A passenger door for a passenger vehicle

Abstract

The utility model discloses belong to passenger car technical field, concretely is a kind of passenger car passenger door, including the passenger car body with the passenger drop-off and pick-up passage, the middle part of the passenger drop-off and pick-up passage is equipped with wheelchair lifting mechanism, the passenger car body is fixedly installed with several seats, the inner chamber left side of the passenger drop-off and pick-up passage is equipped with big door by rotating assembly, the inner chamber right side of the passenger drop-off and pick-up passage is equipped with small door by rotating assembly, the seat in small door inboard is arranged in passenger car body by connecting assembly, the utility model satisfies both the size of the required passage of passenger and wheelchair lifting mechanism, and guarantee seat arrangement maximization, improve product market competitiveness.

Description

Technical Field

[0001] This utility model relates to the field of bus technology, specifically a bus passenger door. Background Technology

[0002] A passenger bus is a road motor vehicle specifically designed to carry passengers (including the driver) and personal luggage / goods, equipped with fixed passenger seats, safety protection systems, and comfort features. As domestic passenger buses rapidly expand into the European market, the European market has placed higher demands on the practicality, compatibility, and compliance of passenger buses, especially regarding the convenience of travel for special groups and the optimization of interior space utilization.

[0003] Currently, buses equipped with wheelchair lifting mechanisms generally face a core technical challenge: to ensure load-bearing stability, the wheelchair lifting mechanism is relatively wide, requiring significant doorway space, while the bus's interior seating arrangement needs to maximize passenger capacity, creating a serious space conflict. Existing technologies primarily employ two design schemes for bus passenger doors: First, designing two passenger doors of equal size that open and close simultaneously. While this meets the size requirements for passenger boarding and alighting, the space required for simultaneous opening of both doors severely restricts the seating area, reducing the number of seats and lowering the bus's passenger carrying efficiency. Second, using a single-door design, while allowing for more seating space, results in a passageway width that fails to meet European regulations for passenger boarding and alighting, and is completely unsuitable for the deployment and use of wheelchair lifting mechanisms, causing inconvenience for special needs groups and hindering the product's entry into the mainstream European market. Therefore, this invention proposes a new type of bus passenger door. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A passenger door for a bus includes a bus body with a passenger boarding and alighting passage. A wheelchair lifting mechanism is provided in the middle of the passenger boarding and alighting passage. Several seats are fixedly installed in the bus body. A large door is provided on the left side of the inner cavity of the passenger boarding and alighting passage via a rotating assembly. A small door is provided on the right side of the inner cavity of the passenger boarding and alighting passage via a rotating assembly. The seats located inside the small door are provided in the bus body via a connecting assembly.

[0006] In a preferred embodiment of the passenger door for a bus described in this utility model, the rotating assembly includes:

[0007] Pneumatic motors are fixedly installed on both sides of the inner cavity of the passenger boarding and alighting passage;

[0008] A rotating shaft, which is fixedly mounted on the output shaft of a pneumatic motor;

[0009] A connecting rod is fixedly installed on the pivot, and the connecting rod is also fixedly installed on the inner side of both the main door and the small door.

[0010] In a preferred embodiment of the passenger door for a bus described in this utility model, the connecting assembly includes:

[0011] A base, which is fixedly installed in the bus body;

[0012] The base is rotatably connected to the top right side of the upright, and the seat is fixedly installed on the top of the upright;

[0013] A cylinder is rotatably connected to the top left side of the base, and the cylinder's push rod is rotatably connected to the top of the upright.

[0014] As a preferred embodiment of the passenger door for a bus described in this utility model, the wheelchair lifting mechanism includes:

[0015] A base plate, which is fixedly installed in the middle of the passenger boarding and alighting passage;

[0016] The chassis is fixedly mounted on the top of the base plate;

[0017] A top plate, which is located directly above the bottom plate and can contact the top of the chassis;

[0018] A support plate, the top of which is hinged to the support plate.

[0019] As a preferred embodiment of the passenger door for a bus described in this utility model, the wheelchair lifting mechanism further includes:

[0020] Side plates: Several sets of two side plates are fixedly installed on both sides of the opposite ends of the bottom plate and the top plate;

[0021] The screw is rotatably connected between two sets of side plates via bearings, and the thread directions at both ends of the screw are set to be opposite starting from the middle.

