CN212473629U - Multifunctional steering wheel control device - Google Patents
Multifunctional steering wheel control device Download PDFInfo
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- CN212473629U CN212473629U CN202020184058.7U CN202020184058U CN212473629U CN 212473629 U CN212473629 U CN 212473629U CN 202020184058 U CN202020184058 U CN 202020184058U CN 212473629 U CN212473629 U CN 212473629U
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Abstract
The utility model discloses a multi-functional steering wheel controlling means installs in the steering wheel, including heating control module, heating control module includes heating interface unit, heating drive unit, temperature acquisition unit and main control chip unit, heating interface unit includes four connecting terminal, heating interface unit passes through two connecting terminal and heater strip electric connection, heating interface unit is through other two connecting terminal and the temperature sensor electric connection of installing on the heater strip. The utility model discloses a multi-functional steering wheel controlling means, it has can integrate heating control module, button touch identification module and touch vibration feedback module in the function of an organic whole.
Description
Technical Field
The utility model belongs to the technical field of steering wheel device, concretely relates to multi-functional steering wheel controlling means.
Background
At present, a multifunctional key switch is arranged on a vehicle steering wheel in the market, and the multifunctional switch mainly adopts a traditional mechanical switch and a novel touch switch. The traditional mechanical switch has a press recovery type, a dial type and a roller type, but the effective output modes of the switch are all resistance output modes. The main output mode of the novel touch switch is capacitance variation, and the novel touch switch needs to be identified and converted into a key state by a control module. The steering wheel heating function can be realized by a plurality of vehicles on the market, but the multifunctional switch and the steering wheel heating function are respectively realized by two control units of the vehicles, so that the defects of overstaffed control modules on the vehicles, high research and development cost, low vehicle space utilization rate and the like are caused.
Because the existing multifunctional switch for the vehicle, the traditional mechanical switch or the novel touch switch only realizes that one function of the switch is difficult to meet the requirements of development of modern vehicles and driving comfort.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a multi-functional steering wheel control device, which has a function that can integrate a heating control module, a key touch recognition module, and a touch vibration feedback module.
Another object of the present invention is to provide a multifunctional steering wheel control device, which has the advantages of single module, multifunction, low cost, miniaturization, etc.
In order to achieve the above object, the utility model provides a multi-functional steering wheel controlling means installs in the steering wheel, include:
the heating control module comprises a heating interface unit, a heating driving unit, a temperature acquisition unit and a main control chip unit, wherein the heating interface unit comprises four connecting terminals, the heating interface unit is electrically connected with the heating wire through two connecting terminals, and the heating interface unit is electrically connected with a temperature sensor arranged on the heating wire through the other two connecting terminals;
the key touch identification module comprises a capacitance touch layer interface unit, a capacitance sensing acquisition unit and a whole vehicle interface unit, wherein the capacitance touch layer interface unit is electrically connected with the capacitance sensing acquisition unit, and the capacitance sensing acquisition unit is electrically connected with the main control chip unit;
the touch vibration feedback module comprises a vibration interface unit and a vibration motor driving unit, wherein the vibration interface unit is electrically connected with the vibration motor driving unit, and the vibration motor driving unit is electrically connected with the main control chip unit.
As a further preferable technical solution of the above technical solution, the main control chip unit is electrically connected to the heating interface unit through the heating driving unit, and converts the PWM signal sent by the main control chip unit into a power signal through the heating driving unit and then into heat on the heating wire.
As a further preferred technical solution of the above technical solution, the temperature sensor is electrically connected to the main control chip unit sequentially through the heating interface unit and the temperature acquisition unit, and converts a parameter measured by the temperature sensor into a voltage signal and obtains a temperature value.
As a further preferable technical solution of the above technical solution, the capacitive touch layer interface unit includes connectors and surface capacitance layers, and the number of the connectors is the same as the number of the surface capacitance layers; the capacitance sensing acquisition unit comprises capacitance sensing chips, and the number of the capacitance sensing chips is the same as that of the connectors.
