Button type transmission gear shifting control system

Abstract

The invention belongs to the technical field of transmissions, and relates to a key type transmission gear shifting control system. The transverse shifting cylinder drives the transverse gear shifting rod to rotate around the axis, the axial shifting cylinder shifts the gear shifting block to slide on the transverse gear shifting rod in the axial direction, the position of the gear shifting block is accurately and flexibly controlled, and therefore the accuracy of gear shifting operation is ensured, gear shifting errors are effectively reduced, and the gear shifting success rate is increased. Opening and closing of the electromagnetic valve assembly are controlled through the control circuit module, and then actions of the two air cylinders are controlled. The whole gear shifting control system achieves automatic control, a driver only needs to send out a corresponding gear shifting instruction, the system can automatically complete gear shifting operation, the operation burden of the driver is relieved, and driving convenience and comfort are improved. In addition, all the components are integrated in the control shell, the structural layout is reasonable and compact, the occupied space is reduced, and installation and arrangement on a vehicle are facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of transmissions and relates to a button-type transmission shift control system. Background Art

[0002] At present, the gear shifting function of commercial vehicle transmissions usually adopts MT (manual mechanical shift) gearboxes and AMT (automatic mechanical shift) gearboxes. Both have their own advantages and disadvantages in terms of performance, cost and applicable scenarios.

[0003] MT (manual mechanical shift) transmissions typically feature a selector / shift rocker arm connected to a control in the cab via two flexible shafts. The control in the cab drives the selector / shift rocker arm via the flexible shafts to achieve shifting. While this existing structure is simple and easy to operate, it suffers from large shift gaps and low gear accuracy, making it prone to shifting difficulties due to inaccurate gear selection, high gear engagement force, and secondary impact.

[0004] An AMT (Automated Manual Transmission) transmission adds an electronic control system to a traditional manual transmission (MT) to achieve automatic shifting. Its core advantages lie in its high driving comfort and automated clutch and gearshifting, reducing driver workload. It is particularly suitable for frequent shifting scenarios, such as urban logistics. However, current electronic control systems often suffer from complex structures, resulting in high manufacturing costs and difficulty in maintenance.

[0005] In summary, in the existing transmission control system, the purely mechanical control structure has the problem of low gear accuracy, and the electronic control system installed in the AMT transmission has the problem of complex structure. Summary of the Invention

[0006] The purpose of the present invention is to provide a push-button transmission shift control system to solve the technical problems of low gear position accuracy and complex electronic control system structure in a purely mechanical control structure.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: The present invention discloses a push-button transmission shift control system, comprising: Control housing; a transverse shift lever arranged along a first direction, arranged in the operating housing and rotatably connected to the operating housing; A shift knob, slidably sleeved on the transverse shift rod and connected to the transverse shift rod via a spline; A transverse shifting cylinder is fixedly mounted on the operating housing, wherein an output end of the transverse shifting cylinder is connected to the transverse shifting rod via a transmission unit, and is used to drive the transverse shifting rod to rotate around an axis; An axial shifting cylinder is fixed on the operating housing, and an output end of the axial shifting cylinder is connected to the shifting head, and is used to shift the shifting head to slide axially on the transverse shift rod; A solenoid valve assembly, connecting the transverse shifting cylinder and the axial shifting cylinder; The control circuit module is electrically connected to the solenoid valve assembly and is used to control the opening and closing of the solenoid valve assembly.

[0008] Compared with the prior art, the present invention has the following beneficial effects: The present invention achieves precise and flexible control of the shift knob's position by using a transverse shift cylinder to rotate the transverse shift lever about its axis and an axial shift cylinder to slide the shift knob axially on the transverse shift lever. During the shift process, the shift knob can be accurately moved to the position corresponding to the target gear, thereby ensuring the accuracy of the shift operation, effectively reducing shift errors, and improving the success rate of shifts. The control circuit module of the present invention is electrically connected to the solenoid valve assembly, which in turn is connected to the transverse shift cylinder and the axial shift cylinder. The control circuit module controls the opening and closing of the solenoid valve assembly, thereby controlling the movement of the two cylinders. This enables automated control of the entire shift control system. The driver only needs to issue the corresponding shift command, and the system automatically completes the shift operation, reducing the driver's operational burden and improving driving convenience and comfort. Furthermore, all components are integrated into the control housing, resulting in a compact and rational structural layout, reducing space usage and facilitating installation on the vehicle. The integrated circuit and air circuit structure also help reduce manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a front view of the mechanical mechanism of the transmission shifting system of the present invention; Figure 2 It is a left side view of the mechanical mechanism of the transmission shifting system of the present invention; Figure 3 for Figure 1 Cross-sectional view of the AA structure; Figure 4 for Figure 2 Cross-sectional view of the middle BB structure; Figure 5 for Figure 1 Cross-sectional view of the CC structure; Figure 6 for Figure 1 Cross-sectional view of the DD structure; Figure 7 for Figure 1 Cross-sectional view of the EE structure; Figure 8 It is a schematic diagram of the overall structure of the present invention; Figure 9This is a schematic diagram of the circuit connection in the N gear state of the present invention; Figure 10 This is a schematic diagram of the circuit connection in the first gear state of the present invention; Figure 11 This is a schematic diagram of the circuit connection in the second gear state of the present invention; Figure 12 This is a schematic diagram of the circuit connection in the third gear state of the present invention; Figure 13 This is a schematic diagram of the circuit connection of the fourth gear state of the present invention; Figure 14 This is a schematic diagram of the circuit connection in the R gear state of the present invention; Figure 15 This is a schematic diagram of the circuit connection of the high and low gear states of the present invention.

[0010] Among them: 1. Operating housing; 101. First cylinder; 102. Second cylinder; 103. Third cylinder; 104. Fourth cylinder; 105. First piston; 106. Second piston; 107. Third piston; 108. Fourth piston; 109. Fifth piston; 110. Sixth piston; 111. First limiting ring; 112. Second limiting ring; 113. First cylinder cover; 114. Second cylinder cover; 115. Third cylinder cover; 116. Fourth cylinder cover; 117. Third limiting ring; 118. Fourth limiting ring; 2. Transverse shift lever; 201. Convert dial head; 202. First toggle limiting groove; 3. Shift dial head; 301. Second shift limit slot; 4, horizontal shift cylinder; 401, first gear indirect shift head; 402, shift cylinder shaft; 5, axial shift cylinder; 501, second gear selection indirect shift head; 502, gear selection cylinder shaft; 601, N gear position detection switch; 602, first gear position detection switch; 603, second gear position detection switch; 604, third gear position detection switch; 605, fourth gear position detection switch; 606, third / fourth gear position detection switch; 607, N gear position conflict portion; 608, first gear position conflict portion; 609, second gear position conflict portion; 610, third gear position conflict portion; 611, fourth gear position conflict portion; 612, R gear position detection switch 7. Solenoid valve assembly; 701. 3rd / 4th gear solenoid valve; 702. R gear solenoid valve; 703. 1st / 2nd gear solenoid valve; 704. 1st / 3rd / R gear solenoid valve; 705. 2nd / 4th gear solenoid valve; 706. N gear solenoid valve; 707. High / low gear solenoid valve; 708. Auxiliary box high-speed cylinder connection hole; 709. Auxiliary box low-speed cylinder connection hole; 8. Control circuit module; 801. Main switch; 802. Clutch control switch; 803. 1st gear switch; 804. 2nd gear switch; 805. 3rd gear switch; 806. 4th gear switch; 807. R gear switch; 808. High / low gear switches; 809. First normally closed relay ;810, N gear position switch;811, second normally closed relay;812, third / fourth position switch;813, first normally open relay;814, second normally open relay;815, R gear position switch;816, first gear position switch;817, second gear position switch;818, third gear position switch;819, fourth gear position switch;820, vehicle power supply;821, vehicle air source interface;822, first control part;823, first normally closed switch;824, second control part;825, second normally closed switch;826, third control part;827, first normally open switch;828, fourth control part;829, second normally open switch. DETAILED DESCRIPTION

[0011] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0012] It should be noted that the terms "first," "second," and the like in the description of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatus.

[0013] The present invention is described in further detail below with reference to the accompanying drawings: See also Figures 1 to 7 The present invention discloses a push-button transmission shift control system, comprising: Control housing 1, lateral shift lever 2, shift knob 3, lateral shift cylinder 4, axial shift cylinder 5, solenoid valve assembly 7 and control circuit module 8; See also Figure 3 , the transverse shift lever 2 is arranged along the first direction AB, arranged in the operating housing 1 and rotatably connected to the operating housing 1; See also Figure 7 The shift knob 3 is slidably mounted on the transverse shift lever 2 and is connected to the transverse shift lever 2 via a spline; See also Figure 4 The transverse shift cylinder 4 is fixed on the operating housing 1, and the output end of the transverse shift cylinder 4 is connected to the transverse shift rod 2 through a transmission unit, so as to drive the transverse shift rod 2 to rotate around the axis; See also Figure 4 The axial shifting cylinder 5 is fixed on the operating housing 1, and the output end of the axial shifting cylinder 5 is connected to the shifting head 3, which is used to shift the shifting head 3 to slide axially on the transverse shift rod 2; The present invention achieves precise and flexible control of the position of the shift knob 3 by using the transverse shift cylinder 4 to rotate the transverse shift rod 2 about its axis and the axial shift cylinder 5 to slide the shift knob 3 axially on the transverse shift rod 2. During the shifting process, the shift knob 3 can be accurately moved to the position corresponding to the target gear, thereby ensuring the accuracy of the shift operation, effectively reducing shift errors, and improving the success rate of shifting.

[0014] See also Figure 8 , the solenoid valve assembly 7 connects the lateral shifting cylinder 4 and the axial shifting cylinder 5; See also Figure 8 The control circuit module 8 is electrically connected to the solenoid valve assembly 7 and is used to control the opening and closing of the solenoid valve assembly 7.

[0015] The control circuit module 8 of the present invention is electrically connected to the solenoid valve assembly 7, which in turn is connected to the transverse shifting cylinder 4 and the axial shifting cylinder 5. The control circuit module 8 controls the opening and closing of the solenoid valve assembly 7, thereby controlling the movement of the two cylinders. This enables automated control of the entire shifting control system. The driver only needs to issue the corresponding shift command, and the system automatically completes the shift operation, reducing the driver's operational burden and improving driving convenience and comfort. Furthermore, all components are integrated within the control housing 1, resulting in a compact and rational layout, reducing space usage and facilitating vehicle installation. The integrated circuit and air circuit structure also help reduce manufacturing costs.

[0016] In the embodiment of the present invention, the operating housing 1 further includes a base housing, a first cylinder cover 113, a second cylinder cover 114, a third cylinder cover 115 and a fourth cylinder cover 116. The transverse shift lever 2, the shift cylinder shaft 402 and the select cylinder shaft 502 are all slidably arranged on the base housing; the first cylinder cover 113 and the base housing form a first cylinder 101, and a first limiting ring 111 is provided between the first cylinder cover 113 and the base housing; the second cylinder cover 11 4 forms a second cylinder 102 with the base shell, and a third limiting ring 117 is provided between the second cylinder cover 114 and the base shell; the third cylinder cover 115 forms a third cylinder 103 with the base shell, and a second limiting ring 112 is provided between the third cylinder cover 115 and the base shell; the fourth cylinder cover 116 forms a fourth cylinder 104 with the base shell, and a fourth limiting ring 118 is provided between the fourth cylinder cover 116 and the base shell.