[0022] The slider is threaded to both ends of the screw;

[0023] The X-shaped rod is positioned between four sets of sliders.

[0024] As a preferred embodiment of the passenger door for a bus described in this utility model, the wheelchair lifting mechanism further includes:

[0025] A guide rod is fixedly installed between two sets of side plates, and a slider is slidably connected to the guide rod.

[0026] A stepper motor is fixedly mounted on the side plate located on the left side, and the output shaft of the stepper motor is fixedly connected to the screw.

[0027] In a preferred embodiment of the passenger door of a bus described in this utility model, the X-shaped rod is composed of two sets of movable rods arranged in an X shape, with the middle parts of the two sets of movable rods rotatably connected together, and the ends of the movable rods rotatably connected to the slider.

[0028] As a preferred embodiment of the passenger door for a bus described in this utility model, it further includes:

[0029] A control system used to control rotating components and wheelchair lifting mechanisms;

[0030] The control system includes:

[0031] A first instrument module that controls the rotating assembly connected to the gate 11;

[0032] A second instrument module that controls the rotating assembly connected to the small door 12;

[0033] A third instrument module that controls the wheelchair lifting mechanism;

[0034] The first instrument module is connected to K1, K2, K3, RL1, and RL2, with K1 and K3 connected in series;

[0035] The second instrument module is connected to K1, K2, K3, two sets of K4, K5, K6, RL3, and RL4, and K1, K3, K4, K5 and K2, K4, K6 are connected in series respectively;

[0036] The wire between the first instrument module and RL1 is connected to the wire between the second instrument module and RL3, and the wire between the first instrument module and RL2 is connected to the wire between the second instrument module and RL4;

[0037] The output terminal of the third instrument module is connected in series with K7 and RL6, and RL6 is connected to the disabled pedal switch used to control the wheelchair lifting mechanism. K6 is connected between the input terminal of the third instrument module and the output terminal of the disabled pedal switch. The disabled pedal switch is also connected with K8 and RL5.

[0038] Compared with existing technologies:

[0039] Previously, passenger doors were designed to be the same size, opening and closing simultaneously. While this met the requirements for passenger boarding and alighting, it limited the number of seats. By designing passenger doors as separate large and small doors, only the large door is opened under normal circumstances to meet passenger boarding requirements. When using the wheelchair lifting mechanism, the folding seats in front of the passenger doors are lifted, allowing both large and small doors to open simultaneously, providing the space required for the wheelchair lifting mechanism to operate normally. This design satisfies the boarding requirements for both passengers and the wheelchair lifting mechanism while maximizing seating arrangement, thus enhancing the product's market competitiveness. Attached Figure Description

[0040] Figure 1 This is a front view schematic diagram of the passenger door of this utility model;

[0041] Figure 2 This is a top view of the passenger door of this utility model;

[0042] Figure 3 This is a schematic diagram of the normal structure of the seat of this utility model;

[0043] Figure 4 This is a schematic diagram of the seat in the lifted state of this utility model;

[0044] Figure 5 This is a front view schematic diagram of the wheelchair lifting mechanism of this utility model;

[0045] Figure 6 This is a side view of the wheelchair lifting mechanism of this utility model;

[0046] Figure 7 This is a schematic diagram of the X-shaped rod structure of this utility model;

[0047] Figure 8 This is a schematic diagram of the control system of this utility model.

[0048] In the diagram: Bus body 10, main door 11, side door 12, pneumatic motor 20, rotating shaft 21, connecting rod 22, seat 30, base 40, upright 41, cylinder 42, bottom plate 50, chassis 51, top plate 52, bearing plate 53, side plate 54, screw 55, slider 56, guide rod 57, stepper motor 58, X-shaped rod 59. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0050] This utility model provides a passenger door for a bus. Please refer to [link / reference]. Figures 1-8The bus body 10 includes a passenger boarding and alighting passage. A wheelchair lifting mechanism is provided in the middle of the passenger boarding and alighting passage. Several seats 30 are fixedly installed in the passenger body 10. A door 11 is provided on the left side of the inner cavity of the passenger boarding and alighting passage via a rotating assembly. A small door 12 is provided on the right side of the inner cavity of the passenger boarding and alighting passage via a rotating assembly. The seats 30 located inside the small door 12 are provided in the passenger body 10 via a connecting assembly.

