CN210149286U - Wiper wiping system - Google Patents
Wiper wiping system Download PDFInfo
- Publication number
- CN210149286U CN210149286U CN201920651666.1U CN201920651666U CN210149286U CN 210149286 U CN210149286 U CN 210149286U CN 201920651666 U CN201920651666 U CN 201920651666U CN 210149286 U CN210149286 U CN 210149286U
- Authority
- CN
- China
- Prior art keywords
- wiper
- relay
- coupled
- circuit
- control mcu
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Electric Motors In General (AREA)
Abstract
A wiper wiping system comprising: the windscreen wiper control system comprises a windscreen wiper motor, a vehicle body controller and a control module; the control module comprises a main control MCU and a drive circuit, wherein the main control MCU is in communication connection with the vehicle body controller and is used for receiving water wiping request information sent by the vehicle body controller; the input end of the driving circuit is coupled with the main control MCU, and the output end of the driving circuit is coupled with the wiper motor; the main control MCU controls the driving circuit to drive the wiper motor according to the received wiper request information, so that the wiper motor drives the wiper to reciprocate on the glass surface. The control module is added on the basis of the original traditional wiper system and is of a modular structure, and the control module is communicated with the vehicle body controller, receives wiper request information sent by the vehicle body controller and controls the driving circuit to drive the wiper motor according to the wiper request information so as to enable the wiper motor to drive the wiper to reciprocate on the glass surface, and therefore the modular design of the wiper wiping system is achieved.
Description
Technical Field
The utility model relates to a windscreen wiper control technical field, concretely relates to system is cleaned to windscreen wiper.
Background
The conventional wiper wiping system for a vehicle is generally implemented by driving a relay on a vehicle body by a vehicle Body Controller (BCM), controlling high-speed and low-speed wiping switching of a motor, and driving a relay on the vehicle body by a cleaning solution required for wiping the wiper, which is generally driven by the BCM, i.e., a control logic and a water spraying logic of the wiper motor are generally completed by the vehicle body controller, and a circuit schematic diagram of the system is shown in fig. 1.
When the gear is in a high gear, the BCM controls the first relay to be switched to the positive pole of the F power supply, and controls the second relay to be switched to the C high gear;
when the gear is in a low gear, the BCM controls the first relay to be switched to the positive pole of the F power supply, and controls the second relay to be switched to the D low gear;
when the wiper stops, when the BCM receives the stop position signal and is low, the BCM drives the first relay to the E ground, and the motor has a braking effect and stops immediately. With the intelligent development of vehicles, a BCM or other controllers generally do not integrate a relay drive circuit, so that all functional components in the electronic and electrical structure of the whole vehicle cannot be modularized.
Disclosure of Invention
The application provides a windscreen wiper system of wiping can solve the problem that each functional unit can not the modularization in whole car electron electrical structure.
A wiper wiping system comprises a wiper motor, a vehicle body controller and a control module;
the control module comprises a main control MCU and a drive circuit, wherein the main control MCU is in communication connection with the vehicle body controller and is used for receiving water wiping request information sent by the vehicle body controller;
the input end of the driving circuit is coupled with the main control MCU, and the output end of the driving circuit is coupled with the wiper motor;
and the master control MCU controls the driving circuit to drive the wiper motor according to the received wiper request information so as to drive the wiper motor to reciprocate on the glass surface.
In one embodiment, the drive circuit includes a first relay and a second relay connected in series in the circuit.
In one embodiment, the main control MCU further has a first relay port and a second relay port, the power end of the first relay is coupled to the first relay port, the common contact of the first relay is coupled to the common contact of the second relay, the power end of the second relay is coupled to the second relay port, the normally closed contact of the second relay is coupled to the low-speed gear of the wiper motor, and the normally open contact of the second relay is coupled to the high-speed gear of the wiper motor.