[0017] See 4 and Figure 6 In the embodiment of the present invention, the axially shifting cylinder 5 includes: A first cylinder 101 and a second cylinder 102 are provided in the operating housing 1; A first port a1, a second port a2, an eighth port g, and a ninth port h are provided on the operating housing 1 and communicated with the first cylinder 101; A third port b is provided on the operating housing 1 and communicates with the second cylinder 102 ; the first port a1 , the second port a2 , the third port b , the eighth port g and the ninth port h are all connected to the solenoid valve assembly 7 ; The first piston 105 and the second piston 106 are located in the first cylinder 101, the first port a1 and the second port a2 are located on a side of the first piston 105 away from the second piston 106, the eighth port g is located between the first piston 105 and the second piston 106, and the ninth port h is located on a side of the second piston 106 away from the first piston 105; a third piston 107 located in the second cylinder 102 , wherein the second piston 106 is located between the first piston 105 and the third piston 107 ; A gear selection cylinder shaft 502 is arranged along the first direction AB and is slidably disposed in the operating housing 1. One end of the gear selection cylinder shaft 502 is located in the first cylinder body 101, and the other end of the gear selection cylinder shaft 502 is located in the second cylinder body 102. The gear selection cylinder shaft 502 is located between the first piston 105 and the third piston 107, and the second piston 106 is fixed to the gear selection cylinder shaft 502. The gear selection cylinder shaft 502 is fixedly connected to the second gear selection indirect shift head 501, and a second shift limit groove 301 is provided on the shift shift head 3. The end of the second gear selection indirect shift head 501 is located in the second shift limit groove 301, and the end of the second gear selection indirect shift head 501 is clearance-fitted with the second shift limit groove 301. The axial shift cylinder 5 is used to shift the shift shift head 3 to slide axially on the transverse shift rod 2 when driving the second gear selection indirect shift head 501 to move along the first direction AB.

[0018] See 4 and Figure 6 In the embodiment of the present invention, a first limiting ring 111 is provided in the first cylinder 101 , and the limiting ring is located between the first piston 105 and the second piston 106 ; The operating housing 1 is provided with a third / fourth gear position detection switch 606 and an R gear position detection switch 612. The end of the third / fourth gear position detection switch 606 is located in the first cylinder body 101, and the first piston 105 is located between the third / fourth gear position detection switch 606 and the gear selection cylinder shaft 502. The end of the R gear position detection switch 612 is located in the second cylinder body 102, and the third piston 107 is located between the R gear position detection switch 612 and the gear selection cylinder shaft 502.

[0019] Referring to Figure 5, in the embodiment of the present invention, the lateral shifting cylinder 4 includes: A third cylinder 103 and a fourth cylinder 104 are provided in the operating housing 1; A fourth port c, a sixth port e, and a seventh port f are provided on the operating housing 1 and communicated with the third cylinder 103; A fifth port d is provided on the operating housing 1 and communicates with the fourth cylinder 104 , and the fourth port c, the fifth port d, the sixth port e, and the seventh port f are all connected to the solenoid valve assembly 7 ; The fourth piston 108 and the fifth piston 109 are located in the third cylinder 103, the fourth port c is located on the side of the fourth piston 108 away from the fifth piston 109, the sixth port e is located between the fourth piston 108 and the fifth piston 109, and the seventh port f is located on the side of the fifth piston 109 away from the fourth piston 108; a sixth piston 110 located in the fourth cylinder 104 , and the fifth piston 109 located between the fourth piston 108 and the sixth piston 110 ; A shift cylinder shaft 402 is arranged along the second direction CD and is slidably disposed in the operating housing 1. The first direction AB is perpendicular to the second direction CD. One end of the shift cylinder shaft 402 is located in the third cylinder body 103, and the other end of the shift cylinder shaft 402 is located in the fourth cylinder body 104. The shift cylinder shaft 402 is located between the fourth piston 108 and the sixth piston 110. The fifth piston 109 is fixed to the shift cylinder shaft 402. A first indirect shift head 401 is fixedly connected to the shift cylinder shaft 402, a conversion head 201 is provided on the transverse shift lever 2, a first shift limit groove 202 is provided on the conversion head 201, an end of the first indirect shift head 401 is located in the first shift limit groove 202, and the end of the first indirect shift head 401 is clearance-fitted with the first shift limit groove 202. The transverse shift cylinder 4 is used to shift the conversion head 201 and drive the transverse shift lever 2 to rotate around the axis when driving the first indirect shift head 401 to move along the second direction CD.

[0020] In the embodiment of the present invention, a second limiting ring 112 is provided in the third cylinder 103 , and the second limiting ring 112 is located between the fourth piston 108 and the fifth piston 109 .

[0021] In the embodiment of the present invention, the operating housing 1 is provided with an N gear position detection switch 601, a first gear position detection switch 602, a second gear position detection switch 603, a third gear position detection switch 604 and a fourth gear position detection switch 605; The shift knob 3 is provided with an N gear position contact portion 607 , a first gear position contact portion 608 , a second gear position contact portion 609 , a third gear position contact portion 610 and a fourth gear position contact portion 611 ; When the shift dial head 3 is in the N gear position, the N gear position resistance portion 607 triggers the N gear position detection switch 601; when the shift dial head 3 is in the first gear position, the first gear position resistance portion 608 resists the first gear position detection switch 602; when the shift dial head 3 is in the second gear position, the second gear position resistance portion 609 resists the second gear position detection switch 603; when the shift dial head 3 is in the third gear position, the third gear position resistance portion 610 resists the third gear position detection switch 604; and when the shift dial head 3 is in the fourth gear position, the fourth gear position resistance portion 611 resists the fourth gear position detection switch 605; The N gear position abutment 607 is a strip-shaped groove provided on the transverse shift lever 2 and along the axial direction of the transverse shift lever 2 . The groove is connected to the outer surface of the transverse shift lever 2 via a smooth curved surface. The N gear position abutment 607 is located inside the groove.

[0022] See also Figure 8 In the embodiment of the present invention, the solenoid valve assembly 7 includes: a third / fourth gear solenoid valve 701, an R gear solenoid valve 702, a first / second gear solenoid valve 703, a first / third / R gear solenoid valve 704, a second / fourth gear solenoid valve 705, an N gear solenoid valve 706 and a high / low gear solenoid valve 707; The control circuit module 8 includes a clutch control switch 802, a first gear switch 803, a second gear switch 804, a third gear switch 805, a fourth gear switch 806, an R gear switch 807 and a high and low gear switch 808. The clutch control switch 802 is a reset switch, the first gear switch 803, the second gear switch 804, the third gear switch 805, the fourth gear switch 806 and the R gear switch 807 are delayed reset switches, and the high and low gear switch 808 is an in-position switch.

[0023] The clutch control switch 802 is connected to the N gear solenoid valve 706 via the first normally closed relay 809, and the N gear solenoid valve 706 is connected to the fourth port c and the fifth port d. The clutch control switch 802 is also connected to the first / second gear solenoid valve 703 via the N gear position switch 810 and the second normally closed relay 811, and the first / second gear solenoid valve 703 is connected to the first port a1 and the third port b. The first gear switch 803 is connected to the first normally closed relay 809 and the first / third / R gear solenoid valve 704 respectively, and the first / third / R gear solenoid valve 704 is connected to the seventh interface f; The second gear switch 804 is connected to the first normally closed relay 809 and the second / fourth gear solenoid valve 705 respectively, and the second / fourth gear solenoid valve 705 is connected to the sixth interface e; The third-gear switch 805 is connected to the third / fourth-gear solenoid valve 701, the second normally closed relay 811, and the first normally closed relay 809, respectively. The third / fourth-gear solenoid valve 701 is connected to the ninth interface h. The third-gear switch 805 is connected to the first / third / R gear solenoid valve 704 in sequence through the third / fourth position switch 812 and the first normally open relay 813. The four-speed switch 806 is connected to the third / fourth gear solenoid valve 701, the first normally closed relay 809 and the second normally closed relay 811 respectively, and the four-speed switch 806 is connected to the second / fourth gear solenoid valve 705 in turn through the third / fourth position switch 812 and the second normally open relay 814; The R gear switch 807 is connected to the R gear solenoid valve 702, the first normally closed relay 809, and the second normally closed relay 811 respectively. The R gear solenoid valve 702 is connected to the second port a2 and the eighth port g. The R gear switch 807 is also connected to the first / third / R gear solenoid valve 704 via the R gear position switch 815. The high / low gear switch 808 is connected to the high / low gear solenoid valve 707 .

[0024] In the embodiment of the present invention, the first normally closed relay 809 includes a first control part 822 and a first normally closed switch 823. The clutch control switch 802 is connected to the N gear solenoid valve 706 via the first normally closed switch 823. The first gear switch 803, the second gear switch 804, the third gear switch 805, the fourth gear switch 806, and the R gear switch 807 are all connected to the first control part 822. A first diode is provided between the first gear switch 803, the second gear switch 804, the third gear switch 805, the fourth gear switch 806, and the R gear switch 807 and the first control part 822. The second normally closed relay 811 includes a second control part 824 and a second normally closed switch 825. The N gear position switch 810 is connected to the first / second gear solenoid valve 703 through the second normally closed switch 825. The third gear switch 805, the fourth gear switch 806 and the R gear switch 807 are all connected to the second control part 824. A first diode is provided between the third gear switch 805, the fourth gear switch 806 and the R gear switch 807 and the second control part 824.

[0025] The first normally open relay 813 includes a third control part 826 and a first normally open switch 827. The third / fourth position switch 812 is connected to the first / third / R gear solenoid valve 704 via the first normally open switch 827. The third gear switch 805 is also connected to the third control part 826. A second diode is provided between the third gear switch 805 and the third / fourth position switch 812. The third gear switch 805 and the second diode are respectively connected to the second control part 824 and the third control part 826. The third / fourth position switch 812 and the second diode are connected to the third / fourth gear solenoid valve 701. The second normally open relay 814 includes a fourth control part 828 and a second normally open switch 829. The three / fourth position switch 812 is connected to the second / fourth gear solenoid valve 705 through the second normally open switch 829, and the four-gear switch 806 is also connected to the fourth control part 828; a third diode is provided between the four-gear switch 806 and the three / fourth gear solenoid valve 701, and the second control part 824 and the fourth control part 828 are connected between the four-gear switch 806 and the third diode, and the three / fourth position switch 812 is connected between the third diode and the three / fourth gear solenoid valve 701.

[0026] 8 , in the embodiment of the present invention, the main switch 801, a first gear position switch 816, a second gear position switch 817, a third gear position switch 818, and a fourth gear position switch 819 are further included. The first gear position switch 816, the second gear position switch 817, the third gear position switch 818, and the fourth gear position switch 819 are all connected to display lights. The main switch 801 is an in-position switch. The main switch 801 is connected to the clutch control switch 802, the first gear switch 803, the second gear switch 804, the third gear switch 805, the fourth gear switch 806, the R gear switch 807 and the high and low gear switches 808 respectively; The main switch 801 is connected to a vehicle power supply 820 .

[0027] 8 , in the embodiment of the present invention, a vehicle air source interface 821 is further included, wherein the vehicle air source interface 821 is connected to the third / fourth gear solenoid valve 701, the R gear solenoid valve 702, the first / second gear solenoid valve 703, the first / third / R gear solenoid valve 704, the second / fourth gear solenoid valve 705, the N gear solenoid valve 706, and the high / low gear solenoid valve 707 respectively; The high / low gear solenoid valve 707 is provided with a connecting hole 708 for the auxiliary tank high gear cylinder and a connecting hole 709 for the auxiliary tank low gear cylinder.

[0028] The present invention adds a button and a gear display light to the gear position in the cab, eliminates the traditional car shift hand ball and flexible shaft, and realizes the transmission gear switching function through the button. The shifting process of the present invention is as follows: See also Figure 9 , the N gear operation process is as follows: The main switch 801 is closed, the clutch pedal is depressed, the clutch control switch 802 is closed, the N gear solenoid valve 706 is energized, the fourth port c and the fifth port d are simultaneously ventilated, the fourth piston 108 and the sixth piston 110 act on the shift cylinder shaft 402, the shift cylinder shaft 402 drives the first indirect shift head 401 to move, the first indirect shift head 401 acts on the transfer head 201, the transfer head 201 drives the transverse shift lever 2 and the shift head 3 to rotate, and the shift head 3 is turned to the neutral position; The transverse shift lever 2 rotates until it no longer acts on the N gear position detection switch 601, the N gear position switch 810 is closed, the first / second gear solenoid valve 703 is energized, the first interface a1 and the third interface b are ventilated at the same time, and the second interface a2 is closed. The first piston 105 and the third piston 107 act on the gear selection cylinder shaft 502, and the gear selection cylinder shaft 502 drives the second gear selection indirect shift head 501. The second gear selection indirect shift head 501 acts on the shift head 3, and the shift head 3 moves on the transverse shift lever 2 to between the first gear and the second gear, and the shift head 3 is located at the corresponding position of the N gear.

[0029] See also Figure 10 , the first gear operation process is as follows: After the N gear is operated, the first gear button is pressed, the first gear switch 803 is closed, the first normally closed relay 809 is energized, the N gear solenoid valve 706 is de-energized, the fourth interface c and the fifth interface d are simultaneously de-energized, the first / third / R gear solenoid valve 704 is energized, the seventh interface f is ventilated, the fifth piston 109 drives the shift cylinder shaft 402, the shift cylinder shaft 402 drives the first shift indirect shift head 401 to move, the first shift indirect shift head 401 acts on the conversion head 201, the conversion head 201 drives the transverse shift lever 2 and the shift head 3 to rotate, and the shift head 3 is turned to the first gear; the transverse shift lever 2 rotates, acts on the N gear position detection switch 601, the N gear position switch 810 is disconnected, and the N gear is exited. At this time, the shift head 3 is in the position corresponding to the first gear, the transmission is in the first gear state, the shift head 3 acts on the first gear position detection switch 602, the first gear position switch 816 is closed, and the first gear position indicator light is on.

[0030] See also Figure 11 , the second gear operation process is as follows: Under the conditions of operation step 1, the second gear button is pressed, the second gear switch 804 is closed, the first normally closed relay 809 is energized, the N gear solenoid valve 706 is de-energized, the fourth interface c and the fifth interface d are simultaneously de-energized, the second / fourth gear solenoid valve 705 is energized, and the sixth interface e is ventilated at the same time. The fifth piston 109 drives the shift cylinder shaft 402, and the shift cylinder shaft 402 drives the first shift indirect shift head 401 to move. The first shift indirect shift head 401 acts on the conversion head 201, and the conversion head 201 drives the transverse shift lever 2 and the shift head 3 to rotate, and the shift head 3 is rotated to the second gear position; the transverse shift lever 2 rotates, acting on the N gear position detection switch 601, and the N gear position switch 810 is disconnected, exiting the N gear. At this time, the shift head 3 is in the position corresponding to the second gear, and the transmission is in the second gear state. The shift head 3 acts on the second gear position detection switch 603, the second gear position switch 817 is closed, and the second gear position indicator light is on.

[0031] See also Figure 12 , the three-gear operation process is as follows: After the N gear is operated, the third gear button is pressed, the third gear switch 805 is closed, the first normally closed relay 809 and the second normally closed relay 811 are energized, the N gear solenoid valve 706 and the first / second gear solenoid valve 703 are de-energized, and the first interface a1, the third interface b, the fourth interface c and the fifth interface d are simultaneously de-energized; the first normally open relay 813 is energized, the third / fourth gear solenoid valve 701 is energized, the ninth interface h is ventilated, the second piston 106 drives the gear selection cylinder shaft 502, the gear selection cylinder shaft 502 drives the second gear selection indirect shift head 501, the second gear selection indirect shift head 501 acts on the shift shift head 3, and the shift shift head 3 moves between the third gear and the fourth gear; At the same time, the gear selection cylinder shaft 502 acts on the first piston 105, the first piston 105 acts on the third / fourth gear position detection switch 606, the third / fourth position switch 812 is closed, the first / third / R gear solenoid valve 704 is energized, the seventh interface f is ventilated, the fifth piston 109 drives the shift cylinder shaft 402, the shift cylinder shaft 402 drives the first shift indirect shift head 401 to move, the first shift indirect shift head 401 acts on the conversion head 201, the conversion head 201 drives the transverse shift lever 2 and the shift head 3 to rotate, and the shift head 3 is turned to the third gear; the transverse shift lever 2 rotates, acts on the N gear position detection switch 601, the N gear position switch 810 is disconnected, and the N gear is exited. At this time, the shift head 3 is in the corresponding position of the third gear, the transmission is in the third gear state, the shift head 3 acts on the third gear position detection switch 604, the third gear position switch 818 is closed, and the third gear position indicator light is on.

