force to the brake of the chassis 100 through the pipeline.

[0081] That is, after the brake pedal 3 is adjusted along the X direction relative to the center point of the wheel opening 121, the positions of the brake matching mechanism and the front panel 115 are determined accordingly, and the position of the front part 11 can also be adjusted accordingly, so that the overall vehicle structure design can be performed.

[0082] In some alternative embodiments, in the X direction, the length of the front suspension is L8, and the ratio of the distance L9 between the center point of the brake pedal 3 and the center point of the wheel opening to the length L8 of the front suspension satisfies 0.01≤L9 / L8≤0.56. The length of the front suspension is the distance between the frontmost end of the cab 10 and the center point of the wheel opening 121 along the X direction.

[0083] It can be understood that the front portion 11 also includes a front panel located on the side away from the driver's cabin. By making L9 / L8≥0.01, installation space for necessary structures can be left between the front panel and the front apron, and by making L9 / L8≤0.56, the distance between the front panel and the front apron in the X direction can be reduced, so as to increase the interior space of the driver's cabin as much as possible under the condition that the length of the cab in the X direction is constant, thereby improving the comfort of the driver's driving.

[0084] 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 driver's compartment body 1 satisfies: 0.38≤L8 / L4≤0.48.

[0085] It can be understood that when the ratio of the length dimension L8 of the front overhang to the maximum dimension L4 of the driver's compartment body 1 is less than 0.38, the length of the cab 10 in the X direction is too long under the condition that the length of the light truck is constant, resulting in a smaller space of the cargo box. When the ratio of the length dimension L8 of the front overhang to the maximum dimension L4 of the driver's compartment body 1 is greater than 0.48, the length of the cab 10 in the X direction is too short, resulting in poor convenience for getting on and off the vehicle.

[0086] Therefore, in the cab 10 in the embodiments of the present application, by making the ratio of the length dimension L8 of the front overhang to the maximum dimension L4 of the driver's compartment body 1 satisfy: 0.38≤L8 / L4≤0.48 in the X direction, the length of the front overhang can be reduced, the space of the driver's cabin can be reduced and the space of the cargo box can be increased under the condition that the size of the light truck is the same, so as to better meet the cargo carrying demand of the light truck. At the same time, the reduced space of the driver's cabin can also meet the getting on and off demand of the driver.

[0087] Further optionally, in the X direction, the ratio of the length dimension L8 of the front overhang to the maximum dimension L4 of the driver's compartment body 1 satisfies: 0.40≤L8 / L4≤0.45. For example, L8 / L4=0.40, L8 / L4=0.42 or L8 / L4=0.45. The above settings can make the length dimension of the front overhang in the X direction moderate, so as to take into account the cargo carrying demand of the light truck and the getting on and off demand of the driver.

[0088] As described above, it is particularly important to take the front wheel 20 position into account in the evaluation index of the convenience of the driver (or passenger) getting on and off the vehicle for the cab with limited cab length or layout space. After the brake pedal 3 is positioned by the front wheel 20 position, at least one of the positions of the steering wheel 51, the vehicle door 2 and the driver's seat 4 is also adjusted to adapt to the brake pedal 3, so as to effectively obtain a better solution of the cab man-machine layout which can meet the convenience of the driver getting on and off the vehicle.

[0089] Please refer to Figures 1 to 4 , Figure 4A side view of the cab 10 is shown. In some alternative embodiments, the cab 10 further comprises a steering mechanism 5, the steering mechanism 5 comprising a steering wheel 51 arranged in the driver's cabin. In the X direction, 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 of L11 satisfies: -65mm≤L11≤335mm. Wherein, L11 can be the size measured along the X direction 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.

[0090] Wherein, L11 takes a negative value when 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 11, and L11 takes a positive value when the center point of the steering wheel 51 is located on the side of the center point of the wheel opening 121 away from the front 11.

[0091] That is, the steering wheel 51 can be designed according to the position of the brake pedal 3. Compared with the existing cab 10 of a light truck, by moving the steering wheel 51 backward, sufficient space can be reserved for the front 11 of the cab 10 within the limited driving length, so that the front 11 of the cab 10 can form a streamlined structure, realize the design of a low-drag cab 10, and thus the wind resistance coefficient can be reduced while ensuring getting on and off the vehicle, the energy consumption can be reduced, and the cruising range of the cab 10 can be improved.

[0092] For the cab 10 in the above embodiments, by making the distance L11 between the center point of the steering wheel 51 and the center point of the wheel opening 121≥-65mm, the driving position can be moved backward, so that the front 11 can form a streamlined structure, and the driver's sitting position can be moved to the rear side of the center point of the wheel opening 121, so that sufficient space can be formed on the rear side for the driver to get on and off the vehicle. And 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 not be moved too much, so that the driver's cabin space can be reduced, the cargo box space can be increased under the condition that the size of the light truck is constant, and the load-carrying performance of the light truck can be improved.