In one embodiment, the control module further comprises a first relay adhesion diagnostic circuit and a second relay adhesion diagnostic circuit, the second relay adhesion diagnostic circuit comprising a first diagnostic circuit and a second diagnostic circuit; one end of the first relay adhesion diagnosis circuit is coupled to the main control MCU, and the other end of the first relay adhesion diagnosis circuit is coupled to a common contact of the first relay;
one end of the first diagnosis circuit is coupled to the main control MCU, and the other end of the first diagnosis circuit is coupled to the normally closed contact of the second relay;
one end of the second diagnosis circuit is coupled to the main control MCU, and the other end of the second diagnosis circuit is coupled to the normally open contact of the second relay.
In one embodiment, the windscreen wiper further comprises an induction module, the induction module is matched with the windscreen wiper motor and installed, the induction module is used for inducing signals according to one circle of unidirectional movement of the motor, the main control MCU is in signal connection with the induction module, and the induction module is further used for feeding back the induced signals to the main control MCU, so that the main control MCU judges the current position of the windscreen wiper according to the signals.
In one embodiment, the induction module comprises a double Hall sensor and a magnetic sheet;
the magnetic sheet is arranged on a worm wheel of the wiper motor, and the magnetic sheet and an output shaft of the wiper motor synchronously rotate;
the double-Hall sensor is installed at a position capable of sensing the magnetic sheet, the magnetic sheet is rotated by one week along with the motor, the double-Hall sensor senses a signal, and the main control MCU judges the current position of the wiper according to the signal fed back by the double-Hall sensor.
In one embodiment, the main control MCU determines that the wiper is at a stop position or a service position according to a signal fed back from the dual hall sensors, specifically:
and the master control MCU distinguishes the stop position and the service position of the wiper according to the signals fed back by the double Hall sensors.
In one embodiment, the control module further comprises a first anti-reverse connection circuit and a second anti-reverse connection circuit, wherein the input end of the first anti-reverse connection circuit is coupled with an FS pin of the vehicle body controller, and the output end of the first anti-reverse connection circuit is coupled with the power supply end of the first relay; the input end of the second reverse-connection preventing circuit is coupled with an FS pin of the automobile body controller, and the output end of the second reverse-connection preventing circuit is coupled with the power supply end of the second relay.
In one embodiment, the washing machine further comprises a washing pump motor, the control module further comprises a driving circuit for controlling the washing pump motor to work, the input end of the driving circuit is coupled with the main control MCU, and the output end of the driving circuit is coupled with the washing pump motor.
In one embodiment, the master control MCU has a communication interface, and communicates with the vehicle body controller through the communication interface to receive the water wiping request information sent by the vehicle body controller.
According to the wiper wiping system of the embodiment, the control module is added on the basis of the original traditional wiper system and is of a modular structure, the control module is communicated with the vehicle body controller, receives the wiping request information sent by the vehicle body controller and controls the driving circuit to drive the wiper motor according to the wiping request information so that the wiper motor drives the wiper to reciprocate on the glass surface, and therefore the modular design of the wiper wiping system is achieved.
Drawings
Fig. 1 is a schematic circuit diagram of a conventional wiper wiping system;
fig. 2 is an exploded view of the wiper motor in cooperation with a control module;
FIG. 3 is a schematic block diagram of a wiper wiping system;
fig. 4 is a schematic diagram of a control module circuit in the wiper wiping system.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment of the utility model provides an in, design the relay drive part of windscreen wiper motor into a modular control module group, this control module group is connected with the vehicle body controller communication, consequently, the vehicle body controller only need to give the control module group scrape water/wash the instruction can, realized the modular design of windscreen wiper system of cleaning.
The wiper wiping system of the present embodiment includes a wiper motor 1, a control module 2 and a vehicle body controller, wherein an explosion diagram of the wiper motor 1 and the control module 2 is shown in fig. 2.