[0032] See also Figure 13 , the four-gear operation process is as follows: After the N gear is operated, the fourth gear button is pressed, the fourth gear switch 806 is closed, the first normally closed relay 809 and the second normally closed relay 811 are energized, the N gear solenoid valve 706 and the first / second gear solenoid valve 703 are de-energized, and the first interface a1, the third interface b, the fourth interface c and the fifth interface d are simultaneously de-energized; the second normally open relay 814 is energized, the third / fourth gear solenoid valve 701 is energized, the ninth interface h is ventilated, the second piston 106 drives the gear selection cylinder shaft 502, the gear selection cylinder shaft 502 drives the second gear selection indirect shift head 501, the second gear selection indirect shift head 501 acts on the shift shift head 3, and the shift shift head 3 moves between the third gear and the fourth gear; At the same time, the gear selection cylinder shaft 502 acts on the first piston 105, the first piston 105 acts on the third / fourth gear position detection switch 606, the third / fourth position switch 812 is closed, the second / fourth gear solenoid valve 705 is energized, and the sixth interface e is ventilated at the same time. The fifth piston 109 drives the shift cylinder shaft 402, the shift cylinder shaft 402 drives the first shift indirect shift head 401 to move, the first shift indirect shift head 401 acts on the conversion head 201, the conversion head 201 drives the transverse shift lever 2 and the shift head 3 to rotate, and the shift head 3 is turned to the fourth gear; the transverse shift lever 2 rotates and acts on the N gear position detection switch 601, the N gear position switch 810 is disconnected, and the N gear is exited. At this time, the shift head 3 is in the corresponding position of the fourth gear, and the transmission is in the fourth gear state. The shift head 3 rotates and acts on the fourth gear position detection switch 605, the fourth gear position switch 819 is closed, and the fourth gear position indicator light is on.

[0033] See also Figure 14 , the R gear operation process is as follows: After the N gear is operated, the R gear button is pressed, the R gear switch 807 is closed, the first normally closed relay 809 and the second normally closed relay 811 are energized, the N gear solenoid valve 706 and the first / second gear solenoid valve 703 are de-energized, and the first interface a1, the third interface b, the fourth interface c and the fifth interface d are simultaneously de-energized; the R gear solenoid valve 702 is energized, and the eighth interface g and the second interface a2 are simultaneously ventilated. At this time, the interface a1 is closed, the second piston 106 drives the gear selection cylinder shaft 502, and the gear selection cylinder shaft 502 drives the second gear selection indirect shift head 501, and the second gear selection indirect shift head 501 acts on the shift shift head 3, and the shift shift head 3 moves in the first direction AB to the R gear pre-shift position; The shift cylinder shaft 502 acts on the third piston 107, the third piston 107 acts on the R gear position detection switch 612, the R gear position switch 815 is closed, the one / three / R gear solenoid valve 704 is energized, the seventh interface f is ventilated, the fifth piston 109 drives the shift cylinder shaft 402, the shift cylinder shaft 402 drives the first shift indirect shift head 401 to move, the first shift indirect shift head 401 acts on the conversion head 201, the conversion head 201 drives the transverse shift lever 2 and the shift head 3 to rotate, and the shift head 3 rotates from the R gear pre-shift position to the R gear position; the transverse shift lever 2 rotates and acts on the N gear position detection switch 601, the N gear position switch 810 is disconnected, the shift head 3 is located at the corresponding position of the R gear, and the transmission is in the R gear state.

[0034] See also Figure 15 After the N gear is operated, press the high / low gear button, the high / low gear switch 808 is closed, and the high / low gear solenoid valve 707 is energized to realize the high / low speed switching of the transmission.

[0035] After completing the gear shift, release the clutch pedal first and then turn off the main switch.

[0036] In summary, the present invention includes a button, a gear indicator light, a clutch control switch 802, a control circuit module 8, an air pipe assembly, a relay, a solenoid valve assembly 7, and a shift mechanism. The button is integrated into the steering wheel of the cab; the gear indicator light is integrated into the button or the instrument panel; the clutch control switch 802 is mounted on the clutch pedal. Pressing the clutch pedal closes the clutch control switch 802, and releasing the clutch pedal opens the clutch control switch 802. The relay is installed in the central control box of the cab. The solenoid valve assembly 7 has a main air intake port that connects to the vehicle's air supply. The solenoid valve assembly 7 and the shift mechanism are assembled on the transmission; the air pipe assembly connects the solenoid valve assembly 7 and the shift mechanism; and the control circuit module 8 connects the button, gear indicator light, relay, clutch control switch 802, solenoid valve assembly 7, and the shift mechanism. The button controls the on / off of the solenoid valve assembly 7 via the control circuit module 8 and the relay. The solenoid valve assembly 7 controls the shift mechanism via the air pipe assembly to achieve transmission gear shifting.

[0037] The above content is only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A push-button transmission shift control system, characterized in that: include: Operating housing (1); a transverse shift lever (2) arranged along a first direction (AB), arranged in the operating housing (1) and rotatably connected to the operating housing (1); A shift knob (3) is slidably sleeved on the transverse shift lever (2) and connected to the transverse shift lever (2) via a spline; A transverse shifting cylinder (4) is fixedly mounted on the operating housing (1); an output end of the transverse shifting cylinder (4) is connected to the transverse shifting rod (2) via a transmission unit, and is used to drive the transverse shifting rod (2) to rotate around an axis; An axially shifting cylinder (5) is fixedly mounted on the operating housing (1), and an output end of the axially shifting cylinder (5) is connected to the shifting head (3) for shifting the shifting head (3) to slide axially on the transverse shifting rod (2); A solenoid valve assembly (7) connecting the lateral shifting cylinder (4) and the axial shifting cylinder (5); A control circuit module (8) is electrically connected to the solenoid valve assembly (7) and is used to control the opening and closing of the solenoid valve assembly (7).

2. A push-button transmission shift control system according to claim 1, characterized in that: The axially shifting cylinder (5) comprises: A first cylinder (101) and a second cylinder (102) are provided in the operating housing (1); A first interface (a1), a second interface (a2), an eighth interface (g), and a ninth interface (h) are provided on the operating housing (1) and communicate with the first cylinder (101); A third interface (b) is provided on the operating housing (1) and is in communication with the second cylinder (102); the first interface (a1), the second interface (a2), the third interface (b), the eighth interface (g), and the ninth interface (h) are all connected to the solenoid valve assembly (7); A first piston (105) and a second piston (106) are located in the first cylinder (101), the first interface (a1) and the second interface (a2) are located on a side of the first piston (105) away from the second piston (106), the eighth interface (g) is located between the first piston (105) and the second piston (106), and the ninth interface (h) is located on a side of the second piston (106) away from the first piston (105); a third piston (107) located in the second cylinder (102), the second piston (106) being located between the first piston (105) and the third piston (107); A gear selection cylinder shaft (502) is arranged along a first direction (AB) and is slidably disposed in the operating housing (1). One end of the gear selection cylinder shaft (502) is located in the first cylinder body (101), and the other end of the gear selection cylinder shaft (502) is located in the second cylinder body (102). The gear selection cylinder shaft (502) is located between the first piston (105) and the third piston (107), and the second piston (106) is fixed on the gear selection cylinder shaft (502). The shift cylinder shaft (502) is fixedly connected to a second shift indirect shift head (501); a second shift limit groove (301) is provided on the shift shift head (3); an end portion of the second shift indirect shift head (501) is located in the second shift limit groove (301); the end portion of the second shift indirect shift head (501) and the second shift limit groove (301) are clearance-matched; the axial shift cylinder (5) is used to shift the shift shift head (3) to slide axially on the transverse shift rod (2) when driving the second shift indirect shift head (501) to move in a first direction (AB).

3. A push-button transmission shift control system according to claim 2, characterized in that: A first limiting ring (111) is provided in the first cylinder (101), and the limiting ring is located between the first piston (105) and the second piston (106); The operating housing (1) is provided with a third / fourth gear position detection switch (606) and an R gear position detection switch (612), the end of the third / fourth gear position detection switch (606) is located in the first cylinder body (101), the first piston (105) is located between the third / fourth gear position detection switch (606) and the gear selection cylinder shaft (502), the end of the R gear position detection switch (612) is located in the second cylinder body (102), and the third piston (107) is located between the R gear position detection switch (612) and the gear selection cylinder shaft (502).

4. A push-button transmission shift control system according to claim 2, characterized in that: The lateral shifting cylinder (4) comprises: A third cylinder (103) and a fourth cylinder (104) are provided in the operating housing (1); A fourth interface (c), a sixth interface (e), and a seventh interface (f) provided on the operating housing (1) and communicating with the third cylinder (103); A fifth interface (d) is provided on the operating housing (1) and is in communication with the fourth cylinder (104); the fourth interface (c), the fifth interface (d), the sixth interface (e), and the seventh interface (f) are all connected to the solenoid valve assembly (7); A fourth piston (108) and a fifth piston (109) are located in the third cylinder (103); the fourth interface (c) is located on a side of the fourth piston (108) away from the fifth piston (109); the sixth interface (e) is located between the fourth piston (108) and the fifth piston (109); and the seventh interface (f) is located on a side of the fifth piston (109) away from the fourth piston (108); a sixth piston (110) located in the fourth cylinder (104), the fifth piston (109) being located between the fourth piston (108) and the sixth piston (110); A shift cylinder shaft (402) is arranged along a second direction (CD) and is slidably disposed in the operating housing (1). The first direction (AB) is perpendicular to the second direction (CD). One end of the shift cylinder shaft (402) is located in the third cylinder body (103), and the other end of the shift cylinder shaft (402) is located in the fourth cylinder body (104). The shift cylinder shaft (402) is located between the fourth piston (108) and the sixth piston (110). The fifth piston (109) is fixed on the shift cylinder shaft (402). A first shift indirect shift head (401) is fixedly connected to the shift cylinder shaft (402), a conversion head (201) is provided on the transverse shift lever (2), a first shift limit groove (202) is provided on the conversion head (201), an end of the first shift indirect shift head (401) is located in the first shift limit groove (202), and the end of the first shift indirect shift head (401) and the first shift limit groove (202) are clearance-matched. The transverse shift cylinder (4) is used to shift the conversion head (201) and drive the transverse shift lever (2) to rotate around the axis when driving the first shift indirect shift head (401) to move along the second direction (CD).

5. A push-button transmission shift control system according to claim 4, characterized in that: A second limiting ring (112) is provided in the third cylinder (103), and the second limiting ring (112) is located between the fourth piston (108) and the fifth piston (109).

6. A push-button transmission shift control system according to claim 4, characterized in that: The operating housing (1) is provided with an N gear position detection switch (601), a first gear position detection switch (602), a second gear position detection switch (603), a third gear position detection switch (604) and a fourth gear position detection switch (605); The transverse shift lever (2) is provided with an N gear position contact portion (607), and the shift dial head (3) is provided with a first gear position contact portion (608), a second gear position contact portion (609), a third gear position contact portion (610), and a fourth gear position contact portion (611); When the lateral shift lever (2) is in the N gear position, the N gear position contact portion (607) triggers the N gear position detection switch (601); when the shift dial head (3) is in the first gear position, the first gear position contact portion (608) contacts the first gear position detection switch (602); when the shift dial head (3) is in the second gear position, the second gear position contact portion (609) contacts the second gear position detection switch (603); when the shift dial head (3) is in the third gear position, the third gear position contact portion (610) contacts the third gear position detection switch (604); and when the shift dial head (3) is in the fourth gear position, the fourth gear position contact portion (611) contacts the fourth gear position detection switch (605); The N gear position abutment portion (607) is a strip-shaped groove provided on the transverse gear shift rod (2) and along the axial direction of the transverse gear shift rod (2); the groove is connected to the outer surface of the transverse gear shift rod (2) via a smooth curved surface; the N gear position abutment portion (607) is located inside the groove.

7. A push-button transmission shift control system according to claim 4, characterized in that: The solenoid valve assembly (7) includes: a third / fourth gear solenoid valve (701), an R gear solenoid valve (702), a first / second gear solenoid valve (703), a first / third / R gear solenoid valve (704), a second / fourth gear solenoid valve (705), an N gear solenoid valve (706), and a high / low gear solenoid valve (707); The control circuit module (8) includes a clutch control switch (802), a first gear switch (803), a second gear switch (804), a third gear switch (805), a fourth gear switch (806), an R gear switch (807), and a high and low gear switch (808); The clutch control switch (802) is connected to the N gear solenoid valve (706) via the first normally closed relay (809), and the N gear solenoid valve (706) is connected to the fourth interface (c) and the fifth interface (d). The clutch control switch (802) is also connected to the first / second gear solenoid valve (703) via the N gear position switch (810) and the second normally closed relay (811) in sequence, and the first / second gear solenoid valve (703) is connected to the first interface (a1) and the third interface (b). The first gear switch (803) is connected to the first normally closed relay (809) and the first / third / R gear solenoid valve (704) respectively, and the first / third / R gear solenoid valve (704) is connected to the seventh interface (f); The second-gear switch (804) is respectively connected to the first normally closed relay (809) and the second / fourth-gear solenoid valve (705), and the second / fourth-gear solenoid valve (705) is connected to the sixth interface (e); The three-speed switch (805) is respectively connected to the third / fourth gear solenoid valve (701), the second normally closed relay (811) and the first normally closed relay (809); the third / fourth gear solenoid valve (701) is connected to the ninth interface (h); the three-speed switch (805) is sequentially connected to the first / third / R gear solenoid valve (704) via the third / fourth position switch (812) and the first normally open relay (813); The four-speed switch (806) is respectively connected to the third / fourth-speed solenoid valve (701), the first normally closed relay (809) and the second normally closed relay (811), and the four-speed switch (806) is sequentially connected to the second / fourth-speed solenoid valve (705) via the third / fourth-speed position switch (812) and the second normally open relay (814); The R gear switch (807) is connected to the R gear solenoid valve (702), the first normally closed relay (809) and the second normally closed relay (811) respectively; the R gear solenoid valve (702) is connected to the second interface (a2) and the eighth interface (g); the R gear switch (807) is also connected to the first / third / R gear solenoid valve (704) via the R gear position switch (815); The high / low gear switch (808) is connected to the high / low gear solenoid valve (707).

8. A push-button transmission shift control system according to claim 7, characterized in that: The first normally closed relay (809) includes a first control part (822) and a first normally closed switch (823); the clutch control switch (802) is connected to the N gear solenoid valve (706) via the first normally closed switch (823); the first gear switch (803), the second gear switch (804), the third gear switch (805), the fourth gear switch (806), and the R gear switch (807) are all connected to the first control part (822); and a first diode is provided between the first gear switch (803), the second gear switch (804), the third gear switch (805), the fourth gear switch (806), and the R gear switch (807) and the first control part (822); The second normally closed relay (811) includes a second control part (824) and a second normally closed switch (825); the N gear position switch (810) is connected to the first / second gear solenoid valve (703) via the second normally closed switch (825); the third gear switch (805), the fourth gear switch (806), and the R gear switch (807) are all connected to the second control part (824); and a first diode is provided between the third gear switch (805), the fourth gear switch (806), and the R gear switch (807) and the second control part (824); The first normally open relay (813) includes a third control part (826) and a first normally open switch (827); the third / fourth position switch (812) is connected to the first / third / R gear solenoid valve (704) via the first normally open switch (827); the third gear switch (805) is also connected to the third control part (826); a second diode is provided between the third gear switch (805) and the third / fourth position switch (812); the third gear switch (805) and the second diode are respectively connected to the second control part (824) and the third control part (826); the third / fourth position switch (812) and the second diode are connected to the third / fourth gear solenoid valve (701); The second normally open relay (814) includes a fourth control part (828) and a second normally open switch (829); the third / fourth position switch (812) is connected to the second / fourth gear solenoid valve (705) via the second normally open switch (829); the fourth gear switch (806) is also connected to the fourth control part (828); a third diode is provided between the fourth gear switch (806) and the third / fourth gear solenoid valve (701); the second control part (824) and the fourth control part (828) are connected between the fourth gear switch (806) and the third diode; and the third / fourth position switch (812) is connected between the third diode and the third / fourth gear solenoid valve (701).

9. The push-button transmission shift control system according to claim 7, characterized in that: It also includes a main switch (801), a first-gear position switch (816), a second-gear position switch (817), a third-gear position switch (818), and a fourth-gear position switch (819), wherein the first-gear position switch (816), the second-gear position switch (817), the third-gear position switch (818), and the fourth-gear position switch (819) are all connected to a display light; The main switch (801) is respectively connected to the clutch control switch (802), the first gear switch (803), the second gear switch (804), the third gear switch (805), the fourth gear switch (806), the R gear switch (807) and the high and low gear switches (808); The main switch (801) is connected to a vehicle power supply (820).

10. The push-button transmission shift control system according to claim 7, characterized in that: It also includes a vehicle air source interface (821), wherein the vehicle air source interface (821) is connected to the third / fourth gear solenoid valve (701), the R gear solenoid valve (702), the first / second gear solenoid valve (703), the first / third / R gear solenoid valve (704), the second / fourth gear solenoid valve (705), the N gear solenoid valve (706) and the high / low gear solenoid valve (707); The high / low gear solenoid valve (707) is provided with an auxiliary box high gear cylinder connection hole (708) and an auxiliary box low gear cylinder connection hole (709).

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