CN111712689A

CN111712689A - Hand throttle valve sensor

Info

Publication number: CN111712689A
Application number: CN201880089148.3A
Authority: CN
Inventors: M·巴奇特
Original assignee: Hella GmbH and Co KGaA
Current assignee: Hella GmbH and Co KGaA
Priority date: 2018-04-20
Filing date: 2018-04-20
Publication date: 2020-09-25
Also published as: WO2019202370A1

Abstract

The present invention provides a hand throttle sensor for sensing acceleration and deceleration positions of a hand throttle of a vehicle. The hand throttle sensor includes a positioning element and a sensing element. The positioning element is circumferentially arranged on the rotating assembly of the hand throttle. The sensing element is disposed adjacent and coaxially with the rotating assembly. The positioning element moves relative to the rotating assembly as the rotating assembly rotates, and the relative position of the positioning element from its rest position is detected by the sensing circuit of the sensing element, thereby detecting the position of the throttle valve.

Description

Hand throttle valve sensor

Technical Field

The present invention relates to a non-contact position sensor. More particularly, the present invention relates to a hand throttle sensor for sensing the position of a rotating element of a hand throttle, particularly in a two-or three-wheeled vehicle.

Background

Position sensors are typically used to read position parameters of a particular sensor. Position sensors have many applications in various fields of electronics and automotive. In the automotive industry, these position sensors may be used as steering sensors, rain light sensors, body actuators, vehicle height sensors, accelerator pedal sensors, transmission range sensors, throttle plate sensors, and the like.

Currently, the position sensors used to determine the position of the throttle plate in the vehicle are potentiometer sensors, hall effect sensors or proximity sensors or inductive sensors, among others. The position sensor using the potentiometer has a variable resistance potentiometer that sends a varying voltage signal to the power control module depending on the position of the throttle plate. The position of the throttle plate, as well as other sensors, may determine the fuel required by the engine at any given time. In these types of sensors, the potentiometer should be in contact with the throttle.

Further, non-contact sensors, such as inductive sensors and proximity sensors, are also used to receive the throttle position of the vehicle. All of these sensors are disposed adjacent to the throttle device of the vehicle. Therefore, testing position sensors to ensure proper operation can be difficult because the electronics of these sensors are very complex and require skilled workers to perform the testing.

Accordingly, there is a need for a hand throttle sensor that overcomes some or all of the disadvantages of the current arrangements of position sensors for detecting hand throttle position.

Disclosure of Invention

It is an object of the present invention to provide a hand throttle sensor for sensing acceleration and deceleration positions of a hand throttle of a vehicle.

It is another object of the present invention to provide a hand throttle sensor for sensing the position of a rotating element, which is constructed on the hand throttle of two-and three-wheeled vehicles.

It is yet another object of the present invention to provide a hand throttle sensor for sensing the position of a rotary element, which non-contact detects the position of the hand throttle.

It is a further object of the present invention to provide a hand throttle sensor for sensing the position of a rotary element of a hand throttle that is economical and simple in construction.

It is yet another object of the present invention to provide a hand throttle sensor for sensing the position of a rotating element of a hand throttle that is robust in construction.

Disclosure of Invention

According to the present invention, a hand throttle sensor for sensing a position of a rotating element of a hand throttle of a vehicle is provided. The hand throttle sensor includes a positioning element and a sensing element. The positioning element is arranged on the circumference of the rotary component of the hand throttle. The rotating assembly includes a biasing member and a bracket element. The biasing member is a torsion spring arranged in connection with the carrier element. The support element is a hollow circular member with a stop means on one side. The stop means may be an uneven surface which is engagingly connected with the biasing member.

Further, the holder element is rotatably arranged in the hand throttle. Specifically, when the user accelerates or decelerates the throttle, the carrier element rotates. The positioning element is disposed inside a protruding portion extending radially outward from the stent element. Further, the sensing element is disposed inside a housing of the hand throttle and is disposed adjacent to and coaxial with the rotating assembly. The sensing element is an inductive circuit to detect movement of the positioning element relative to the support element by induction.

The sensing circuit is constructed on a printed circuit board. In this embodiment, the Printed Circuit Board (PCB) of the sensing element is partially circular like a "C" so that the movement of the positioning element can be detected by the sensing element. As the rotating assembly rotates, the positioning element moves relative to the rotating assembly, and the relative position of the positioning element from its idle position is detected by the sensing circuit of the sensing element to detect the position of the throttle valve.