[0093] In some alternative 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 alternatively, 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 alternatively, 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.

[0094] In one embodiment of the present application, L11=105mm, 135mm or 155mm, in which case, the compact arrangement of the cab 10 and the front wheels 20 can be achieved, so that the front portion 11 can have appropriate space to form a streamlined structure, so as to achieve the design of the low wind resistance cab 10. Also, the convenience of getting on and off the vehicle can be improved while reducing the cab space, and the performance of the cab 10 can be improved.

[0095] Please refer to Figures 1 to 6 , Figure 5 The structure of the steering mechanism 5 provided by some embodiments of the present application is shown in the schematic view, Figure 6 The top view of the chassis 100 provided by some embodiments of the present application is shown.

[0096] In some alternative embodiments, the steering mechanism 5 further comprises a steering shaft 52 and a steering shaft support 53, the steering shaft 52 is fixedly installed on the cab body 1 through the steering shaft support 53, and the steering wheel 51 is in driving connection with the steering shaft 52.

[0097] The steering mechanism 5 further comprises a steering pull rod 54, a steering gear 55, a steering rocker arm 56 and a steering bent arm, the steering gear 55 is fixedly arranged on the frame and located below the cab 10, the first end of the steering pull rod 54 is in driving connection with the steering gear 55 through the steering rocker arm 56, and the second end of the steering pull rod 54 is connected to the hub of the front wheel 20 through the steering bent arm. The length L13 of the steering pull rod 54 along the X direction satisfies: 440mm≤L13≤540mm.

[0098] Compared with the existing light truck, the relative position relationship between the brake pedal 3 and the center point of the wheel opening 121 is adjusted in the light truck of the present application, that is, the steering wheel 51 is arranged forwardly relative to the existing light truck. Since the end of the steering pull rod 54 is connected to the hub of the front wheel 20, the hub of the front wheel 20 can be moved forward on the basis of the center point of the wheel opening 121 being moved forward, so that the length L13 of the steering pull rod 54 along the X direction can be reduced, so that the length L13 of the steering pull rod 54 along the X direction satisfies: 440mm≤L13≤540mm, so as to shorten the cab space.

[0099] In one embodiment, the length L13 of the steering pull rod 54 along the X direction is 470mm, 490mm or 510mm.

[0100] It can be understood that, while the length L13 of the steering pull rod 54 along the X direction is adjusted accordingly, the length L8 of the front overhang of the cab 10 is further compressed.

[0101] In some alternative embodiments, the length dimension L8 of the front overhang of the driver's cabin 10 in the X direction satisfies 640mm≤L8≤840mm. Further alternatively, the length dimension L8 of the front overhang in the X direction satisfies 690mm≤L8≤790mm.

[0102] In one specific embodiment, the length dimension L8 of the front overhang of the driver's cabin 10 in the X direction is 700mm, 720mm, 740mm or 760mm.

[0103] It can be understood that, under the condition that the chassis 100 has a certain dimension in the X direction, by adjusting the position of the front wheel 20, the length dimension L8 of the front overhang of the driver's cabin 10 and the wheelbase dimension L14 of the chassis 100 can be redistributed.

[0104] In some alternative embodiments, the wheelbase L14 satisfies 3360mm≤L14≤4000mm.

[0105] The wheelbase dimension L14 of the chassis 100 is the distance between the center point of the front wheel 20 and the center point of the rear wheel 30 in the X direction. The wheelbase L14 can be the distance measured in the X direction between the projections of the center point of the front wheel 20 and the center point of the rear wheel 30 on the Y0 plane.

[0106] 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 in the X direction. By making the wheelbase L14≥3360mm, the space available for arranging the power battery can be increased to better meet the large power demand. By making the wheelbase L14≤4000mm, space can be reserved for the arrangement 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.

[0107] In some embodiments, L14=3450mm, 3750mm or 3950mm.

[0108] In one specific embodiment of the present application, L8=740mm and L14=3750mm, in which case the power battery capacity can be expanded from 100kWh to 120kWh.

[0109] Please refer to Figures 1 to 7 , Figure 7 FIG. 6 shows a side view of the driver's cabin 10 according to some embodiments of the present application. In some alternative embodiments, the driver's cabin 10 further comprises a driver's seat 4 arranged in the driver's cabin, the front end of the driver's seat 4 has a predetermined distance from the brake pedal 3 in the X direction, and is located on the side of the center point of the wheel opening 121 away from the front portion 11.