As a further preferred technical solution of the above technical solution, the capacitance sensing acquisition unit is electrically connected to the vehicle interface unit through the main control chip unit, and is configured to acquire a capacitance variation amount of a touch area of the surface capacitance layer and convert the capacitance variation amount into a touch state digital quantity and a capacitance variation digital quantity.
As a further preferable technical solution of the above technical solution, the vibration interface unit is electrically connected to the vibration motor, and the number of pins of the vibration interface unit is twice that of the vibration motor.
As a further preferable technical solution of the above technical solution, the capacitance sensing chip of the capacitance sensing acquisition unit is a CAP1166 chip.
As a further preferable technical solution of the above technical solution, the main control chip unit is electrically connected to the vibration motor sequentially through the vibration motor driving unit and the vibration interface unit, the main control chip unit sends a vibration control signal according to a touch state, the duration of the vibration motor is 1s, and the vibration motor vibrates 1 time per touch.
As a further preferable technical solution of the above technical solution, the multi-functional steering wheel control device further includes a circuit board, and the heating control module, the key touch recognition module, and the touch vibration feedback module are mounted on the circuit board.
As a further preferable mode of the above-described mode, the multi-function steering wheel control device further includes a rectangular housing, and the circuit board is mounted on the rectangular housing.
Drawings
Fig. 1 is a schematic structural diagram of a multifunctional steering wheel control device according to the present invention.
The reference numerals include: 1. a heating interface unit; 2. a heating drive unit; 3. a temperature acquisition unit; 4. A capacitive touch layer interface unit; 5. a capacitive sensing acquisition unit; 6. a vibration interface unit; 7. a vibration motor driving unit; 8. a main control chip unit; 9. a vehicle interface unit; 10. a circuit board; 11. a rectangular housing.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.
The utility model discloses a multi-functional steering wheel controlling means combines preferred embodiment below, further describes utility model's concrete embodiment.
Referring to fig. 1 of the drawings, fig. 1 is a schematic structural diagram of a multifunctional steering wheel control device according to the present invention.
In the embodiments of the present invention, those skilled in the art will note that the temperature sensor, heater wire, etc. according to the present invention can be regarded as the prior art.
Preferred embodiments.
The utility model discloses a multi-functional steering wheel controlling means installs in the steering wheel, include:
the heating control module (not shown) comprises a heating interface unit 1, a heating driving unit 2, a temperature acquisition unit 3 and a main control chip unit 8, wherein the heating interface unit 1 comprises four connecting terminals, the heating interface unit 1 is electrically connected with the heating wires through two connecting terminals, and the heating interface unit 1 is electrically connected with temperature sensors arranged on the heating wires through the other two connecting terminals;
the key touch identification module (not shown) comprises a capacitance touch layer interface unit 4, a capacitance sensing acquisition unit 5 and a whole vehicle interface unit 9, wherein the capacitance touch layer interface unit 4 is electrically connected with the capacitance sensing acquisition unit 5, and the capacitance sensing acquisition unit 5 is electrically connected with the main control chip unit 8;
a touch vibration feedback module (not shown), the touch vibration feedback module includes a vibration interface unit 6 and a vibration motor driving unit 7, the vibration interface unit 6 is electrically connected with the vibration motor driving unit 7, and the vibration motor driving unit 7 is electrically connected with the main control chip unit 8.
Specifically, the main control chip unit 8 is electrically connected to the heating interface unit 1 through the heating driving unit 2, and converts the PWM signal sent by the main control chip unit 8 into a power signal through the heating driving unit 2 and then into heat on the heating wire.
More specifically, the temperature sensor is electrically connected with the main control chip unit 8 sequentially through the heating interface unit 1 and the temperature acquisition unit 3, and converts parameters measured by the temperature sensor into voltage signals and obtains a temperature value.
Further, the capacitive touch layer interface unit 4 includes connectors and surface capacitance layers, and the number of the connectors is the same as that of the surface capacitance layers; the capacitance sensing acquisition unit 5 comprises capacitance sensing chips, and the number of the capacitance sensing chips is the same as that of the connectors.
Furthermore, the capacitance sensing acquisition unit 5 is electrically connected with the whole vehicle interface unit 9 through the main control chip unit 8, and is used for acquiring capacitance variation of a touch area of the surface capacitance layer and converting the capacitance variation into touch state digital quantity and capacitance variation digital quantity.
Preferably, the vibration interface unit 6 is electrically connected to the vibration motor, and the number of pins of the vibration interface unit 6 is twice that of the vibration motor.
Preferably, the capacitance sensing chip of the capacitance sensing acquisition unit 5 is a CAP1166 chip.
Preferably, the main control chip unit 8 is electrically connected to the vibration motor sequentially through the vibration motor driving unit 7 and the vibration interface unit 6, the main control chip unit 8 sends a vibration control signal (PWM signal) according to the touch state, the duration of the vibration motor is 1s, and the vibration motor vibrates 1 time per touch.
The vibration motor driving unit 7 can be realized by adopting a motor driving chip mode or a half-bridge circuit formed by MOSFETs.
Preferably, the touch state includes touch and no touch, the capacitance variation is the difference between two acquired values before and after touch, the touch state and the capacitance variation are stored in the capacitance sensing acquisition unit 5, the main control chip unit 8 communicates with the capacitance sensing acquisition unit 5 through a line LEH, and the communication mode is SPI or I2C. Main control chip unit 8 passes through SPI or I2C bus configuration capacitance sensing acquisition unit 5 to read touch state or touch capacitance difference, main control chip unit 8 saves according to the touch state that reads, and pass through line LHI2 with the CAN bus mode put in order car interface unit 9 connects, finally put in order car interface unit 9 sends the touch state to on the whole car bus.
Preferably, there is a disadvantage in the multifunctional steering wheel switch using a touch manner: the operator can not confirm whether the touch keys are actually effective or not at the first time, so that the touch vibration reflection module can be used for interaction between the multifunctional steering wheel control device and the operator.
Preferably, the multifunctional steering wheel control apparatus further includes a circuit board 10, and the heating control module, the key touch recognition module and the touch vibration feedback module are mounted on the circuit board 10.
Preferably, the multifunctional steering wheel control device further comprises a rectangular housing 11, and the circuit board 10 is mounted (including screws and interface clamping) on the rectangular housing 11.
It is worth mentioning that the technical features such as the temperature sensor, the heater strip that the utility model discloses the patent application relates to should be regarded as prior art, and the concrete structure, the theory of operation and the control mode that may involve, the space arrangement mode of these technical features adopt the conventional selection in this field can, should not be regarded as the invention point of the utility model discloses a place, the utility model discloses do not further specifically expand the detailing.
It will be apparent to those skilled in the art that modifications and variations can be made in the above-described embodiments, or some features of the invention may be substituted or omitted, and any modification, substitution, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A multifunctional steering wheel control device is installed in a steering wheel, and is characterized by comprising:
the heating control module comprises a heating interface unit, a heating driving unit, a temperature acquisition unit and a main control chip unit, wherein the heating interface unit comprises four connecting terminals, the heating interface unit is electrically connected with the heating wire through two connecting terminals, and the heating interface unit is electrically connected with a temperature sensor arranged on the heating wire through the other two connecting terminals;
the key touch identification module comprises a capacitance touch layer interface unit, a capacitance sensing acquisition unit and a whole vehicle interface unit, wherein the capacitance touch layer interface unit is electrically connected with the capacitance sensing acquisition unit, and the capacitance sensing acquisition unit is electrically connected with the main control chip unit;
the touch vibration feedback module comprises a vibration interface unit and a vibration motor driving unit, wherein the vibration interface unit is electrically connected with the vibration motor driving unit, and the vibration motor driving unit is electrically connected with the main control chip unit.
2. The multifunctional steering wheel control device according to claim 1, wherein the main control chip unit is electrically connected to the heating interface unit through the heating driving unit, and the PWM signal sent by the main control chip unit is converted into a power signal through the heating driving unit and then converted into heat on the heating wire.
3. The multifunctional steering wheel control device according to claim 1, wherein the temperature sensor is electrically connected to the main control chip unit sequentially through the heating interface unit and the temperature acquisition unit, and converts parameters measured by the temperature sensor into voltage signals and obtains temperature values.
4. The multi-functional steering wheel control device of claim 1, wherein the capacitive touch layer interface unit comprises connectors and surface capacitive layers, the number of connectors being the same as the number of surface capacitive layers; the capacitance sensing acquisition unit comprises capacitance sensing chips, and the number of the capacitance sensing chips is the same as that of the connectors.
5. The multifunctional steering wheel control device according to claim 4, wherein the capacitance sensing acquisition unit is electrically connected to the vehicle interface unit through the main control chip unit, and is configured to acquire a capacitance variation of a touch area of the surface capacitance layer and convert the capacitance variation into a touch state digital quantity and a capacitance variation digital quantity.
6. The multi-function steering wheel control of claim 1, wherein the vibration interface unit is electrically connected to the vibration motor, and the number of pins of the vibration interface unit is twice that of the vibration motor.
7. The multifunctional steering wheel control device according to claim 5, wherein the capacitance sensing chip of the capacitance sensing acquisition unit is a CAP1166 chip.
8. The multifunctional steering wheel control device according to claim 6, wherein the main control chip unit is electrically connected to the vibration motor sequentially through the vibration motor driving unit and the vibration interface unit, the main control chip unit sends a vibration control signal according to a touch state, the vibration motor has a duration of 1s and vibrates 1 time per touch.
9. The multi-function steering wheel control of claim 1, further comprising a circuit board to which the heating control module, the key touch recognition module and the touch vibration feedback module are mounted.
10. The multi-function steering wheel control of claim 9, further comprising a rectangular housing, wherein the circuit board is mounted to the rectangular housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020184058.7U CN212473629U (en) | 2020-02-19 | 2020-02-19 | Multifunctional steering wheel control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020184058.7U CN212473629U (en) | 2020-02-19 | 2020-02-19 | Multifunctional steering wheel control device |
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| Publication Number | Publication Date |
|---|---|
| CN212473629U true CN212473629U (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020184058.7U Active CN212473629U (en) | 2020-02-19 | 2020-02-19 | Multifunctional steering wheel control device |
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| CN (1) | CN212473629U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720361A (en) * | 2021-07-20 | 2021-11-30 | 上海纳恩汽车技术股份有限公司 | Steering wheel of integrated heating function is from hand detection sensor |
| CN114340061A (en) * | 2022-02-11 | 2022-04-12 | 泰康电子有限公司 | Steering wheel switch integrated electric heating device |
| CN115140148A (en) * | 2022-06-24 | 2022-10-04 | 东风柳州汽车有限公司 | Touch control type steering wheel |
-
2020
- 2020-02-19 CN CN202020184058.7U patent/CN212473629U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720361A (en) * | 2021-07-20 | 2021-11-30 | 上海纳恩汽车技术股份有限公司 | Steering wheel of integrated heating function is from hand detection sensor |
| CN114340061A (en) * | 2022-02-11 | 2022-04-12 | 泰康电子有限公司 | Steering wheel switch integrated electric heating device |
| CN115140148A (en) * | 2022-06-24 | 2022-10-04 | 东风柳州汽车有限公司 | Touch control type steering wheel |
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Denomination of utility model: A multifunctional steering wheel control device Effective date of registration: 20220823 Granted publication date: 20210205 Pledgee: Agricultural Bank of China Limited by Share Ltd. Pinghu branch Pledgor: ZHEJIANG KESITAI INTELLIGENT TECHNOLOGY CO.,LTD. Registration number: Y2022980013340 |