The wiper motor 1 drives the wiper to reciprocate through the connecting rod structure, the connection relation among the wiper motor 1, the connecting rod structure and the wiper and the principle that the connecting rod structure converts the unidirectional motion of the wiper motor 1 into the reciprocating motion of the wiper on the glass surface are the prior art, the embodiment is not repeated, the automobile body controller is also the prior art, the embodiment is not repeated for the specific structure and the working principle of the automobile body controller, the improvement point of the embodiment is that under the premise that the original wiper motor 1 and the automobile body controller are not changed, the control module 2 is additionally arranged, the control module 2 is integrated with a main control MCU and a driving circuit, and the main control MCU is in communication connection with the automobile body controller and used for receiving the wiping request information sent by the automobile body controller; the input end of the driving circuit is coupled with the main control MCU, and the output end of the driving circuit is coupled with the wiper motor 1; the main control MCU controls the driving circuit to drive the wiper motor 1 according to the received wiping request information, so that the wiper motor 1 drives the wiper to reciprocate on the glass surface.
Compared with the high-speed and low-speed water-wiping switching of the relay control wiper motor 1 on the traditional vehicle body controller driven vehicle body, the control module 2 is integrated with a driving circuit, the control module 2 is an independent modular structure, the intelligent development of the vehicle is responded, and the modular design of a wiper wiping system is realized.
The following example describes the wiper wiping system from functional modules.
As shown in fig. 3, the control module includes a master MCU and a driving circuit, wherein the master MCU has a communication interface, such as a LIN communication interface, and communicates with the vehicle body controller through the communication interface to receive the wiper request information sent by the vehicle body controller; the driving circuit comprises a first relay and a second relay, and the first relay and the second relay are connected in series in the circuit.
Furthermore, the master control MCU is also provided with a first relay port and a second relay port, the power end of the first relay is coupled with the first relay port, the common contact of the first relay is coupled with the common contact of the second relay, the power end of the second relay is coupled with the second relay port, the normally closed contact of the second relay is coupled with the low-speed gear of the wiper motor, and the normally open contact of the second relay is coupled with the high-speed gear of the wiper motor.
Through the connection relation, when the vehicle body controller sends a high-speed gear request to the master control MCU through LIN communication, the master control MCU controls the conduction of the first relay through the first relay port, and simultaneously controls the second relay to be switched to the high-speed gear of the wiper motor through the second relay port; similarly, when the vehicle body controller sends a low-speed gear request to the master control MCU through LIN communication, the master control MCU controls the first relay to be conducted through the first relay port, and simultaneously, the master control MCU controls the second relay to be switched to the low-speed gear of the wiper motor through the second relay port.
In order to prevent the first relay and the second relay from being in the stuck state, the stuck state refers to: the first relay or the second relay is always in a normally open state or a normally closed state, and therefore the control module of the embodiment further comprises a first relay adhesion diagnosis circuit and a second relay adhesion diagnosis circuit.
Specifically, one end of the first relay adhesion diagnosis circuit is coupled to the main control MCU, and the other end of the first relay adhesion diagnosis circuit is coupled to a common contact of the first relay; the second relay adhesion diagnosis circuit comprises a first diagnosis circuit and a second diagnosis circuit, one end of the first diagnosis circuit is coupled to the main control MCU, and the other end of the first diagnosis circuit is coupled to the normally closed contact of the second relay; one end of the second diagnosis circuit is coupled to the main control MCU, and the other end of the second diagnosis circuit is coupled to the normally open contact of the second relay.
When the first relay is always in a driving state, the first relay adhesion diagnosis circuit acquires a high level and feeds the high level back to the main control MCU, so that the main control MCU can know that the first relay is in a failure state of the driving state according to the high level fed back by the first relay adhesion diagnosis circuit; similarly, when the first relay is always in the off state, the first relay adhesion diagnosis circuit acquires a low level and feeds the low level back to the main control MCU, so that the main control MCU can know that the first relay is in the failure state of the off state according to the low level fed back by the first relay adhesion diagnosis circuit.
