CN113365892B

CN113365892B - Brake switch circuit

Info

Publication number: CN113365892B
Application number: CN202080007911.0A
Authority: CN
Inventors: R·阿南特·库玛; B·萨亚杰特
Original assignee: Shangyinuo Motorcycle Co ltd
Current assignee: Shangyinuo Motorcycle Co ltd
Priority date: 2019-01-04
Filing date: 2020-01-03
Publication date: 2023-04-04
Anticipated expiration: 2040-01-03
Also published as: WO2020141557A1; CO2021008850A2; CN113365892A

Abstract

The invention includes a vehicle (100). The vehicle (100) comprises at least one brake actuator (150, 160), an electrical storage unit (302), a tail light (208), an electronic controller unit (206) and a switch unit (500). The tail light (208) includes a stop light unit (208 a) and a tail light unit (208 b). The switch unit (500) is operatively coupled with at least one brake actuator (150, 160). The switching unit (500) comprises a first terminal (506 a), a second terminal (506 b), a third terminal (506 c) and a fourth terminal (506 d). Further, upon actuation of the at least one brake actuator (150, 160), the first terminal (506 a) is electrically connected to the third terminal (507 c) and the second terminal (506 c) is electrically connected to the fourth terminal (506 d).

Description

Brake switch circuit

The following description specifically describes the invention and its manner of execution.

Technical Field

The present invention relates to a vehicle, and more particularly, to a brake switch device of a vehicle.

Background

Vehicles typically include a brake lever at the steering handle or a brake pedal at a foot pedal for braking the vehicle. In addition to the brake lever or the brake pedal, a brake light switch is generally provided for lighting a brake light when braking.

When the brake is operated by a brake lever or a brake pedal, various vehicle components such as an idle start stop controller and a fuel injection controller take input from a brake switch. The idle start stop controller takes this as input to turn off or on the engine of the vehicle. Fig. 2 shows a braking circuit (200) in which the input of either the front brake switch (202) or the rear brake switch (204) is provided to the controller (206). The circuit (200) provides an active high side input to the controller (206) indicating that either the front or rear brake switch has been closed by the brake lever or pedal. Based on input from the brake switches (202, 204), the controller (206) makes the required predetermined decisions to turn the engine of the vehicle on or off. The front brake switch (202) and the rear brake switch (204) are also configured to operate the rear lights (208) of the vehicle (100) when the user applies any brakes.

In the foregoing configuration, the active side input is provided to the controller. However, providing an active high-side input to the controller has its own drawbacks. An active side input may spike noise and may cause an otherwise undesirable disturbance of the output. This may result from very little current in the circuit. Therefore, an active low input is generally preferred over an active high input to avoid noise and interference that causes disturbances to the output. In addition, active high inputs can cause problems with leakage current, increased package size due to the addition of one or more voltage divider circuits, and high heat generation due to the high current requirements of the controller for operation.

Therefore, it is preferable to have an active low input to the controller to avoid noise and the above-mentioned problems. However, when active low input is achieved using a braking circuit (300) like that mentioned in fig. 3, the brake light (208 a) and position light (208 b) Ground (GND) terminals cannot be isolated as required because there are two input terminals (300 a, 300 b), the brake light (208 a) has an input from the electrical storage unit (302), and the position light (298 b) has an input from the regulator and rectifier unit (304) or from the electrical storage unit (302) on demand, and a single ground terminal (306) for the vehicle brake light (208 a) and position light (208 b). One of the solutions to isolate the ground terminal GND (306) of the circuit. However, since the ground GND (306) of the tail lamp (208) (the stop lamp (208 a) and the position lamp (208 b)) is isolated, the cost increases because two ground terminals need to be incorporated into the tail lamp (208).