[0051] The rotating assembly includes a pneumatic motor 20, a rotating shaft 21, and a connecting rod 22. Pneumatic motors 20 are fixedly installed on both sides of the inner cavity of the passenger boarding / alighting passage. The pneumatic motors 20 are powered by the bus's onboard power supply, and their operating status is controlled by the corresponding instrument module in the control system (the pneumatic motor 20 corresponding to the main door 11 is controlled by the first instrument module, and the pneumatic motor 20 corresponding to the side door 12 is controlled by the second instrument module). The rotating shaft 21 is fixedly mounted on the output shaft of the pneumatic motor 20 via a flat key to ensure stable power transmission. The connecting rod 22 is fixedly mounted on the rotating shaft 21 by welding, and the inner sides of both the main door 11 and the side door 12 are fixedly connected to the connecting rod 22 via bolts. This allows the main door 11 or the side door 12 to rotate and open / close synchronously via the connecting rod 22 when the pneumatic motor 20 drives the rotating shaft 21 to rotate. Through the synergistic effect of the rotating assembly, the main door 11 and the side door 12 can be opened and closed independently or synchronously and stably, eliminating the need for manual pushing of the doors and improving operational convenience.

[0052] The connecting assembly includes a base 40, a vertical rod 41, and a cylinder 42. The base 40 is fixedly installed in the floor structure of the bus body 10 by expansion bolts to ensure the overall structural load-bearing stability. The top right side of the base 40 is hinged to the vertical rod 41, and the top of the vertical rod 41 is bolted to the seat 30, allowing the seat 30 to rotate around the connection point between the vertical rod 41 and the base 40. The top left side of the base 40 is hinged to the cylinder 42, which is supplied with air from the bus's onboard air source. Its extension and retraction are controlled by the second instrument module in conjunction with the K5 switch. The push rod end of the cylinder 42 is rotatably connected to the top of the vertical rod 41 via a ball joint. The ball joint connection eliminates lateral forces during the extension and retraction of the push rod, preventing component wear. Through the structural design of the connecting assembly, the seat 30 inside the small door 12 can be quickly flipped and stored, freeing up space for opening the small door without disassembling the seat, thus meeting the usage requirements of the wheelchair lifting mechanism.

[0053] The wheelchair lifting mechanism includes: a base plate 50, a housing 51, a top plate 52, a support plate 53, side plates 54, a screw 55, a slider 56, a guide rod 57, a stepper motor 58, and an X-shaped rod 59. The base plate 50 is welded and fixedly installed on the floor in the middle of the passenger access passage, serving as the mounting base for the entire lifting mechanism. The housing 51 is bolted and fixedly installed on the top of the base plate 50, and its interior is used to house wiring and some control components. The top plate 52 is located directly above the base plate 50 and can contact the top of the housing 51. A buffer pad is provided on the top of the chassis 51 to prevent the top plate 52 from making hard contact with the chassis 51 when it descends, thus avoiding wear. The top of the top plate 52 is hinged to the support plate 53, and the hinge structure allows the support plate 53 to be flipped to fit the top plate 52 when not in use, reducing space occupation. Two sets of side plates 54 are fixedly installed on both sides of the opposite ends of the bottom plate 50 and the top plate 52 by bolts. The side plates 54 provide installation support for the screw 55 and the guide rod 57. The screw 55 is rotatably connected between the two sets of side plates 54 through a deep groove ball bearing, and the outer ring of the bearing is interference-fitted with the side plate 54. The inner ring is fitted with the screw 55, and the threads at both ends of the screw 55 are set in opposite directions starting from the middle, ensuring that the sliders at both ends can move synchronously in opposite directions when the screw rotates; both ends of the screw 55 are threadedly connected to the sliders 56; the guide rod 57 is fixedly installed between the two sets of side plates 54 by bolts, and the slider 56 is slidably connected to the guide rod 57. The guide rod 57 guides and limits the movement of the slider 56, preventing the slider 56 from rotating with the screw 55; the stepper motor 58 is fixedly installed on the left side plate 54 by bolts. The stepper motor 58 is powered by the bus's onboard power supply, and its rotation is controlled by the third instrument module. The output shaft of the stepper motor 58 is fixedly connected to the screw 55 via a coupling. The coupling can compensate for installation coaxiality errors and ensure stable power transmission. The X-shaped rod 59 is located between the four sets of sliders 56, and the X-shaped rod 59 is composed of two sets of movable rods arranged in an X shape. The middle parts of the two sets of movable rods are rotatably connected together by a pin. The ends of the movable rods are rotatably connected to the sliders 56 via pins, so that when the sliders 56 move, they drive the X-shaped rod 59 to extend and retract, thereby driving the top plate 52 to rise and fall. Through the overall design of the wheelchair lifting mechanism, it can achieve stable lifting and lowering of wheelchairs, adapt to the needs of passengers of different heights to get on and off, eliminate the need for manual lifting of wheelchairs, and improve the convenience of travel for special groups.