The position sensing based on the induction circuit has an advantage of preventing a change in a signal due to an external magnetic field observed in the magnetic field detection circuit.

Drawings

The advantages and features of the present invention will become better understood with reference to the following detailed description and appended claims taken in conjunction with the accompanying drawings, in which like elements are identified with like numerals, and in which:

FIG. 1 shows an exploded view of a hand throttle sensor for sensing the position of a rotating element of a hand throttle of a vehicle according to the present invention;

FIG. 2a shows the arrangement of the hand throttle sensor in the hand throttle;

FIG. 2b shows an assembled view of a hand throttle sensor for sensing the position of a rotating element of a hand throttle of a vehicle according to the present invention;

3a, 3b, 3c and 3d show various views of a hand throttle sensor for sensing the position of a rotary element of a hand throttle of a vehicle;

FIG. 4a shows a perspective view of a hand throttle sensor for sensing the position of a rotating element of a hand throttle of a vehicle;

FIG. 4b shows a side view of FIG. 1;

FIG. 5a shows the arrangement of the sensing element in a hand throttle sensor; and

fig. 5b shows the sensing circuit on the PCB of the hand throttle sensor according to the present invention.

Detailed Description

Embodiments of the present invention illustrating its features will now be described in detail. The terms "comprising," "having," "containing," and "containing," as well as other forms thereof, are intended to be equivalent in meaning and be open ended in that one or more items following any one of these terms are not an exhaustive list of such one or more items, or are limited to only the listed one or more items.

The terms "first," "second," and the like, herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another, and the terms "a" and "an" herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.

The present invention is to provide a hand throttle sensor for sensing acceleration and deceleration positions of a hand throttle of a vehicle. Specifically, the hand throttle sensor is configured on a hand throttle of a two/three wheeled vehicle to sense throttle position. Further, the sensor detects the position of the throttle valve contactlessly. Moreover, the hand throttle sensor is economical, simple in structure and robust in structure.

The disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms.

Referring to fig. 1, 2a and 2b, a hand throttle sensor (hereinafter referred to as sensor 100) for sensing a position of a rotary element of a hand throttle 200 of a vehicle according to the present invention is shown. Specifically, the sensor 100 is a position sensor disposed on a hand throttle 200 of a two-or three-wheeled vehicle to detect a throttle position when the hand throttle 200 is accelerated and decelerated. Sensor 100 includes a positioning element 120 and a sensing element 130. In addition, fig. 3a, 3b, 3c, 3d, 4a, and 4b illustrate various views of the sensor 100 for sensing the acceleration and deceleration positions of the hand throttle 200 of the vehicle.

The hand throttle 200 is also provided with a rotation assembly 110. The rotation assembly 110 includes a biasing member 112 and a bracket element 114. The biasing member 112 is a torsion spring arranged in connection with the carrier element 114. The bracket element 114 is a hollow circular member with a stop arrangement 116 at one side. The stop arrangement 116 may be an uneven surface that is engagingly coupled with the biasing member 112. In particular, one end of the biasing member 112 is connected with a stop arrangement 116, such that the rotational movement of the carrier element 114 may be biased by the biasing member 112. Further, the bracket member 114 is rotatably disposed on the hand throttle 200. Specifically, as the user accelerates or decelerates the hand throttle 200, the bracket element 114 rotates. In this embodiment, rotation of the stand element 114 from the rest position is performed manually by the user, and the reverse movement or deceleration occurs by retraction of the biasing member 112.

Referring again to fig. 1 and 2a, the positioning element 120 is disposed on the circumference of the rotating assembly 110 of the hand throttle 200. Specifically, the positioning element 120 is integrally connected to the bracket element 114. More specifically, the positioning element 120 is disposed within a projection 118 extending radially outward from the stent element 114. In the present embodiment, the positioning element 120 is made of an electrically conductive material, in particular a metal plate made of copper or aluminum. It may be apparent to one skilled in the art that any other metallic body may be used for positioning element 120. The positioning element 120 is a cursor segment arranged inside the projection 118, which cursor segment moves relative to the carrier element 114. The positioning element 120 is preferably arranged in the protruding portion 118 of the bracket element 114 by injection molding. Specifically, the positioning element 120 rotates relatively with the movement of the carriage element 114.