The first relay and the second relay are connected in series in the circuit, so that the adhesion state of the second relay needs to be diagnosed when the first relay is in a driving state, specifically, when the second relay is always in the driving state, the first diagnostic circuit can acquire a high level, and the second diagnostic circuit can acquire a low level, so that the main control MCU can know the failure state of the second relay in the driving state according to the high level fed back by the first diagnostic circuit and the low level fed back by the second diagnostic circuit; similarly, when the second relay is always in the off state, the first diagnostic circuit acquires a low level, and the second diagnostic circuit acquires a high level, so that the main control MCU can know that the second relay is in the failure state of the off state according to the low level fed back by the first diagnostic circuit and the high level fed back by the second diagnostic circuit.
Therefore, the control module is in communication connection with the vehicle body controller, when the vehicle body controller issues a stop command to the control module, if the wiper is not in a stop position, the control module cannot stop the movement of the wiper immediately according to the received stop command, but can control the wiper to stop moving until the wiper is in the stop position. Based on this, in order to make the control module can realize obtaining the current position of windscreen wiper, this example still includes the response module, this response module and windscreen wiper motor cooperation installation, the response module is used for responding to out the signal according to motor unidirectional motion a week, master control MCU and response module signal connection, the response module still is used for feeding back the signal of responding to master control MCU to make master control MCU judge the current position of windscreen wiper according to this signal.
Preferably, the main control MCU distinguishes the stop position and the service position of the wiper according to a signal fed back by the double Hall sensors, specifically, the induction module comprises the double Hall sensors and a magnetic sheet, the magnetic sheet is arranged on a worm wheel of the wiper motor, and the magnetic sheet and an output shaft of the wiper motor synchronously rotate; two hall sensor install the position that can respond to the magnetic sheet, two hall sensor refer to first hall sensor and second hall sensor, that is, two hall sensor comprise two hall sensor, and when the magnetic sheet was along with the rotatory week of windscreen wiper motor, the signal that first hall sensor responded to was first signal, the signal that second hall sensor responded to is the second signal, can realize the stop position of windscreen wiper and the differentiation of service position through first signal and second signal, wherein, stop position refers to the stop position of windscreen wiper when the windscreen wiper motor did not work, service position refers to when maintaining the windscreen wiper or changing the windscreen wiper, the position that the windscreen wiper was located.
For example, when the first signal is at a high level and the second signal is at a low level, it is determined that the wiper is at a stop position; when the second signal is at a high level and the first signal is at a low level, determining that the wiper is at a service position; therefore, when the vehicle body controller sends a stop signal, the main control MCU controls the wiper motor to stop working when recognizing that the wiper is at a stop position according to a signal fed back by the double Hall sensors; when the vehicle sends a service signal to the controller, the main control MCU controls the wiper motor to stop working when recognizing that the wiper is in a service position according to the signal fed back by the double Hall sensors.
Further, because the control module is in communication connection with the vehicle body controller, in order to prevent the control module from being disconnected from the vehicle body controller, the vehicle body controller cannot issue a control command to the control module and cannot control the wiper to work, based on the situation, the control module further comprises a first anti-reverse-connection circuit and a second anti-reverse-connection circuit, the input end of the first anti-reverse-connection circuit is coupled with an FS pin of the vehicle body controller, and the output end of the first anti-reverse-connection circuit is coupled with the power supply end of a first relay; the input end of the second reverse connection preventing circuit is coupled with an FS pin of the automobile body controller, and the output end of the second reverse connection preventing circuit is coupled with a power supply end of a second relay; therefore, under the condition that the communication between the vehicle body controller and the control module is failed, the vehicle body controller is at a low level through the FS pin, and the power supply ends of the first relay and the second relay are directly connected to be low through the first anti-reverse-connection circuit and the second anti-reverse-connection circuit, so that the first relay and the second relay are conducted, and the driving of the wiper motor is realized.