Summary of The Invention

This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

In one aspect of the present invention, a vehicle is provided. The vehicle includes at least one brake actuator, an electric storage unit, a tail lamp, an electronic controller unit, and a switch unit. The tail lamp includes a stop lamp unit and a tail lamp unit. The brake light unit is electrically connected to the at least one brake actuator and is configured to illuminate when the at least one brake actuator is actuated. The tail light unit is configured to be lit when the vehicle is started. The electronic controller unit includes an ECU pin. The switch unit is operatively coupled with the at least one brake actuator. The switching unit includes a first terminal, a second terminal, a third terminal, and a fourth terminal. The first terminal is connected to the storage cell. The second terminal is connected to the ECU pin. The third terminal is connected to the stop lamp unit. The fourth terminal is grounded. Upon actuation of the at least one brake actuator, the first terminal is electrically connected to the third terminal and the second terminal is electrically connected to the fourth terminal.

In one embodiment, the electrical connection of the first terminal and the third terminal connects the electric storage unit to the stop lamp unit.

In one embodiment, the power storage unit provides power to the brake light unit to illuminate upon actuation of the at least one brake actuator.

In one embodiment, the electrical connection of the second terminal to the fourth terminal connects the ECU pin to Ground (GND).

In one embodiment, the grounded fourth terminal provides an active low side input to the ECU through an ECU pin.

In an embodiment, the stop lamp unit comprises a first stop terminal and a second stop terminal, wherein the second stop terminal is connected to ground.

In an embodiment, the tail light unit comprises a first tail terminal and a second tail terminal, wherein the second tail terminal is connected to ground.

In one embodiment, the tail light unit and the stop light unit are grounded with the same Ground (GND).

In one embodiment, the first terminal is connected to the RR cell.

In an embodiment, the first brake terminal is connected to the third terminal of the switching unit.

In one aspect of the invention, a switch unit for a vehicle is provided having at least one brake actuator, an electrical storage unit, a tail light and an electronic controller unit. The switch unit includes: a cylindrical shaft operably coupled with at least one brake actuator; an elastic member coupled with the cylindrical shaft; a base for securing a cylindrical shaft; and a holding member. The holding member includes a first terminal connected to the electric storage unit; a second terminal connected to the ECU; a third terminal of the stop lamp unit connected to the tail lamp; and a fourth terminal connected to the Ground (GND). Upon actuation of the at least one brake actuator, the switching unit is actuated to electrically connect the first terminal to the third terminal and the second terminal to the fourth terminal, whereby the electric storage unit is electrically connected to the brake lamp unit and the electronic controller unit is electrically connected to the Ground (GND).

In an embodiment, the base includes a surface positioned toward the first terminal and the fourth terminal; and a surface positioned toward the second terminal and the third terminal. Actuation of the switching unit causes the base to cause electrical connection of the first terminal with the fourth terminal through the surface, and electrical connection of the second terminal with the third terminal.

The invention provides the advantage of an active low side input to the electronic controller unit, which has an isolated Ground (GND) for the tail lights. The tail lamp has a ground terminal common to the stop lamp unit and the tail lamp unit.

The present invention reduces noise and interference due to active high side inputs to an Electronic Controller Unit (ECU) in a conventional vehicle. Further, the packaging of the ECU in the vehicle is simplified due to the smaller size or dimensions of the ECU, while many additional circuitry is eliminated due to the use of the active low side input.

Further, the invention also provides a cost-effective solution for the isolation of the brake light unit and the Ground (GND) of the tail light unit provided in the tail light.

Brief description of the drawings

The invention itself, together with further features and noted advantages, will be best understood from the following description, taken in conjunction with the accompanying drawings. One or more embodiments of the present invention will now be described, by way of example only, with like reference numerals referring to like elements, and in which:

FIG. 1 illustrates a side view of a vehicle according to an embodiment of the present invention;

FIG. 2 illustrates an exemplary high-side active input circuit for a brake switch circuit in a conventional vehicle;

FIG. 3 illustrates an exemplary low-side active input circuit for a brake switching circuit in a conventional vehicle;

fig. 4 illustrates an exemplary low-side active input circuit of a brake switch circuit having a Double Pole Single Throw (DPST) switch in accordance with an embodiment of the present invention;

FIG. 5 illustrates a plan view of a Double Pole Single Throw (DPST) switch, according to an embodiment of the invention; and

fig. 6 illustrates a front view of a Double Pole Single Throw (DPST) switch according to another embodiment of the present invention.