[0054] This utility model also includes: a control system for controlling the rotating component and the wheelchair lifting mechanism; the control system includes: a first instrument module for controlling the rotating component connected to the main door 11; a second instrument module for controlling the rotating component connected to the side door 12; and a third instrument module for controlling the wheelchair lifting mechanism; each instrument module is integrated on the instrument panel of the bus driver's cab and powered by the bus's onboard power supply, which is convenient for the driver to operate and monitor.

[0055] The first instrument module is connected to K1, K2, K3, RL1, and RL2, with K1 and K3 connected in series. The second instrument module is connected to K1, K2, K3, two sets of K4, K5, K6, RL3, and RL4, with K1, K3, K4, K5, and K2, K4, and K6 connected in series respectively. The wire between the first instrument module and RL1 is connected to the wire between the second instrument module and RL3, and the wire between the first instrument module and RL2 is connected to the wire between the second instrument module and RL4. The output terminal of the third instrument module is connected in series with K7 and RL6, and RL6 is connected to a disabled person's pedal switch for controlling the wheelchair lifting mechanism. The input terminal of the third instrument module is connected to the output terminal of the disabled person's pedal switch via K6, and the disabled person's pedal switch is also connected to K8 and RL5.

[0056] Among them: K1 is the middle door opening / closing signal (located on the dashboard in the driver's cabin); K2 is the middle door closing / closing signal (located on the dashboard in the driver's cabin); K3 is the vehicle speed ≤ 3 km / h switching signal (linked with the bus speed sensor); K4 is the dashboard (small door) inhibition switch (used to control whether the small door is allowed to open); K5 is the middle door forward tilt seat switch (located on the dashboard in the driver's cabin, controlling the action of cylinder 42 corresponding to seat 30); K6 is the disabled access pedal output signal (triggered by the disabled access pedal switch); K7 is the parking output signal (linked with the bus parking system); K8 is the disabled access pedal dashboard authorized use switch (located on the dashboard in the driver's cabin, used to activate the wheelchair lifting mechanism). The control system has the following access permissions: RL1 is the solenoid valve for opening the passenger door (main door) (controlling the pneumatic motor 20 corresponding to main door 11 to open); RL2 is the solenoid valve for closing the passenger door (main door) (controlling the pneumatic motor 20 corresponding to main door 11 to close); RL3 is the solenoid valve for opening the passenger door (small door) (controlling the pneumatic motor 20 corresponding to small door 12 to open); RL4 is the solenoid valve for closing the passenger door (small door) (controlling the pneumatic motor 20 corresponding to small door 12 to close); RL5 is the main power relay for the wheelchair lifting mechanism (controlling the power supply to the wheelchair lifting mechanism); RL6 is the parking signal relay (ensuring the wheelchair lifting mechanism can only be started when the vehicle is parked, improving safety). Through the linkage design of the control system, it achieves coordinated operation of door opening and closing with the wheelchair lifting mechanism, meeting safety interlock requirements, eliminating the need for manual judgment of various operating conditions, and reducing the risk of operational errors.