The wiper wiping system of the embodiment also comprises a washing pump motor, the control module also comprises a driving circuit for controlling the washing pump motor to work, the input end of the driving circuit is coupled with the main control MCU, and the output end of the driving circuit is coupled with the washing pump motor, so that the control module not only has the function of controlling the wiper motor to work, but also has the function of controlling the washing pump motor to work; in other embodiments, the driving circuit of the washing pump motor may also be designed independently of the control module, and the present embodiment does not limit the existence manner of the driving circuit of the washing pump motor.
Fig. 4 shows a circuit schematic diagram of a control module in the wiper wiping system of this embodiment, wherein the main control MCU has a type TLE9842, the first anti-reverse connection circuit is a branch formed by a diode D1, the second anti-reverse connection circuit is a branch formed by a diode D2, and other circuit structures are not described herein with reference to fig. 4.
The control module is a modularized structure and is communicated with the vehicle body controller to receive the wiping and washing request information sent by the vehicle body controller and control the wiper motor and the washing pump motor to work according to the wiping and washing request information, so that the modularized design of the wiper wiping system is realized.
It is right to have used specific individual example above the utility model discloses expound, only be used for helping to understand the utility model discloses, not be used for the restriction the utility model discloses. To the technical field of the utility model technical personnel, the foundation the utility model discloses an idea can also be made a plurality of simple deductions, warp or replacement.
Claims (10)
1. A wiper wiping system, comprising: the windscreen wiper control system comprises a windscreen wiper motor, a vehicle body controller and a control module;
the control module comprises a main control MCU and a drive circuit, wherein the main control MCU is in communication connection with the vehicle body controller and is used for receiving water wiping request information sent by the vehicle body controller;
the input end of the driving circuit is coupled with the main control MCU, and the output end of the driving circuit is coupled with the wiper motor;
and the master control MCU controls the driving circuit to drive the wiper motor according to the received wiper request information so as to drive the wiper motor to reciprocate on the glass surface.
2. The wiper wiping system as defined in claim 1 wherein the drive circuit includes a first relay and a second relay connected in series in an electrical circuit.
3. The wiper wiping system according to claim 2 wherein the master MCU further has a first relay port and a second relay port, the power terminal of the first relay being coupled to the first relay port, the common contact of the first relay being coupled to the common contact of the second relay, the power terminal of the second relay being coupled to the second relay port, the normally closed contact of the second relay being coupled to the low speed gear of the wiper motor, the normally open contact of the second relay being coupled to the high speed gear of the wiper motor.
4. The wiper wiping system of claim 3 wherein the control module further comprises a first relay sticking diagnostic circuit and a second relay sticking diagnostic circuit, the second relay sticking diagnostic circuit comprising a first diagnostic circuit and a second diagnostic circuit;
one end of the first relay adhesion diagnosis circuit is coupled to the main control MCU, and the other end of the first relay adhesion diagnosis circuit is coupled to a common contact of the first relay;
one end of the first diagnosis circuit is coupled to the main control MCU, and the other end of the first diagnosis circuit is coupled to the normally closed contact of the second relay;
one end of the second diagnosis circuit is coupled to the main control MCU, and the other end of the second diagnosis circuit is coupled to the normally open contact of the second relay.
5. The wiper wiping system according to claim 1, further comprising an induction module, wherein the induction module is installed in cooperation with the wiper motor, the induction module is used for inducing a signal according to one-way movement of the motor, the master control MCU is in signal connection with the induction module, and the induction module is further used for feeding back the induced signal to the master control MCU, so that the master control MCU can judge the current position of the wiper according to the signal.
6. The wiper wiping system of claim 5 wherein the sensing module comprises a dual Hall sensor and a magnetic strip;
the magnetic sheet is arranged on a worm wheel of the wiper motor, and the magnetic sheet and an output shaft of the wiper motor synchronously rotate;
the double-Hall sensor is installed at a position capable of sensing the magnetic sheet, the magnetic sheet is rotated for one week along with the wiper motor, the double-Hall sensor senses a signal, and the main control MCU judges the current position of the wiper according to the signal fed back by the double-Hall sensor.