The drawings referred to in this description should not be understood as being drawn to scale unless specifically noted, and such drawings are merely exemplary in nature. If provided together with the present description, the color drawings are only meant to clarify the details of the invention and have no effect in any way on the scope of the invention.

Detailed Description

While the invention is susceptible to various modifications and alternative forms, embodiments thereof have been shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that there is no intention to limit the invention to the specific forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a list of elements or steps that comprise a means, structure, or method does not include only those elements or steps but may include other elements or steps not expressly listed or inherent to such means, structure, or method. In other words, without further constraints, one or more elements of a system or device beginning with "including 8230; \8230; one does not preclude the presence of other elements or additional elements in the system or device.

For a better understanding of the present invention, reference will now be made to the embodiments illustrated in the drawings and described below, and in the following drawings, like numerals are used to identify like parts in the various views.

However, although the present invention is described in the context of a vehicle, the brake switch circuit and aspects and features thereof can also be used with other types of vehicles. The terms "vehicle", "two-wheeled vehicle" and "motorcycle" have been used interchangeably throughout the specification. The term "vehicle" includes vehicles such as motorcycles, scooters, bicycles, scooters, scooter-type vehicles, all Terrain Vehicles (ATVs), and the like.

The terms "front/forward", "rear/rearward", "up/top", "down/lower, bottom", "left/left", "right/right" used herein denote directions as seen when a vehicle rider straddles, and these directions are represented by arrows Fr, rr, U, lr, L, R in the drawings.

The invention provides a vehicle. The vehicle includes at least one brake actuator, an electric storage unit, a tail lamp, an electronic controller unit, and a switch unit. The tail lamp includes a stop lamp unit and a tail lamp unit. The brake light unit is electrically connected to the at least one brake actuator and is configured to illuminate upon actuation of the at least one brake actuator. The tail light unit is configured to be lit when the vehicle is started. The electronic controller unit includes an ECU pin. The switch unit is operatively coupled with the at least one brake actuator. The switching unit includes a first terminal, a second terminal, a third terminal, and a fourth terminal. The first terminal is connected to the storage cell. The second terminal is connected to the ECU pin. The third terminal is connected to the stop lamp unit. The fourth terminal is grounded. Upon actuation of the at least one brake actuator, the first terminal is electrically connected to the third terminal and the second terminal is electrically connected to the fourth terminal.

The electrical connection of the first terminal and the third terminal connects the electric storage unit to the stop lamp unit. The electrical storage unit provides electrical power to the brake light unit to illuminate upon actuation of the at least one brake actuator. The electrical connection of the second terminal and the fourth terminal connects the ECU pin to Ground (GND). The grounded fourth terminal provides an active low side input to the ECU through an ECU pin.

The stop lamp unit includes a first stop terminal and a second stop terminal, wherein the second stop terminal is grounded. The tail light unit includes a first tail terminal and a second tail terminal. The second terminal is grounded. The tail lamp unit and the stop lamp unit are grounded with the same ground terminal (GND). The first tail terminal is connected to the RR unit. Further, the first brake terminal is connected to the third terminal of the switching unit.

The invention also provides a switch unit for a vehicle, having at least one brake actuator, an electrical storage unit, a tail light and an electronic control unit. The switch unit includes: a cylindrical shaft operably coupled with at least one brake actuator; an elastic member coupled with the cylindrical shaft; a base for securing a cylindrical shaft; and a holding member. The holding member includes a first terminal connected to the electric storage unit; a second terminal connected to the ECU; a third terminal connected to a stop lamp unit of the tail lamp; and a fourth terminal connected to the Ground (GND). Upon actuation of the at least one brake actuator, the switching unit is actuated to electrically connect the first terminal to the third terminal and the second terminal to the fourth terminal, whereby the electric storage unit is electrically connected to the brake light unit and the electronic controller unit is electrically connected to the Ground (GND). The base includes a surface positioned toward the first terminal and the fourth terminal; and a surface positioned toward the second terminal and the third terminal. Actuation of the switch unit causes the base to cause electrical connection of the first and fourth terminals to the surface, and electrical connection of the second and third terminals.