[0057] The control system includes, but is not limited to, the following embodiments:

[0058] The implementation method is as follows: by independently or in conjunction with the large and small passenger doors, the door 11 can be opened alone or the large and small doors can be opened simultaneously in different usage scenarios to accurately match the different needs of normal passenger boarding and alighting and wheelchair passenger boarding and alighting.

[0059] Scenario 1: Normal passenger boarding and alighting (no wheelchair lifting mechanism required); In this scenario, the driver only needs to confirm that the vehicle is parked and the speed is ≤3 km / h (K3 switch closed, automatically triggered by the speed sensor), then operate the passenger door opening switch K1 on the dashboard (outputting the middle door opening signal). After receiving the signal, the first instrument module controls the RL1 solenoid valve to activate, thereby starting the pneumatic motor 20 corresponding to the main door 11, driving the main door 11 to rotate and open. After passengers board and alight, the driver operates the K2 switch (outputting the middle door closing signal). The first instrument module controls the RL2 solenoid valve to activate, starting the pneumatic motor 20 to rotate in the opposite direction, driving the main door 11 to close. In this scenario, the K4 switch in the second instrument module is in the off state, the small door 12 remains closed, and the seat 30 inside the small door 12 is in a horizontal use state. Through the control logic of this scenario, it is possible to achieve the effect of only opening the main door 11 to meet the passage size requirements during normal passenger boarding and alighting, without opening the small door 12, ensuring that all seats 30 are in normal use, and maximizing passenger capacity.

[0060] Scenario 2: Using a wheelchair lifting mechanism (for passengers with special needs to get on and off); Step 1: The driver first confirms that the vehicle is parked (K7 signal triggered) and the vehicle speed is ≤3 km / h (K3 closed), then closes the K4 switch (small door inhibition switch) on the dashboard to release the opening restriction of the small door 12; Step 2: Operate the K5 switch (middle door forward flip seat switch), after the second instrument module receives the signal, it controls the cylinder 42 corresponding to the seat 30 to extend the push rod, push the upright 41 to flip around the base 40, thereby driving the seat 30 to lift up and fix it, freeing up the small door 12 to open. Space required; Step 3: Operate switch K1. The first instrument module controls RL1 to open door 11. Simultaneously, because K1, K3, K4, and K5 all meet the conditions, the second instrument module controls RL3 to open small door 12, achieving simultaneous opening of the large and small doors and completely freeing up the doorway space required for the wheelchair lifting mechanism; Step 4: The driver operates switch K8 (authorization switch for the disabled access pedal instrument panel). At this time, K7 (parking) and K8 both meet the conditions, relay RL5 activates, and the main power supply to the wheelchair lifting mechanism is turned on; Step 5: Special groups can operate the wheelchair lifting mechanism... The pedal switch sends a control signal (K6 signal). After receiving the K6 signal, the third instrument module controls the stepper motor 58 to start. The stepper motor 58 drives the screw 55 to rotate. Because the threads at both ends of the screw 55 are reversed, the sliders 56 at both ends move synchronously towards each other along the guide rod 57, causing the X-shaped rod 59 to extend, thereby pushing the top plate 52 to rise to the same height as the bus floor. Step 6: Flip the support plate 53 so that it contacts the ground to form a transition ramp. The wheelchair moves onto the top plate 52 via the support plate 53. Then, the special group operates the disabled access pedal switch to send an upward signal. Step 7: After the wheelchair is loaded and unloaded, the disabled access pedal switch is operated to close the lifting mechanism. Then, the driver operates switch K2. Since conditions K4 and K6 are met, the first instrument module controls RL2 to close the main door 11, and the second instrument module controls RL4 to close the side door 12. Step 8: Switch K5 is operated again, the cylinder 42 push rod retracts, and the seat 30 flips back to its horizontal position. Through the linkage control and step-by-step operation of this scenario, the wheelchair lifting mechanism can be used safely and stably without the need for additional manual assistance in moving the wheelchair, and the entire process meets the relevant European regulations on passage size and safety.

[0061] In practical use, those skilled in the art can adjust the size ratio of the main door 11 and the small door 12, the flip angle of the seat 30, and the lifting stroke of the wheelchair lifting mechanism according to the specific model size of the bus to ensure the compatibility of each component; at the same time, anti-collision rubber strips can be added to the edges of the main door 11 and the small door 12, and a limit block can be set at the lifting position of the seat 30 to further improve the safety and service life of the equipment.