7. The wiper wiping system according to claim 6, wherein the main control MCU judges whether the wiper is at a stop position or a service position according to the signal fed back by the double Hall sensors, specifically:
and the master control MCU distinguishes the stop position and the service position of the wiper according to the signals fed back by the double Hall sensors.
8. The wiper wiping system of claim 2 wherein the control module further comprises a first anti-reverse circuit having an input coupled to the FS pin of the body controller and an output coupled to the power supply terminal of the first relay; the input end of the second reverse-connection preventing circuit is coupled with an FS pin of the automobile body controller, and the output end of the second reverse-connection preventing circuit is coupled with the power supply end of the second relay.
9. The wiper wiping system of claim 1 further comprising a wash pump motor, the control module further comprising a drive circuit for controlling operation of the wash pump motor, the drive circuit having an input coupled to the master MCU and an output coupled to the wash pump motor.
10. The wiper wiping system according to claim 1, wherein the master MCU has a communication interface, and the master MCU communicates with the vehicle body controller through the communication interface to receive the wiper request message transmitted from the vehicle body controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920651666.1U CN210149286U (en) | 2019-05-08 | 2019-05-08 | Wiper wiping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920651666.1U CN210149286U (en) | 2019-05-08 | 2019-05-08 | Wiper wiping system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210149286U true CN210149286U (en) | 2020-03-17 |
Family
ID=69758626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920651666.1U Active CN210149286U (en) | 2019-05-08 | 2019-05-08 | Wiper wiping system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210149286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114670786A (en) * | 2021-03-24 | 2022-06-28 | 北京新能源汽车股份有限公司 | Wiper lifting device and wiper lifting control method |
-
2019
- 2019-05-08 CN CN201920651666.1U patent/CN210149286U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114670786A (en) * | 2021-03-24 | 2022-06-28 | 北京新能源汽车股份有限公司 | Wiper lifting device and wiper lifting control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101296823B (en) | Windshield wiper system with a self-locking device that is active when the wiper drive is in a non-operating state | |
| US8581530B2 (en) | Electronic self-locking device for a windscreen wiping device | |
| US5157314A (en) | Windshield wiping system for motor vehicles | |
| US20130124011A1 (en) | Wiper motor control system for vehicle | |
| CN102574504A (en) | Drive control means | |
| CN210149286U (en) | Wiper wiping system | |
| CN101474983B (en) | Heavy-duty car CAN bus control system with auxiliary central control function | |
| CN101797913A (en) | Intelligent windscreen wiper system and controlling method thereof based on CAN/LIN bus | |
| CN102424033A (en) | Windscreen wiper control system based on singlechip | |
| CN1283502C (en) | Windshield wiper system activated by sensing rainwater | |
| CN112339711B (en) | Rear wiper with controllable wiping position | |
| CN102616209B (en) | Dual pneumatic motor synchronous window wiper for railway locomotive | |
| CN103220200A (en) | CAN (Controller Area Network/LIN (Local Interconnect Network) bus hybrid network topology structure of vehicle | |
| CN1962325A (en) | Electronic control windshield wiper | |
| CN111360817A (en) | Composite mobile robot control system and method | |
| CN101251748A (en) | Bus type automobile rain scrape control method and controller | |
| CN217124728U (en) | Vehicle intelligent driving and diagnosing system with gateway function | |
| CN101930232A (en) | Window glass lifter diagnosis system based on LIN bus | |
| CN201240336Y (en) | Vehicle CAN_BUS network system and automobile electric appliance component for the same | |
| CN208993753U (en) | A kind of wire-controlled steering system controller of intelligent automobile | |
| CN202574135U (en) | Double-pneumatic motor synchronizing windshield wiper for railway locomotive | |
| CN212738016U (en) | Automatic wiper control system with limping mode and automobile | |
| US5754020A (en) | Wiper-washer system for vehicles | |
| CN209813926U (en) | Full-automatic windscreen wiper control system of railway vehicle | |
| CN107107872B (en) | Wiper system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |