Gear recognition assembly of manual gear vehicle, gear visual system and vehicle

Abstract

The utility model discloses a manual gear vehicle gear recognition assembly, a gear visual system and a vehicle. The manual gear vehicle gear recognition assembly comprises a gear shifting rod, a gear selecting position sensor and a gear shifting sensor. The gear shifting rod has two freedom degrees of rotation around the axis and translation in the axial direction, and multiple gears are achieved. The shift lever translates along the axis to select gears, and the shift lever rotates around the axis to realize forward or backward gear shifting at the corresponding neutral gear; the gear selecting position sensor is configured to perform axial translation detection on the gear shifting rod, when the gear shifting rod has horizontal displacement, the gear selecting position sensor can output translation signals, and different translation distances correspond to different neutral gear positions; the gear shifting sensor is constructed to conduct rotation detection on the gear shifting rod around the axis, when the gear shifting rod has angular displacement, the gear shifting sensor can output rotation signals, and different rotation directions correspond to the front gear or the rear gear of any neutral gear position. The current gear is displayed by the multi-gear vehicle instrument panel, so that the driving safety is facilitated; meanwhile, the structure change is small and the cost is low.

Description

Technical Field

[0001] This utility model relates to a gear position recognition component for manual transmission vehicles, belonging to the field of vehicle gear position technology. Background Technology

[0002] Mining trucks with manual transmissions typically have eight or more gears, and drivers sometimes forget which gear they are currently in. Mining areas often have complex road conditions, with many steep slopes and cliffs, making it difficult to determine the current gear in emergencies, which poses a risk to safe operation.

[0003] Existing patent CN203283117U, "Manual Transmission Vehicle Gear Display and Shift Indication Device," mentions that the current gear information is obtained through two methods: transmission ratio calculation and gear position sensor identification. Transmission ratio calculation refers to calculating the transmission ratio using current engine speed and vehicle speed information to deduce the current gear. Gear position sensor identification refers to installing several Hall effect position sensors at corresponding positions on the gear shift lever or gear shift cable to detect the position of the gear shift lever or gear shift cable and thus obtain the current gear information.

[0004] The accuracy of gear selection calculated using the transmission ratio is closely related to the accuracy of the speed sensor's speed detection. If the vehicle speed is low, the speed sensor's accuracy decreases significantly, potentially leading to inaccurate gear selection. Furthermore, when the clutch is partially engaged, the engine speed does not equal the transmission's input speed, which may result in incorrect gear selection using this method.

[0005] Therefore, the method of identifying gears by calculating the transmission ratio has the disadvantages of low accuracy and long judgment time; the gear information may even be incorrect during the clutch's semi-engagement process. The method of identifying gears using a gear shift cable and gear position sensor has the disadvantages of high cost and significant component modifications. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a manual transmission vehicle gear position recognition component that can accurately identify gears in real time; the instrument panel of a multi-gear vehicle displays the current gear, which helps with driving safety; at the same time, it has minimal structural changes and low cost.

[0007] This utility model is achieved according to the following technical solution:

[0008] In a first aspect, this utility model provides a gear position recognition component for a manual transmission vehicle, comprising:

[0009] The gear shift lever has two degrees of freedom: rotation around an axis and translation along an axis, enabling multiple gear positions. The translation of the gear shift lever along the axis is used for gear selection, while the rotation of the gear shift lever around the axis enables shifting forward or backward from the corresponding neutral position.

[0010] The gear selection position sensor is configured to detect the axial translation of the gear shift lever. When the gear shift lever has a horizontal displacement, the gear selection position sensor will output a translation signal. Different translation distances correspond to different neutral positions.

[0011] The shift sensor is configured to detect the rotation of the shift lever around an axis. When the shift lever has angular displacement, the shift sensor will output a rotation signal. Different rotation directions correspond to either forward or reverse gear at any neutral position.

[0012] In some embodiments, the shift sensor is rigidly connected to the axial end of the shift lever and is able to rotate with the shift lever.

[0013] In some embodiments, a flat pin is fixed on the shift sensor, and the shift lever has an axial protrusion extending toward the flat pin. The outer contour shape of the axial protrusion is the same as the inner hole contour shape of the flat pin, and there is a clearance fit between the axial protrusion and the flat pin. The flat pin limits the circumferential rotation of the shift lever, but does not limit its axial movement.

[0014] In some embodiments, the flat pin has an axially extending oblong hole, and a radially extending pin is fixed on the axial protrusion of the shift lever located in the oblong hole. The pin engages with the oblong hole to prevent the shift lever from disengaging from the flat pin.