[0062] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A passenger door for a bus, comprising a bus body (10) with a passenger boarding / alighting passage, wherein a wheelchair lifting mechanism is provided in the middle of the passenger boarding / alighting passage, and a plurality of seats (30) are fixedly installed in the bus body (10), characterized in that, The passenger boarding and alighting passage has a large door (11) on the left side of the inner cavity via a rotating assembly, and a small door (12) on the right side of the inner cavity via a rotating assembly. The seat (30) located inside the small door (12) is installed in the bus body (10) via a connecting assembly.

2. A passenger door for a bus according to claim 1, characterized in that, The rotating component includes: Pneumatic motor (20), pneumatic motor (20) is fixedly installed on both sides of the inner cavity of the passenger boarding and alighting passage; A rotating shaft (21) is fixedly mounted on the output shaft of a pneumatic motor (20); Connecting rod (22), which is fixedly installed on the rotating shaft (21), and connecting rod (22) is fixedly installed on the inner side of both the main door (11) and the small door (12).

3. A passenger door for a bus according to claim 1, characterized in that, The connection component includes: A base (40) is fixedly installed in the bus body (10); The upright (41) is rotatably connected to the top right side of the base (40), and the seat (30) is fixedly installed on the top of the upright (41). The cylinder (42) is rotatably connected to the top left side of the base (40), and the push rod of the cylinder (42) is rotatably connected to the top of the upright (41).

4. A passenger door for a bus according to claim 3, characterized in that, The wheelchair lifting mechanism includes: The base plate (50) is fixedly installed in the middle of the passenger boarding and alighting passage; The chassis (51) is fixedly mounted on the top of the base plate (50); Top plate (52), which is located directly above bottom plate (50) and can contact the top of chassis (51); The top of the top plate (52) is hinged to the support plate (53).

5. A passenger door for a bus according to claim 4, characterized in that, The wheelchair lifting mechanism also includes: Side plates (54), and several sets of two side plates (54) are fixedly installed on both sides of the opposite ends of the bottom plate (50) and the top plate (52). The screw (55) is rotatably connected between two sets of side plates (54) by bearings, and the thread directions of the two ends of the screw (55) are set to be opposite from the middle. The slider (56) is threaded to both ends of the screw (55); X-shaped rod (59) is located between four sets of sliders (56).

6. A passenger door for a bus according to claim 5, characterized in that, The wheelchair lifting mechanism also includes: Guide rod (57), the guide rod (57) is fixedly installed between two sets of side plates (54), and the slider (56) is slidably connected to the guide rod (57); A stepper motor (58) is fixedly mounted on a side plate (54) located on the left side, and the output shaft of the stepper motor (58) is fixedly connected to a screw (55).

7. A passenger door for a bus according to claim 6, characterized in that, The X-shaped rod (59) is composed of two sets of movable rods arranged in an X shape, with the middle parts of the two sets of movable rods rotatably connected together, and the ends of the movable rods rotatably connected to the slider (56).

8. A passenger door for a bus according to claim 1, characterized in that, Also includes: A control system used to control rotating components and wheelchair lifting mechanisms; The control system includes: A first instrument module that controls the rotating assembly connected to the gate (11); A second instrument module for controlling the rotating assembly connected to the small door (12); A third instrument module that controls the wheelchair lifting mechanism; The first instrument module is connected to K1, K2, K3, RL1, and RL2, with K1 and K3 connected in series; The second instrument module is connected to K1, K2, K3, two sets of K4, K5, K6, RL3, and RL4, and K1, K3, K4, K5 and K2, K4, K6 are connected in series respectively; The wire between the first instrument module and RL1 is connected to the wire between the second instrument module and RL3, and the wire between the first instrument module and RL2 is connected to the wire between the second instrument module and RL4; The output terminal of the third instrument module is connected in series with K7 and RL6, and RL6 is connected to the disabled pedal switch used to control the wheelchair lifting mechanism. K6 is connected between the input terminal of the third instrument module and the output terminal of the disabled pedal switch. The disabled pedal switch is also connected with K8 and RL5.

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