[0110] That is, the driver's seat 4 can be designed according to the position of the steering wheel 51, and the front end of the driver's seat 4 is arranged at a preset distance from the brake pedal 3 in the X direction to leave a driving space for the driver to facilitate driving operation. In addition, by arranging the front end of the driver's seat 4 at a position away from the center point of the wheel opening 121 on the front portion 11, the highest point of the wheel opening 121 can be avoided, so as to increase the clearance between the wheel opening 121 and the driver's seat 4, and facilitate the driver to get on and off the vehicle.

[0111] In some optional embodiments, the center point of the driver's seat 4 is located at a position away from the center point of the wheel opening 121 on the front portion 11, and the distance between the center point of the driver's seat 4 and the center point of the wheel opening 121 is L10, and the distance between the center point of the driver's seat 4 and the center point of the wheel opening 121 is L10, and the value range of L10 satisfies 365mm≤L10≤765mm. Wherein, L10 can be the size measured along the X direction between the projection of the center point of the driver's seat 4 on the Y0 plane and the projection of the center point of the wheel opening 121 on the Y0 plane.

[0112] That is, the driver's seat 4 can be designed according to the position of the steering wheel 51, and compared with the existing cab 10 of the light truck, by moving the driver's seat 4 rearward, sufficient space can be reserved for the front portion 11 of the cab 10 in a limited driving length, so as to allow the front portion 11 of the cab 10 to form a streamlined structure, realize the design of the low-drag cab 10, and then reduce the wind resistance coefficient, reduce the energy consumption, and improve the cruising range of the cab 10 while ensuring getting on and off the vehicle.

[0113] It can be understood that the smaller the distance L10 between the center point of the driver's seat 4 and the center point of the wheel opening 121, the closer the driver's seat position to the front wheel, and at this time, the size for the driver to get on and off the vehicle will be reduced, which is not conducive to the convenience of the driver to get on and off the vehicle. On the contrary, the larger the distance L10 between the center point of the driver's seat 4 and the center point of the wheel opening 121, the farther the driver's seat position from the front wheel, and at this time, the size of the pedal area for the driver to get on and off the vehicle will be increased, which is conducive to the convenience of the driver to get 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 improving the carrying capacity of the whole vehicle.

[0114] Specifically, the center point of the driver's seat 4 is located at a position away from the center point of the wheel opening 121 on the front portion 11, and the distance L10 between the center point of the driver's seat 4 and the center point of the wheel opening 121 is greater than or equal to 365mm, which can move the driving position rearward to facilitate the driver to get on and off the vehicle, and allow the front portion 11 of the cab 10 to form a streamlined structure. In addition, by arranging the distance L10 between the center point of the driver's seat 4 and the center point of the wheel opening 121 to be less than or equal to 765mm, the driving position can not be moved too much, so as to reduce the cockpit space, increase the cargo box space, and improve the carrying performance of the light truck under the condition that the size of the light truck is constant.

[0115] In some optional embodiments, the value of L10 satisfies 415mm≤L10≤715mm. Further optionally, the value of the distance L10 between the center point of the driver seat 4 and the center point of the wheel opening 121 satisfies 465mm≤L10≤665mm. Further optionally, the value of the distance L10 between the center point of the driver seat 4 and the center point of the wheel opening 121 satisfies 515mm≤L10≤615mm.

[0116] In one specific embodiment of the present application, L10=525mm, 565mm or 605mm, which can leave a moderate space at the front portion 11 to allow the front portion 11 of the cab 10 to form a streamlined structure, achieving a low wind resistance cab 10 design. Also, it can improve the convenience of getting on and off the cab 10 while reducing the space of the driving cavity, improving the performance of the cab 10.

[0117] Please refer to Figures 2 to 8 , Figure 8 A side view of the cab 10 provided by some other embodiments of the present application is shown. In some optional embodiments, the side portion 12 is provided with a door 2, in the X direction, the front edge and the rear edge of the door 2 are respectively located on both sides of the wheel opening 121, and the wheel cover area S1 is formed between the front edge of the door 2 and the rear edge of the wheel opening 121, and the step area S2 is formed between the rear edge of the door 2 and the rear edge of the wheel opening 121. Among them, the orthographic projection of the driver seat 4 on the side portion 12 is at least partially located in the step area S2.

[0118] Among them, the side portion 12 is provided with a door hole 122 for the driver to get on and off the cab, and the door 2 is rotatably connected to the side portion 12 and covers the door hole 122, or the door 2 is slidably connected to the side portion 12 and covers the door hole 122. The door 2 can be a special-shaped structure, the front edge of the door 2 refers to the most forward edge in the X direction, and the rear edge of the door 2 refers to the last edge in the X direction.

[0119] By locating the front edge and the rear edge of the door 2 on both sides of the wheel opening 121, the step area S2 can be formed between the rear edge of the door 2 and the rear edge of the wheel opening 121. And by locating the orthographic projection of the driver seat 4 on the side portion 12 at least partially in the step area S2, the driver's sitting position can correspond to the step area S2, so as to facilitate the driver to get on and off the cab through the step area S2, and improve the convenience of getting on and off the cab.

[0120] In some optional embodiments, in the X direction, the distance between the center point of the wheel opening 121 and the rear edge of the door 2 is L1, and the distance between the front edge of the door 2 and the rear edge of the door 2 is L2. Among them, the value of L1 satisfies 630mm≤L1≤1030mm, and the value of the ratio of L1 to L2 satisfies 0.65≤L1 / L2≤0.95.

[0121] Wherein, the distance L2 between the front edge and the rear edge of the door can be the distance measured along the X direction of the projections of the front edge and the rear edge of the door on the Y0 plane respectively; Similarly, the distance L1 between the rear edge of the door 2 and the center point of the wheel opening 121 can be the distance measured along the X direction of the projections of the rear edge of the door 2 and the wheel opening 121 on the Y0 plane respectively.

[0122] Generally, the side part 12 is provided with a door opening 122 for the driver to get on and off the vehicle, and the door 2 is rotatably connected to the side part 12 and covers the door opening 122, or the door 2 can also be slidingly connected to the side part 12 and covers the door opening 122. The door 2 can be a special-shaped structure, and the front edge of the door 2 refers to the most forward edge along the X direction, and the rear edge of the door 2 refers to the last edge along the X direction.

[0123] The most forward edge of the door 2 corresponds to the most forward edge of the door opening 122 of the door 2, and the pivot point of the door 2 is generally arranged at the most forward edge of the door 2, so as to be fully opened and utilize the door opening of the door 2 to improve the convenience of the driver getting on and off the vehicle.

[0124] It can be understood that the greater the distance between the rear edge of the door 2 and the center point of the wheel opening 121, the better the convenience of the driver getting on and off the vehicle, but it also causes the overall length of the cab to increase, thereby directly affecting the load 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 smaller the length of the cab under the condition that the overall length of the vehicle is constant, and the larger the cargo box can be designed, but the convenience of the driver getting on and off the vehicle is poorer, and the space left for wind resistance design is smaller, and it is difficult to realize low wind resistance design.

[0125] By making the distance L1 between the rear edge of the door 2 and the center point of the wheel opening 121≥630mm, the space of the step area S2 can be increased to improve the convenience of the driver getting on and off the vehicle, and by making the distance L1 between the rear edge of the door 2 and the center point of the wheel opening 121≤1030mm, the space of the cab 10 can be controlled within a reasonable range, and the cargo box space is increased under the condition that the overall length of the vehicle is constant.

[0126] And 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, enough space can be left at the front part 11 to make the front part 11 of the cab 10 form a streamlined structure, realize low wind resistance cab 10 design, and thereby the wind resistance coefficient can be reduced while ensuring getting on and off the vehicle, the energy consumption is reduced, and the cruising range of the cab 10 is improved. On the other hand, by setting L1 relatively large, more generous space can be provided for the driver to get on the vehicle, which is conducive to improving the convenience of getting on and off the vehicle.

[0127] For the cab 10 in the above embodiments, when the ratio a of L1 to L2 is less than 0.65, the door 2 is moved forward relative to the center point of the wheel opening 121 too much, resulting in less space for getting on and off behind the front wheels, affecting the convenience of getting on and off, and in addition, the door 2 being moved forward relative to the center of the front wheels 20 too much also causes the front part 11 of the cab 10 to be difficult to form a streamlined structure, reducing the effect of reducing the wind resistance of the cab 10, and the effect of reducing energy consumption is not obvious enough. When the ratio a of L1 to L2 is greater than 0.95, the door 2 is moved backward relative to the center point of the wheel opening 121 too much, and in the case of a certain overall vehicle length, 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.

[0128] Therefore, by making the value range of L1 in the embodiments of the present application satisfy 630mm≤L1≤1030mm, and the ratio a of L1 to L2 satisfy 0.65≤a≤0.95, the cab 10 can have the possibility of reducing the size of the cab and reducing energy consumption while meeting the convenience of getting on and off.

[0129] In some optional embodiments, the value range of the distance L1 between the rear edge of the door 2 and the center point of the wheel opening 121 satisfies 680mm≤L1≤980mm, further optionally, the value range of the distance L1 between the rear edge of the door 2 and the center point of the wheel opening 121 satisfies 780mm≤L1≤930mm, and further optionally, the value range of the distance L1 between the rear edge of the door 2 and the center point of the wheel opening 121 satisfies 780mm≤L1≤880mm.