[0015] In some embodiments, a gear selection guide block is fitted onto the gear shift lever, and the two are coupled as follows: when the gear shift lever rotates, the gear selection guide block does not rotate, but when the gear shift lever translates along the axis, it can drive the gear selection guide block to translate; a gear selection swing arm is provided between the gear selection guide block and the gear selection position sensor, one end of the gear selection swing arm is fixedly connected to the gear selection position sensor in the longitudinal direction, and the other end of the gear selection swing arm is movably connected to the gear selection guide block; the axial translation of the gear selection guide block drives the gear selection swing arm to swing, thereby driving the gear selection position sensor to rotate.

[0016] In some embodiments, the axial protrusion of the gear selection position sensor is tightly inserted into the flat opening at one end of the gear selection swing arm; the other end of the gear selection swing arm is provided with a U-shaped groove, and the radial protrusion of the gear selection guide block is inserted into the U-shaped groove, with a clearance fit between the two.

[0017] In some embodiments, the gear selector block is provided with a waist-shaped hole extending circumferentially, and a radially extending pin is fixed on the gear shift lever located in the waist-shaped hole. The pin cooperates with the waist-shaped hole to enable both to translate along the axis.

[0018] Secondly, this utility model provides a manual transmission vehicle gear position display system, including:

[0019] The aforementioned gear position recognition component for manual transmission vehicles;

[0020] The vehicle's instrument panel is electrically connected to the gear selection position sensor and the shift sensor to display the vehicle's actual gear position.

[0021] Thirdly, this utility model provides a vehicle that includes the aforementioned manual transmission vehicle gear position recognition component; or, includes the aforementioned manual transmission vehicle gear position visualization system.

[0022] In some embodiments, the vehicle includes a manual transmission mining dump truck.

[0023] The beneficial effects of this utility model are:

[0024] This invention provides a gear position recognition component for manual transmission vehicles, which is installed on the transverse shift lever of the transmission control mechanism. During gear shifting, the transverse shift lever utilizes two degrees of freedom: lateral movement and rotation. Lateral movement selects the gear, while forward and backward rotation engages and reverses. By installing two position sensors on these two degrees of freedom, the gear position can be identified with high precision in real time. The current gear is displayed on the dashboard of multi-gear vehicles, improving driver safety when driving multi-gear vehicles. Furthermore, the design requires minimal structural changes and is low in cost. Attached Figure Description

[0025] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the structure of an existing manual transmission neutral light switch;

[0028] Figure 2 This is a longitudinal sectional view of the manual transmission vehicle gear position recognition component of this utility model;

[0029] Figure 3 This is a schematic diagram of the flat pin connection of this utility model;

[0030] Figure 4 This is a cross-sectional view of the manual transmission vehicle gear position recognition component of this utility model;

[0031] Figure 5 This is a schematic diagram of the gear selector arm connection of this utility model;

[0032] Figure 6 This is a diagram illustrating the vehicle's gear positions.

[0033] The attached diagram is labeled as follows: 1 Neutral switch, 2 Gear shift lever, 3 Gear guide block, 4 Control housing, 5 Gear selection guide block, 6 Gear selection swing arm, 7 Flat pin, 8 Gear shift sensor, 9 Reverse switch, 10 Gear selection position sensor, 11 Pin.

[0034] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0036] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Traditional manual transmission vehicles have a shift control mechanism mounted on top of the gearbox, such as... Figure 1 , Figure 2 As shown in the diagram. (Mining truck block diagram as follows) Figure 6 As shown, there are 8 forward gears and 1 reverse gear, for a total of 9 gears. The operating mechanism is described as follows: the shift lever 2 has two degrees of freedom, rotation around its axis and translation along its axis, thus achieving the 9 gears. The translation of the shift lever 2 along its axis is used for gear selection, allowing selection of up to... Figure 6 The five different neutral positions are shown. The shift lever 2 rotates around its axis to shift forward or backward at the corresponding neutral position. It only has a neutral switch 1 and a reverse switch 9, meaning the vehicle only receives the corresponding switch signal and displays it on the instrument panel when it is in neutral or reverse. Other gear positions are not recognized by the vehicle.

[0039] In order to identify all gears, this utility model provides a manual transmission vehicle gear identification component, which adds a shift sensor and a gear selection position sensor to the original shift control structure to realize real-time gear identification and improve the safety of drivers driving vehicles with multiple gears.

[0040] like Figure 2 As shown, a manual transmission vehicle gear position recognition component includes a gear shift lever 2, a gear selection position sensor 10, and a gear shift sensor 8. The gear selection position sensor 10 and the gear shift sensor 8 are mounted on the control housing 4. The gear shift lever 2 has two degrees of freedom: rotation around an axis and translation along an axis, enabling multiple gear positions. Translation of the gear shift lever 2 along the axis is used for gear selection, while rotation of the gear shift lever 2 around the axis enables forward or backward gear shifting at the corresponding neutral position. The gear selection position sensor 10 is configured to detect the axial translation of the gear shift lever 2. When the gear shift lever 2 has a horizontal displacement, the gear selection position sensor 10 will output a translation signal, with different translation distances corresponding to different neutral positions. The gear shift sensor 8 is configured to detect the rotation of the gear shift lever 2 around an axis. When the gear shift lever 2 has an angular displacement, the gear shift sensor 8 will output a rotation signal, with different rotation directions corresponding to forward or reverse gear at any neutral position.

[0041] The following provides further explanation of the specific connection of the aforementioned shift sensor.

[0042] The shift sensor 8 is rigidly connected to the axial end of the shift lever 2 and can rotate with the shift lever 2.

[0043] Specific solutions, such as Figure 2 , Figure 3 As shown, a flat pin 7 is fixed on the shift sensor 8, and the shift lever 2 has an axial protrusion extending toward the flat pin 7. The outer contour shape of the axial protrusion is the same as the inner hole contour shape of the flat pin 7, and there is a clearance fit between the axial protrusion and the flat pin 7. The flat pin 7 limits the circumferential rotation of the shift lever 2, but does not limit the axial movement.

[0044] Further options, such as Figure 2 As shown, the flat pin 7 has an axially extending waist-shaped hole, and a radially extending pin 11 is fixed on the axial protrusion of the shift lever 2 located in the waist-shaped hole. The pin 11 cooperates with the waist-shaped hole to prevent the shift lever 2 from disengaging from the flat pin 7.

[0045] The following provides further explanation of the specific connection of the gear selection position sensor mentioned above.

[0046] like Figure 2 , Figure 4 , Figure 5As shown, a gear selection guide block 5 is mounted on the gear shift lever 2. The relationship between the two is as follows: when the gear shift lever 2 rotates, the gear selection guide block 5 does not rotate, but when the gear shift lever 2 translates along the axis, it can drive the gear selection guide block 5 to translate. A gear selection swing arm 6 is provided between the gear selection guide block 5 and the gear selection position sensor 10. One end of the gear selection swing arm 6 is fixedly connected to the gear selection position sensor 10 in the length direction, and the other end of the gear selection swing arm 6 is movably connected to the gear selection guide block 5. The gear selection guide block 5 translates along the axis, causing the gear selection swing arm 6 to swing, thereby causing the gear selection position sensor 10 to rotate.

[0047] Further options, such as Figure 4 , Figure 5 As shown, the axial protrusion of the gear selection position sensor 10 is tightly inserted into the flat opening at one end of the gear selection swing arm 6; the other end of the gear selection swing arm 6 is provided with a U-shaped groove, and the radial protrusion of the gear selection guide block 5 is inserted into the U-shaped groove, with a clearance fit between the two.

[0048] Further options, such as Figure 2 As shown, the gear selector block 5 has a waist-shaped hole extending circumferentially, and a radially extending pin 11 is fixed on the gear shift lever 2 located in the waist-shaped hole. The pin 11 cooperates with the waist-shaped hole to enable the two to translate along the axis.

[0049] The following describes the working process of the gear position recognition component for manual transmission vehicles:

[0050] like Figure 2 As shown, the gear selection guide block 5 and the gear shift lever 2 are connected together by pins or similar means. When the gear shift lever 2 rotates, the gear selection guide block 5 does not rotate, but when the gear shift lever 2 translates along its axis, it can drive the gear selection guide block 5 to translate as well. The gear selection guide block 5 has a cylindrical boss that drives the gear selection swing arm 6 to rotate around the rotation axis of the gear selection position sensor 10, causing an angular displacement of the rotation axis of the gear selection position sensor 10, which indicates the selected neutral position. The gear shift lever 2 directly drives the rotation axis of the gear shift sensor 8 through a flat pin 7. When the rotation axis of the gear shift sensor 8 has an angular displacement, the gear shift sensor 8 outputs a rotation signal, which is transmitted to the vehicle's instrument panel. The vehicle's instrument panel uses the signals from the gear selection position sensor 10 and the gear shift sensor 8 to determine the vehicle's actual gear position in real time.

[0051] The manual transmission vehicle gear position visualization system provided by this utility model is described below. The manual transmission vehicle gear position visualization system described below can be referred to in correspondence with the manual transmission vehicle gear position recognition component described above.