Fig. 1 shows a side view of an exemplary two-wheeled vehicle (100) according to an embodiment of the invention. The vehicle (100) referred to herein is embodied as a motorcycle. Alternatively, without limiting the scope of the invention, the vehicle (100) may be embodied as any other saddle-ride type vehicle, such as a scooter, a three-wheeled vehicle, an all-terrain vehicle (ATV), and the like. The vehicle (100) includes a frame (102), a steering assembly (104), and a front ground engaging member (106). The frame (102) supports a steering assembly (104) and a front ground engaging member (106) located at the front of the vehicle (100). The steering assembly (104) is pivotally mounted to the frame (102). The front ground engaging member (106) is operatively connected to the steering assembly (104). The steering assembly (104) includes a handle (108). The handle (108) is configured to be rotated by a rider to steer the vehicle (100). The handlebar (108) is also provided with a plurality of switches, i.e. a start switch, a headlight switch, etc., and a front brake actuator (160) (not shown) (visible from the right side view of the vehicle). Further, the vehicle (100) comprises a rear brake actuator (150) towards the bottom of the vehicle (100). In the present disclosure, the front brake actuator (160) and the rear brake actuator (150) are collectively referred to as at least one brake actuator (150, 160) and are referred to interchangeably. The front of the vehicle (100) may include headlights (104 a), front forks, front fenders, instrument panel assemblies, rearview mirrors, indicator lights, etc., without limiting the scope of the invention.

Further, the vehicle (100) includes a power unit (110) and a rear ground engaging member (111). In the illustrated example, the power unit (110) provides the necessary power required to drive the rear ground engaging members (111) of the vehicle (100). Alternatively, without limiting the scope of the invention, the power unit (110) may provide the necessary power to drive the front ground engaging members (106), or to drive both the front ground engaging members (106) and the rear ground engaging members (111).

The main body frame (102) supports a power unit (110) located in the center of the vehicle (100) via a pivot plate (not shown). The power unit (110) includes an engine (112), a starter motor (not shown) that rotates (crank) the engine (112), and a transmission unit (not shown). The engine (112) generates power required by the vehicle (100). The transmission unit transmits the generated power to the rear ground engaging member (111).

With further reference to fig. 1, the vehicle (100) includes a seat (116). The frame (102) supports a seat (116) that extends from the middle to the rear of the vehicle (100). The rear ground engaging member (111) is supported by the frame (102) at the rear of the vehicle (100). The seat (116) provides a seat for a rider and a passenger of the vehicle (100). Further, the seat (116) includes a rider seat (118) and a passenger seat (120). The rider seat (118) provides seating for a rider, and the passenger seat (120) provides seating for a passenger of the vehicle (100). The vehicle (100) also includes a fuel tank system (122). The fuel tank system (122) stores and supplies the necessary fuel to the engine (112) to generate power within the vehicle (100). A fuel tank system (122) is disposed between the steering assembly (104) and the seat (116). Further, the vehicle (100) comprises tail lights (208) located at the rear of the vehicle (100). Further, the vehicle (100) may include rear lights, suspension systems, swing arms, or various other components known in the art without limitation.

Referring now to fig. 4, the tail lamp (208) includes a brake lamp unit (208 a) and a tail lamp unit (208 b). The brake light unit (208 a) is electrically connected to the at least one brake actuator (150, 160) and is configured to illuminate upon actuation of the at least one brake actuator (150, 160). The tail light unit (208 b) is configured to be lit when the vehicle (100) is started. The brake lamp unit (208 a) includes a first brake terminal (208 aa) and a second brake terminal (208 ab). The first brake terminal (208 aa) is connected to the third terminal (506 c) of the switch unit (500). The second brake terminal (208 ab) is grounded. The tail light unit (208 b) includes a first tail terminal (208 ba) and a second tail terminal (208 bb). The first tail terminal (208 ba) is connected to the RR unit (304). The second tail terminal (208 bb) is grounded. In the present embodiment, the tail lamp unit (208 b) and the stop lamp unit (208 a) are grounded with the same Ground (GND).