[0130] 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 can be 0.77, 0.795 or 0.81, in other words, L1 / L2=0.77, L1 / L2=0.795 or L1 / L2=0.81, the ratio of the distance between the front edge of the door 2 and the center point of the wheel opening 121 to the distance between the front edge and the rear edge of the door 2 of the cab 10 is moderate, which can allow a smaller size of the cab 10 while meeting the needs of the driver getting on and off, and allow the front part 11 of the cab 10 to form a streamlined structure, so as to balance the convenience of getting on and off, shorten the length of the cab, and reduce the wind resistance of the cab 10, and reduce energy consumption.

[0131] In one specific embodiment of the present application, L1=833mm, L2=1048mm, a=L1 / L2=0.795, the relative positions between the front and rear edges of the cab body 1 and the center points of the wheel openings 121 in the X direction can meet the space requirements of the cab 10 and the getting on and off requirements, and at the same time, the front part 11 of the cab 10 is reserved with a design space, which is beneficial to reduce the wind resistance of the cab 10 and reduce energy consumption.

[0132] Referring to Figure 9 , Figure 9 Fig. 1 shows a top view of the cab 10 provided by some embodiments of the present application. In some optional embodiments, in the Y direction, the maximum size of the cab body 1 is L7, and the value range of L7 satisfies: 2120mm≤L7≤2220mm.

[0133] The maximum size of the cab body 1 in the Y direction refers to the distance from the leftmost end to the rightmost end of the projection of the cab body 1 on the X0 plane in the Y direction, i.e., the distance of the two side parts 12 of the cab body 1 in the Y direction, except for the rearview mirror and the blind mirror of the cab 10. The maximum size of the cab body 1 in the Y direction is related to the size of the cargo box in the Y direction, which can be equal to the size of the cargo box in the Y direction to reduce the wind resistance.

[0134] In one specific embodiment of the present application, the size of the cargo box in the Y direction is set to 2170mm, and therefore the maximum size L7 of the cab body 1 is 2170mm, so that the surface of the side part 12 of the cab body 1 is flush with the cargo box to reduce the wind resistance coefficient.

[0135] Referring to Figures 1 to 12 , Figure 10 Fig. 2 shows a structural schematic view of the cab 10 provided by some embodiments of the present application, Figure 11 Fig. 3 shows a side view of the cab 10 provided by some embodiments of the present application, Figure 12 Fig. 4 shows a measurement schematic view of the inclination angle provided by some embodiments of the present application.

[0136] In some optional embodiments, the front part 11 includes a windshield part 111, and the windshield part 111 is arranged to be inclined to the vertical plane with an inclination angle a1, wherein the value range of a1 satisfies: 15°≤a1≤25°.

[0137] The inclination angle a1 of the windshield part 111 to the vertical plane can be represented by the angle between the inclined line of the windshield part 111 and the vertical line. The inclined line of the windshield part 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 part 111 in the Y direction, and the second intersection point is the intersection point formed by the 457mm circular arc with the first intersection point and the windshield part 111.

[0138] It can be understood that the greater the inclination angle a1 of the windshield portion 111 relative to the vertical plane, the smaller the positive pressure on the cab, which is conducive to reducing the wind resistance coefficient, but at the same time, the driver position will be forced to move backward to avoid affecting the driving field of view, operability, etc., and the driver position moving backward will inevitably lead to an increase in the overall length of the cab, which is not conducive to the carrying capacity of the whole vehicle; on the contrary, the smaller the inclination angle a1 of the windshield portion 111 relative to the vertical plane, the more conducive to human-machine arrangement and reducing the length of the cab, but at this time, the positive pressure on the cab will increase, thereby increasing the wind resistance, which is not conducive to the endurance mileage of the whole vehicle.

[0139] In the present application, by making the inclination angle a1 of the windshield portion 111 relative to the vertical plane ≥15°, the windshield portion 111 can be inclined relative to the vertical plane at a sufficient angle to reduce the positive pressure area, reduce the wind resistance coefficient, and reduce the energy consumption of the cab 10. By making the inclination angle a1 of the windshield portion 111 relative to the vertical plane ≤25°, the windshield portion 111 can be inclined relative to the vertical plane without being too large, so that the interior space of the cab can meet the demand, thereby improving the comfort of the driver and the convenience of getting in and out of the vehicle.

[0140] In one specific embodiment of the present application, a1 = 18°, 20° or 23° to balance the demand for reducing wind resistance and reducing the space of the cab, and improve the performance of the cab 10.

[0141] In some optional embodiments, the front portion 11 further comprises a first zone portion 112 and a second zone portion 113 arranged in the Z direction, and the second zone portion 113 is located on the side of the first zone portion 112 towards the windshield portion 111 and connected with the windshield portion 111. In the Z direction, the second zone portion 113 is arranged inclined relative to the vertical plane with an inclination angle a2, and the difference between the inclination angle a1 of the windshield portion 111 relative to the vertical plane and the inclination angle a2 of the second zone portion 113 relative to the vertical plane satisfies: 0°≤a1-a2≤5°.

[0142] The first zone portion 112 can be a region provided with a front bumper, and the second zone portion 113 can be a region provided with a front panel.

[0143] Similarly to the windshield portion 111, the inclination angle a2 of the second zone portion 113 relative to the vertical plane can be represented by the angle between the inclined line of the second zone portion 113 and the vertical line. The inclined line of the second zone portion 113 refers to the line connecting the third intersection point and the fourth intersection point, the third intersection point being the middle point of the lower edge of the second zone portion 113 in the Y direction, and the fourth intersection point being the intersection point formed by the third intersection point making a 457 mm circular arc with the second zone portion 113.

[0144] Since the smaller 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, the closer the inclination angles of the windshield portion 111 and the second section 113, i.e. the windshield angle, and the smaller the wind resistance coefficient, by setting 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.

[0145] It can be understood that since the cab 10 also includes functional structures such as the steering wheel 51, the brake pedal 3, etc., which need to be connected to the second section 113 of the cab body 1, the inclination angle α2 of the second section 113 relative to the vertical plane cannot be set too large, i.e. 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, which can take into account the setting requirements of the windshield and the functional structures inside the cab 10.

[0146] Please refer to Figures 1 to 13 , Figure 13 A diagram of the inclination angle of the first section according to some embodiments of the present application is shown. In some alternative 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°.

[0147] It can be understood that the inclination angle of the first section 112 has an influence on both the wind resistance and the interior space of the cab. For example, the larger the inclination angle of the first section 112, the smaller the windward area of the front part of the cab, which is beneficial for reducing the wind resistance, but has a limited effect on the space for the man-machine arrangement (e.g. brake pedal, steering wheel, etc.) inside the cab. In an embodiment of the present application, under the condition that the maximum size of the cab 10 in the X direction is constant, by reducing the inclination angle α3 of the first section 112 relative to the vertical plane, the setting position of the second section 113 and the windshield portion 111, etc. in the X direction can be moved forward, thereby increasing the interior space of the cab, facilitating the setting of functional components inside the cab 10, and improving the comfort of the driver and the convenience of getting in and out of the vehicle.

[0148] In a specific embodiment of the present application, α3=0° or 5°, which can reduce the wind resistance to a certain extent, avoid excessive arrangement of components inside the cab, and facilitate the setting of the front bumper, thereby improving the anti-collision capability of the cab 10.

[0149] In some optional embodiments, the maximum dimension of the first section 112 along the Z direction is L5, and the value of L5 satisfies 320mm≤L5≤420mm. The maximum dimension of the first section 112 along the Z direction can be the dimension of the projection of the first section 112 on the Y0 plane along the Z direction.

[0150] Since the first section 112 is usually formed by the front bumper, the dimension of the first section 112 along the Z direction can be represented by the distance from the lowermost end of the front bumper to the fifth intersection point, which is the uppermost end of the intermediate position of the front bumper along the Y direction.

[0151] By setting the maximum dimension of the first section 112 along the Z direction to be L5≥320mm, the appearance of the cab 10 and the height of the license plate that can be arranged are 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 setting the maximum dimension of the first section 112 along the Z direction to be L5≤420mm, the height of the first section 112 along the Z direction is reduced, so as to reduce the area of the positive pressure zone of the front portion 11 of the cab 10 and the wind resistance coefficient.

[0152] In one specific embodiment of the present application, L5=340mm, 370mm or 400mm, so as to balance the reduction of the wind resistance coefficient and the arrangement requirement of the functional structure inside the cab 10.

[0153] 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 of L6 satisfies 220mm≤L6≤320mm.

[0154] The lower edge of the front wheel 20 is the ground line when the cab 10 is in an empty state, so the distance between the lowermost edge of the first section 112 and the lower edge of the front wheel 20 is the distance between the lowermost edge of the front bumper and the ground line along the Z direction.

[0155] It can be understood that the distance L6 between the lowermost edge of the first section 112 and the lower edge of the front wheel 20 is related to the passability and wind resistance of the whole vehicle. The greater the distance L6 between the lowermost edge of the first section 112 and the lower edge of the front wheel 20, the greater the approach angle and the better the passability of the whole vehicle, but the ground clearance increases, and the wind resistance also increases, which is not conducive to reducing energy consumption. On the contrary, the smaller the distance L6 between the lowermost edge of the first section 112 and the lower edge of the front wheel 20, the smaller the wind resistance, which is conducive to improving the cruising range, but the passability of the whole vehicle is poor.