Further, the sensing element 130 is disposed adjacent and coaxially with the rotating assembly 110 inside the housing 132. The sensing element 130 is an inductive circuit as shown in fig. 5a and 5b to detect movement of the positioning element 120 relative to the carrier element 114 by induction. Further, as shown in fig. 5b, the inductive circuit has at least three

receiver coils

130a, 130b, and 130c for receiving signals and at least one transmitter coil 131 for transmitting signals. Further, transmitter coil 131 and

receiver coils

130a, 130b, and 130c may be interchanged depending on its connection to microcontroller 135 in the sensing circuit. When the positioning element 120 moves from the rest position, the coils are supplied with an equivalent voltage for the operation of the coils.

The sensing circuit is constructed on a printed circuit board as shown in fig. 5 b. In the present embodiment, the printed circuit board of the sensing element 130 is partially circular like "C" so that the movement of the positioning element 120 can be detected by the sensing element 130. When the user accelerates or decelerates the throttle of the vehicle, the bracket element 114 partially rotates from the rest position. The rotational movement of the carrier element 114 moves the positioning element 120 embodied therein. The motion of the bit element 120 is detected by the sensing circuit of the sensing element 130. The position of the positioning element 120 affects the signal received by each individual receive

coil

130a, 130b, and 130 c. Based on these received signals, an evaluation unit (e.g., a microcontroller 135 on a printed circuit board) calculates and generates a signal indicative of the position of the positional element 120. The position signal will be sent to the ECU (not shown) of the vehicle, which may be used for various purposes. The biasing member 112, when decelerated, retracts the movement of the carriage element 114 and returns the carriage element 114 to the rest position.

In one embodiment, the ECU may receive a signal indicative of the position of the positioning element 120 and may send a signal to an operating member (not shown) to open and close a throttle valve (not shown) of the engine according to the position of the positioning element 120. In this case, a mechanical cable connecting the throttle valve from the hand throttle valve 200 is not required, because the throttle valve is operated by the operating member (which may be an electric motor in particular) upon receiving a signal from the ECU.

It is therefore an advantage of the present invention to provide a sensor 100 for sensing acceleration and deceleration positions of a hand throttle of a vehicle. Specifically, the sensor 100 is configured on a hand throttle of a two-or three-wheeled vehicle for sensing hand throttle position. Further, the sensor 100 is provided as a sensor that contactlessly detects the position of the throttle valve. Moreover, the sensor 100 is economical, simple in construction and robust in construction. The position sensing based on the induction circuit has an advantage of preventing a change in a signal due to an external magnetic field observed in the magnetic field detection circuit.

The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The embodiment was chosen and described in order to best explain the principles of the invention and its practical application, and to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. It should be understood that various omissions and substitutions of equivalents are contemplated as may be suggested or provided, but such omissions and substitutions are intended to cover the application or embodiment without departing from the spirit or scope of the claims of the present invention.

Claims

1. A hand throttle sensor 100 for sensing a position of a rotating element of a hand throttle 200, the hand throttle sensor 100 comprising:

a positioning element 120 arranged on the circumference of the rotating assembly 110 of the hand throttle 200;

a sensing element 130 disposed inside a housing 132 of the hand throttle 200, the sensing element 130 being disposed adjacent and coaxially with the rotation assembly 110;

wherein when rotating the rotating assembly 110, the positioning element 120 moves relative to the rotating assembly 110 and the relative position of the positioning element 120 from its rest position is detected by the sensing circuitry of the sensing element 130.

2. The hand throttle sensor 100 of claim 1, wherein the rotation assembly 110 includes a bracket element 114 and a biasing member 112, the bracket element 114 being connected to the hand throttle 200 and rotating when the occupant accelerates or decelerates the hand throttle 200.

3. The hand throttle sensor 100 of claim 1, wherein the sensing element 130 is disposed adjacent and coaxially with the rotation assembly 110 inside a housing 132.

4. The hand throttle sensor 100 of claim 1, wherein the sensing element 130 is an inductive circuit to inductively detect movement of the positioning element 120 relative to the bracket element 114.

5. The hand throttle sensor 100 of claims 1 and 2, characterized in that the positioning element 120 is integrally connected to the bracket element 114.

6. The hand throttle sensor 100 of claims 1 and 2, characterized in that the positioning element 120 is arranged inside a protruding portion 118 extending radially outward from the holder element 114.

7. The hand throttle sensor 100 of claims 1 and 2, characterized in that the positioning element 120 is a cursor segment arranged inside the protruding portion 118, the cursor segment moving relatively to the holder element 114.

8. The hand throttle sensor 100 of claim 1, wherein the sensing element 130 is "C" shaped.