Further, fig. 4 illustrates an exemplary low-side active input circuit for a brake switching circuit having a switching cell (500) according to an embodiment of the present invention. In the present invention, the switch unit (500) is interchangeably referred to as a Double Pole Single Throw (DPST) switch (500). The vehicle (100) comprises at least one brake actuator (150, 160), an electrical storage unit (302), a tail light (208), an electronic controller unit (206) and a switch unit (500). The electronic controller unit (206) includes an ECU pin (206 a). A switching unit (500) is provided for providing a low side active input to the brake switching circuit. The switch unit (500) is operatively coupled with at least one brake actuator (150, 160).

The switching unit (500) includes a first terminal (506 a), a second terminal (506 b), a third terminal (506 c), and a fourth terminal (506 d), collectively referred to as terminals (506). The first terminal (506 a) is connected to the power storage unit (302). The second terminal (506 b) is connected to the ECU pin (206 a). The third terminal (506 c) is connected to the stop lamp unit (208 a). The fourth terminal (506 d) is grounded. Further, upon actuation of the at least one brake actuator (150, 160), the first terminal (506 a) is electrically connected to the third terminal (507 c) and the second terminal (506 c) is electrically connected to the fourth terminal (506 d). The electrical connection of the first terminal (506 a) and the third terminal (506 c) connects the power storage unit (302) to the brake lamp unit (208 a). After establishing an electrical connection between the first terminal (506 a) and the third terminal (506 c), the electrical storage unit (302) provides electrical power to the brake light unit (208 a) to light up when the at least one brake actuator (150, 160) is actuated.

Further, the electrical connection of the second terminal (506 b) and the fourth terminal (506 d) connects the ECU pin (206 a) and the Ground (GND). Thereafter, the grounded fourth terminal (506 d) provides an active low side input to the ECU (206) through the ECU pin (206 a).

In this embodiment, a Double Pole Single Throw (DPST) type switch (500) provides a common ground for the stop lamp unit (208 a) and the tail lamp unit (208 b) of the tail lamps (208). In one of the embodiments, the brake light unit (208 a) and the tail light unit (208 b) are integrated in a single assembly of the tail light (208) such that the tail light (208) has two input terminals and a single ground terminal.

In one of the embodiments, the stop lamp unit (208 a) is configured with an input from the power storage unit (302) through a Double Pole Single Throw (DPST) type switch (500) as a rear brake switch (150). In an embodiment of the present invention, the tail lamp unit (208 b) is turned on when the ignition of the vehicle (100) is turned on. In another embodiment of the present invention, the tail light unit (208 b) is turned on when the power unit (110) of the vehicle (100) is turned on.

Fig. 5 illustrates a plan view of a Double Pole Single Throw (DPST) switch (500) according to an embodiment of the present invention. On the other hand, fig. 6 shows a front view of a Double Pole Single Throw (DPST) switch (500) according to another embodiment of the present invention. In an embodiment, a Double Pole Single Throw (DPST) switch (500) has two inputs (506 b, 506 c) and two outputs (506 a, 506 b). A switch unit (500) for a vehicle (100) includes a cylindrical shaft (502), an elastic member (504) also referred to as a spring (504), a base (508), and a retaining member (520). The cylindrical shaft (502) is operably coupled with at least one brake actuator (150, 160). The elastic member (504) is coupled with the cylindrical shaft (502). The base (508) is adapted to hold a cylindrical shaft (502). The holding member (520) includes a first terminal (506 a), a second terminal (506 b), a third terminal (506 c), and a fourth terminal (506 d). The first terminal (506 a) is connected to the power storage unit (302). The second terminal (506 b) is connected to the ECU pin (206 a). The third terminal (506 c) is connected to the stop lamp unit (208 a). The fourth terminal (506 d) is grounded.

The base (508) includes a surface (508 a) positioned toward the first terminal (402 ab) and the fourth terminal (402 ac) and a surface (508 b) positioned toward the second terminal (402 bc) and the third terminal (402 bb). Actuation of the switching cell (500) causes the base (508) to cause electrical connection of the first terminal (402 ab) with the fourth terminal (402 ac) through the surface (508 a), and electrical connection of the second terminal (402 bc) with the third terminal (402 bb).

Further, in an embodiment, a Double Pole Single Throw (DPST) switch (500) includes a cylindrical shaft (502) operatively coupled with at least one brake actuator (150, 160); a first terminal (506 a) and a fourth terminal (506 b) for providing input to an Electronic Controller Unit (ECU); and a second terminal (506 c) and a third terminal (506 d) to turn on a brake light upon actuation of a brake lever or pedal. In another embodiment, a double pole, single pass switch (500) providing a ground terminal (GND) to an Electronic Controller Unit (ECU) as a first contact and the ground terminal (GND) as an input to the Electronic Controller Unit (ECU) is closed, which then turns a stop light on as a second contact between a second terminal (506 c) and a third terminal (506 c) when a cylindrical shaft (502) operatively coupled to a brake lever or pedal is actuated.

In an embodiment, a Double Pole Single Throw (DPST) switch (500) further comprises: a cylindrical shaft (502) that is actuated with operation of the brake lever or pedal, a spring (504) coupled with the cylindrical shaft (502) to restore the position of the shaft when the brake lever or pedal is released; and a base (508) provided with a first contact on a surface (508 a) and a second contact on an opposite surface (508 b) such that a distal end of the first terminal (402 ab) and a distal end (402 ac) of the fourth terminal are in contact with a first conductive member (510 a) provided on the surface (508 a), and a distal end of the second terminal (402 bc) and a distal end (402 bb) of the third terminal, see fig. 6, are in contact with a second conductive member (510 b) provided on the opposite surface (508 b). The base (508) also holds the cylindrical shaft (502) and is disposed between the distal ends (402) of the terminals (506).

The brake switch (500) turns on the brake lamp unit (208 a) when the vehicle (100) brakes. A Double Pole Single Throw (DPST) type switch (500) or switch (500) is disclosed herein as a brake switch (500). Herein, a Double Pole Single Throw (DPST) type switch (500) also provides an active low side input to an Electronic Controller Unit (ECU) (206) having a common Ground (GND) with respect to a brake light unit (208 a) and a tail light unit (208 b) of the tail lights (208).

The stop lamp unit (208 a) is configured with an input from the electrical storage unit (302) through a Double Pole Single Throw (DPST) type switch (500) as a rear brake switch (500). The tail lamp unit (208 b) is turned on when an ignition of the vehicle (100) is turned on. A Double Pole Single Throw (DPST) type switch (500) is configured such that a first contact is connected between either the rear brake switch (500) or the front brake switch (500) and the power storage unit (302), and a second contact of the Double Pole Single Throw (DPST) type switch (500) is further connected to provide an active low input to an Electronic Controller Unit (ECU) (206), i.e., the ECU pin (206 a) is connected to Ground (GND) during braking of the vehicle (100). Any one of the remaining rear brake switches (500) or front brake switches (500) is also connected to the tail lights (208) of the vehicle (100).

The invention provides the advantage of an active low side input to an electronic controller unit (206) having an isolated Ground (GND) for the tail lights (208). The tail lamp (208) has a Ground (GND) shared by the stop lamp unit (208 a) and the tail lamp unit (208 b).

The present invention reduces noise and interference due to active high side input of an electronic controller unit (206) (ECU) in a conventional vehicle. Further, packaging of the ECU (206) in the vehicle (100) is simplified due to the small size or dimensions of the ECU (206), while many additional circuitry is removed due to the use of the active low side input.

Further, the invention also provides a cost-effective solution for the isolation of the Ground (GND) for the brake lamp unit (208 a) and the tail lamp unit (208 b) arranged in the tail lamp (208) of the vehicle (100).

Although a few embodiments of the present invention have been described above, it is to be understood that the present invention is not limited to the above-described embodiments, and may be appropriately modified within the spirit and scope of the present invention.

While considerable emphasis has been placed herein on the particular features of the invention, it will be appreciated that various modifications, and many changes in the preferred embodiments, can be made without departing from the principles of the invention. These and other modifications in the nature of the invention or preferred embodiments will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the invention and not as a limitation.

Claims

1. A vehicle (100) comprising:

at least one brake actuator (150, 160);

an electric storage unit (302);

a tail light (208) comprising:

a brake light unit (208 a) electrically connected to the at least one brake actuator (150, 160) and configured to illuminate upon actuation of the at least one brake actuator (150, 160); and

a tail light unit (208 b) configured to light up when the vehicle (100) starts up;

an electronic controller unit (206) comprising an ECU pin (206 a); and

a switch unit (500) operatively coupled with the at least one brake actuator (150, 160), the switch unit (500) comprising:

a first terminal (506 a) connected to the power storage unit (302);

a second terminal (506 b) connected to the ECU pin (206 a);

a third terminal (506 c) connected to a brake lamp unit (208 a); and

a fourth terminal (506 d), the fourth terminal (506 d) being connected to ground, wherein, upon actuation of the at least one brake actuator (150, 160), the first terminal (506 a) is electrically connected to the third terminal (507 c) and the second terminal (506 b) is electrically connected to the fourth terminal (506 d).

2. The vehicle (100) according to claim 1, characterized in that the electrical connection of the first terminal (506 a) and the third terminal (506 c) connects the power storage unit (302) to the stop lamp unit (208 a).

3. The vehicle (100) of claim 2, characterized in that the electrical storage unit (302) provides electrical power to the brake lamp unit (208 a) to illuminate upon actuation of the at least one brake actuator (150, 160).

4. The vehicle (100) of claim 1, characterized in that the electrical connection of the second terminal (506 b) and the fourth terminal (506 d) connects the ECU pin (206 a) to Ground (GND).

5. The vehicle (100) of claim 4, characterized in that the fourth terminal (506 d) connected to the Ground (GND) provides an active low side input to the ECU (206) through the ECU pin (206 a).

6. The vehicle (100) of claim 1, characterized in that the tail light (208) comprises:

a brake light unit (208 a) having a first brake terminal (208 aa) and a second brake terminal (208 ab); and

a tail light unit (208 b) having a first tail terminal (208 ba) and a second tail terminal (208 bb), wherein each of the second brake terminal (208 ab) and the second tail terminal (208 bb) is grounded.

7. The vehicle (100) of claim 6, characterized in that the tail light unit (208 b) and the stop light unit (208 a) are grounded with the same Ground (GND).

8. The vehicle (100) according to claim 1 and claim 6, characterized in that the first tail terminal (208 ba) is connected to an RR unit (304).

9. A switch unit (500) for a vehicle (100), the switch unit having at least one brake actuator (150, 160), an electric storage unit (302), a tail light (208) and an electronic controller unit (206), the switch unit (500) comprising:

a cylindrical shaft (502) operably coupled with the at least one brake actuator (150, 160);

an elastic member (504) coupled with the cylindrical shaft (502);

a base (508) adapted to hold the cylindrical shaft (502); and

a retaining member (520) comprising:

a first terminal (506 a) connected to the electric storage unit (302);

a second terminal (506 b) connected to the electronic controller unit (206);

a third terminal (506 c) connected to a stop lamp unit (208 a) of the tail lamp (208); and

a fourth terminal (506 d) connected to a Ground (GND), wherein, upon actuation of the at least one brake actuator (150, 160), the switching unit (500) is actuated to electrically connect the first terminal (506 a) to the third terminal (506 c) and the second terminal (506 b) to the fourth terminal (506 d), whereby the electrical storage unit (302) is electrically connected to the brake light unit (208 a) and the electronic controller unit (206) is electrically connected to the Ground (GND).

10. The switch unit (500) of claim 9, wherein the base (508) comprises:

a surface (508 a) located toward the first terminal (402 ab) and the fourth terminal (402 ac), an

A surface (508 b) located toward the second terminal (402 bc) and the third terminal (402 bb),

wherein actuation of the switching unit (500) causes the base portion (508) to cause electrical connection of the first terminal (402 ab) and the fourth terminal (402 ac) through the surface (508 a), and electrical connection of the second terminal (402 bc) and the third terminal (402 bb).