[0156] In an embodiment of the present application, by setting the distance L6 between the lowermost edge of the first section 112 and the lower edge of the front wheel 20 to be ≥ 220 mm, the ground clearance of the front bumper in the Z direction can be increased, the risk of the cab 10 colliding with the ground can be reduced, and the cab 10 can be driven on various road surfaces. Moreover, by setting the distance L6 between the lowermost edge of the first section 112 and the lower edge of the front wheel 20 to be ≤ 320 mm, the ground clearance can not be 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.

[0157] In some alternative embodiments, the distance L6 between the lowermost edge of the first section 112 and the lower edge of the front wheel 20 is in the range of 235 mm ≤ L6 ≤ 305 mm. Further alternatively, the distance L6 between the lowermost edge of the first section 112 and the lower edge of the front wheel 20 is in the range of 250 mm ≤ L6 ≤ 290 mm.

[0158] In a specific embodiment of the present application, L6 = 250 mm, 270 mm, or 300 mm, so as to reduce the wind resistance coefficient and meet the driving requirements of the cab 10.

[0159] Please refer to Figure 14 , Figure 14 FIG. 6 shows a side view of the cab 10 according to some embodiments of the present application.

[0160] In some alternative embodiments, the front portion 11 further comprises a third section 114, which is located on the side of the windshield section 111 away from the wheel opening 121 and connected to the windshield section 111 in the Z direction. The third section 114 is inclined with respect to the vertical plane and the inclination angle is α4, which is in the range of 25° ≤ α4 ≤ 40°.

[0161] The third section 114 refers to the section above the windshield in the Z direction. The third section 114 can be integrally provided with the first section 112 and the second section 113 and serve as the roof of the cab 10, or the third section 114 can be separately provided and form a fairing.

[0162] Similarly to the windshield section 111, the inclination angle α4 of the third section 114 with respect to the vertical plane can be represented by the angle between the inclined line of the third section 114 and the vertical line. The inclined 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 112 in the Y direction, and the seventh intersection point is the intersection point formed by the 457 mm arc with the sixth intersection point and the third section 114.

[0163] By making the third section 114 inclined to the vertical surface at an angle α4≥25°, the third section 114 can be inclined to the vertical surface at a sufficient angle to reduce the wind resistance coefficient and reduce the energy consumption of the cab 10. By making the third section 114 inclined to the vertical surface at an angle α4≤40°, the third section 114 can be inclined to the vertical surface at an angle that is not too large, so that the interior space of the cab can meet the requirements, thereby improving the comfort of the driver and the convenience of getting in and out of the cab.

[0164] In one embodiment of the present application, α4=30°, 33°, 35°, or 38°, to balance the reduction of the wind resistance coefficient and the driving requirements of the cab 10.

[0165] Please refer to Figures 1 to 14 The cab 10 provided by the embodiment of the present application can include 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 and are concentrically arranged with the front wheels 20.

[0166] In the X direction, the maximum size of the cab body 1 is L4=1750mm, and the length of the front suspension is L8=740mm.

[0167] In the X direction, the front edge and the rear edge of the door 2 are 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, in 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 away from the front portion 11, and the distance between the center point of the brake pedal 3 and the center point of the wheel opening 121 is L9=210mm. And / or, the cab 10 further includes a driver's seat 4. In 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 portion 11, and the distance between the center point of the driver's seat 4 and the center point of the wheel opening 121 is L10=565mm. And / or, the cab 10 further includes a steering wheel 51. In 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 between the center point of the steering wheel 51 and the center point of the wheel opening 121 is L11=135mm.

[0168] Further, the front part 11 comprises a windshield part 111 which is arranged to be inclined to the vertical plane with an inclination angle α1 = 20°, and further comprises a first zone part 112, a second zone part 113 and a third zone part 114 arranged in the Z direction, the difference between the inclination angle α1 of the windshield part 111 to the vertical plane and the inclination angle α2 of the second zone part 113 to the vertical plane satisfies: 0° ≤ α1-α2 ≤ 5°, the inclination angle α3 = 0° of the first zone part 112 to the vertical plane, and the inclination angle α4 = 33° of the third zone part 114 to the vertical plane.

[0169] Further, the minimum size of the first zone part 112 in the Z direction is L5 = 370 mm, and the distance between the lowermost edge of the first zone part 112 and the lower edge of the front wheel 20 is L6 = 270 mm.

[0170] According to the test, under the high-speed energy consumption condition of constant speed 90 km / h, the wind resistance coefficient of the traditional light truck with flat-nosed cab is about 0.500, while the wind resistance coefficient of the light truck with the cab of the above-mentioned embodiment of the present application is about 0.300, which can reduce the energy consumption of the traditional light truck by about 20%.

[0171] Therefore, according to the cab 10, the chassis 100 and the light truck in the embodiments of the present application, since they comprise the cab 10 in the above-mentioned embodiments, they also have the advantages of small cabin space, high convenience of getting on and off, low wind resistance coefficient, low energy consumption and the like, and are more convenient for popularization and application.