[0052] This utility model provides a manual transmission vehicle gear position visualization system, including the aforementioned manual transmission vehicle gear position recognition component and a vehicle instrument panel. The vehicle instrument panel is electrically connected to the gear selection position sensor and the shift sensor to display the vehicle's actual gear position.

[0053] The beneficial effects achieved by the manual transmission vehicle gear position visualization system provided by this utility model are consistent with the beneficial effects achieved by the manual transmission vehicle gear position recognition component provided by this utility model, so they will not be repeated here.

[0054] The vehicle provided by this utility model is described below. The vehicle described below can be referred to in correspondence with the manual transmission vehicle gear position display system described above.

[0055] The present invention provides a vehicle that may include a manual transmission vehicle gear position display system as described in any of the above embodiments.

[0056] The beneficial effects achieved by the vehicle provided by this utility model are consistent with the beneficial effects achieved by the manual transmission vehicle gear position visual system provided by this utility model, so they will not be repeated here.

[0057] It should be noted that the above-mentioned vehicles can be manual transmission mining dump trucks.

[0058] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0059] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0060] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A gear position recognition component for a manual transmission vehicle, characterized in that, include: The gear shift lever has two degrees of freedom: rotation around an axis and translation along an axis, enabling multiple gear positions. The translation of the gear shift lever along the axis is used for gear selection, while the rotation of the gear shift lever around the axis enables shifting forward or backward from the corresponding neutral position. The gear selection position sensor is configured to detect the axial translation of the gear shift lever. When the gear shift lever has a horizontal displacement, the gear selection position sensor will output a translation signal. Different translation distances correspond to different neutral positions. The shift sensor is configured to detect the rotation of the shift lever around an axis. When the shift lever has angular displacement, the shift sensor will output a rotation signal. Different rotation directions correspond to either forward or reverse gear at any neutral position.

2. The manual transmission vehicle gear position recognition component according to claim 1, characterized in that: The shift sensor is rigidly connected to the axial end of the shift lever and can rotate with the shift lever.

3. The manual transmission vehicle gear position recognition component according to claim 2, characterized in that: A flat pin is fixed on the shift sensor, and the shift lever has an axial protrusion extending toward the flat pin. The outer contour shape of the axial protrusion is the same as the inner hole contour shape of the flat pin, and there is a clearance fit between the axial protrusion and the flat pin. The flat pin limits the circumferential rotation of the shift lever, but does not limit its axial movement.

4. The manual transmission vehicle gear position recognition component according to claim 3, characterized in that: The flat pin has an axially extending waist-shaped hole, and a radially extending pin is fixed on the axially protruding part of the shift lever located in the waist-shaped hole. The pin cooperates with the waist-shaped hole to prevent the shift lever from disengaging from the flat pin.

5. A manual transmission vehicle gear position recognition component according to claim 1, characterized in that: The shift lever is fitted with a gear selection guide block. The relationship between the two is as follows: when the shift lever rotates, the gear selection guide block does not rotate, but when the shift lever moves along the axis, it can drive the gear selection guide block to move. A gear selection swing arm is provided between the gear selection guide block and the gear selection position sensor. One end of the gear selection swing arm is fixedly connected to the gear selection position sensor along its length, and the other end of the gear selection swing arm is movably connected to the gear selection guide block. The gear selection guide block moves axially to drive the gear selection swing arm to swing, thereby driving the gear selection position sensor to rotate.

6. The manual transmission vehicle gear position recognition component according to claim 5, characterized in that: The axial protrusion of the gear selection position sensor is tightly inserted into the flat opening at one end of the gear selection swing arm; the other end of the gear selection swing arm is provided with a U-shaped groove, and the radial protrusion of the gear selection guide block is inserted into the U-shaped groove, with a clearance fit between the two.

7. A manual transmission vehicle gear position recognition component according to claim 5, characterized in that: The gear selector guide block is provided with a waist-shaped hole extending circumferentially, and a radially extending pin is fixed on the gear shift lever located in the waist-shaped hole. The pin cooperates with the waist-shaped hole to enable the two to translate along the axis.

8. A manual transmission vehicle gear position display system, characterized in that, include: The manual transmission vehicle gear position recognition component according to any one of claims 1 to 7; The vehicle's instrument panel is electrically connected to the gear selection position sensor and the shift sensor to display the vehicle's actual gear position.

9. A vehicle, characterized in that: It includes the manual transmission vehicle gear position recognition component as described in any one of claims 1 to 7; or, it includes the manual transmission vehicle gear position visualization system as described in claim 8.

10. A vehicle according to claim 9, characterized in that: The vehicles include manual transmission mining dump trucks.

Images