[0172] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the present application, and equivalent substitutions can be made to the components thereof. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. 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 driver compartment having a driver cabin, the driver compartment comprising a front portion and side portions on both sides of the front portion, the side portions being provided with wheel openings configured to cooperate with and concentric with front wheels; a brake pedal provided in the driver cabin and connected to the front portion; wherein, in the X direction, the maximum dimension L4 of the driver compartment satisfies 1550mm≤L4≤1950mm, and in a non-braking state of the brake pedal, a distance L9 between a center point of the brake pedal and a center point of the wheel opening on a side of the center point of the wheel opening towards the front portion satisfies 10mm≤L9≤410mm.

2. The cab of claim 1, wherein, In the non-braking state of the brake pedal, the distance L9 between the center point of the wheel opening and the center point of the brake pedal satisfies 60mm≤L9≤360mm.

3. The cab of claim 1, wherein, In the X direction, the maximum dimension L4 of the driver compartment satisfies 1550mm≤L4≤1950mm.

4. The cab of claim 1, wherein, In the X direction, a length dimension L8 of a front suspension, and a ratio L9 / L8 of the distance L9 between the center point of the brake pedal and the center point of the wheel opening to the length dimension L8 of the front suspension satisfy 0.01≤L9 / L8≤0.

56. The length dimension of the front suspension is a distance between a frontmost end of the cab and the center point of the wheel opening in the X direction.

5. The cab of claim 4, wherein, In the X direction, the length dimension L8 of the front suspension satisfies 640mm≤L8≤840mm.

6. The cab of claim 1, wherein, The cab further comprises a driver seat provided in the driver cabin, a front end of the driver seat having a preset distance from the brake pedal in the X direction and being located on a side of the center point of the wheel opening away from the front portion.

7. The cab of claim 6, wherein, In the X direction, a distance L10 between a center point of the driver seat and the center point of the wheel opening satisfies 365mm≤L10≤765mm.

8. The cab of claim 6, wherein, The side portions are provided with doors, in the X direction, a front edge and a rear edge of the doors are respectively located on both sides of the wheel opening, and a wheel cover area is formed between the front edge of the door and the rear edge of the wheel opening, and a step area is formed between the rear edge of the door and the rear edge of the wheel opening. The orthographic projection of the driver seat on the side portion is at least partially located in the step area.

9. The cab of claim 8, wherein, In the X direction, a distance L1 between the center point of the wheel opening and the rear edge of the door, and a distance L2 between the front edge of the door and the rear edge of the door satisfy 630mm≤L1≤1030mm, and a ratio L1 / L2 of L1 to L2 satisfies 0.65≤L1 / L2≤0.

95. The front portion comprises a windshield portion, the windshield portion being provided obliquely to a vertical plane and having an oblique angle α1, wherein α1 satisfies 15°≤α1≤25°.

10. A cab according to any one of claims 2 to 9, characterised in that, The front portion further comprises a first zone portion and a second zone portion provided in the Z direction, the second zone portion being located on a side of the first zone portion towards the windshield portion and connected to the windshield portion.

11. The cab of claim 10, wherein, ​ In the Z direction, the second section is arranged to be inclined to the vertical plane by an angle α2, and the difference between the angle of inclination α1 of the windshield section to the vertical plane and the angle of inclination α2 of the second section to the vertical plane satisfies: 0°≤α1-α2≤5°.

12. The cab of claim 11, wherein, The angle of inclination α3 of the first section to the vertical plane is less than the angle of inclination of the second section to the vertical plane, and the angle of inclination α3 of the first section to the vertical plane satisfies: 0°≤α3≤10°.

13. The cab of claim 11, wherein, The maximum dimension of the first section in the Z direction is L5, and the value of L5 satisfies: 320mm≤L5≤420mm.

14. The cab of claim 10, wherein, The front portion further comprises a third section, which is located on the side of the windshield section away from the wheel opening and connected to the windshield section in the Z direction, and the third section is arranged to be inclined to the vertical plane by an angle α4, and the value of α4 satisfies: 25°≤α4≤40°.

15. A pan characterized by, The cab as claimed in any one of claims 1 to 14; The cab as claimed in any one of claims 1 to 14; The cab as claimed in any one of claims 1 to 14; The front portion of the cab is provided with a front bumper, and the distance between the lowermost edge of the front bumper and the lower edge of the front wheel in the Z direction is L6, and the value of L6 satisfies: 220mm≤L6≤320mm.

16. The base pan of claim 15, wherein, The cab as claimed in any one of claims 1 to 14 or the chassis as claimed in claim 15 or 16.

17. A pickup truck characterized by ​

Images