CN207644343U - A kind of heavy vehicle windshield heating control system - Google Patents
A kind of heavy vehicle windshield heating control system Download PDFInfo
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- CN207644343U CN207644343U CN201721660220.2U CN201721660220U CN207644343U CN 207644343 U CN207644343 U CN 207644343U CN 201721660220 U CN201721660220 U CN 201721660220U CN 207644343 U CN207644343 U CN 207644343U
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- thermistor
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- control system
- relay
- heating
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Abstract
The utility model is related to a kind of heavy vehicle windshield heating control systems comprising have controller, relay, thermistor and heater switch；Include microcontroller and accessory circuit, analogue collection module, On-off signal output circuit, bus interface and power module in the controller；The analogue collection module is coupled with thermistor, the temperature value analog quantity for collecting thermistor transmission；The power module is coupled with relay, and power supply is provided for heating part for passing through relay；The On-off signal output module is coupled with thermistor and heater switch, for controlling each road power supply opening and closing；The bus interface with vehicle bus for being coupled；The microcontroller and accessory circuit are sent a signal to for handling collected data in controller other each components.
Description
Technical field
The utility model is related to a kind of heating control system, especially a kind of heavy vehicle windshield computer heating control system
System.
Background technology
The defrosting of vehicle windscreen is of crucial importance for the safety traffic of vehicle, especially heavy vehicle, due to its gear
Wind transparency area is big, and vehicle blind spot is more, and the effect of defrosting and time directly affect itself safety with other people.
Currently, most heavy vehicles heat glass using heater internal in driving, to reach
The effect of defrosting.There is clearly disadvantageous in defrosting efficiency and defrosting area for this mode.Part special vehicle and military vehicle
Then glass is heated using heating wire, such mode has efficient, the big advantage of defrosting area.But it is such at present to remove
The control device of white mode is also all based on Analog Circuit Design, and it is not high that there are temperature control precisions, versatility and autgmentability difference
Problem.
Utility model content
For the technical problem for solving in above-mentioned background technology, the utility model provides one kind and can accurately monitor, control glass
The heavy vehicle windshield heating control system of glass temperature, the system is by controller, heater switch, thermistor, heating event
Hinder indicator light, heating relay and related harness composition.The system is using controller as core, using accurate algorithm, to vehicle
The temperature of each piece of windshield acquire, compare and analyze in real time, the heating according to obtained data control windshield
Whether.
In the utility model, controller is used for the driving of temperature acquisition, automatic control function and related load；Heater switch
Work for control system；The resistance value of thermistor can quickly change according to the variation of environment temperature, to according to its ginseng
Number curve calculates glass temperature；Fuser malfunction indicator light is used to indicate working state of system and malfunction；Heat relay
For driving electric heating wire to work.
Specifically, heavy vehicle windshield heating control system described in the utility model comprising have controller,
Relay, thermistor and heater switch；Include microcontroller and accessory circuit, analog acquisition mould in the controller
Block, On-off signal output circuit, bus interface and power module；The analogue collection module is coupled with thermistor, is used
In the temperature value analog quantity for collecting thermistor transmission；The power module and relay couple, for being to add by relay
Hot portion provides power supply；The On-off signal output module is coupled with thermistor and heater switch, for controlling each road power supply
Opening and closing；The bus interface with vehicle bus for being coupled；The microcontroller and accessory circuit are collected for handling
Data, and send a signal in controller other each components.
In the present embodiment, the thermistor is divided into two groups, respectively side block wind glass thermistor and front windshield glass
Glass thermistor, two groups of thermistors are coupled with two relays respectively, and are individually controlled.
In the present embodiment, the control system further includes having indicator light, indicator light coupling and controller, for adding
It is lit when hot.
In the present embodiment, the side block wind glass thermistor is divided into Rt1 and Rt2 groups, the front windshield temperature-sensitive
Resistance is respectively Rt3, Rt4, Rt5 and Rt6 group.
In the present embodiment, the initial value of the controller is "ON", when the analog quantity of thermistor is in normal range (NR)
When, then the analog quantity is collected and treated in the controller；When the analog quantity of thermistor exceeds normal range (NR), then the simulation
Amount is not involved in the data collection of controller.
In the present embodiment, the thermistor Rt1 exceeds just with the analog quantity of Rt2 groups or Rt3, Rt4, Rt5 and Rt6 group
Normal range, then this group of thermistor stopping heating.
In the present embodiment, the temperature simulation amount minimum temperature that the controller is collected is less than less than 35 DEG C, maximum temperature
At 55 DEG C, controller control relay makes heating part be heated；When minimum temperature be more than or equal to 35 DEG C when, controller control after
Electric appliance makes heating part stop heating.
In the present embodiment, the indicator light is prompted when one group of thermistor stops heating into line flicker for playing
Effect.
Description of the drawings
Fig. 1 is control system schematic diagram described in the utility model.
Main element symbol description：
1 side block wind glass thermistor
2 front windshield thermistors
3 controllers
4 heater switch
5 indicator lights
6 front windshields heat relay
7 side windshield heat relay
Specific implementation mode
With reference to embodiments and the technical solution of the utility model is described in detail in respective drawings, so that this field
Technical staff can be more clearly understood the embodiment of the utility model, but and be not so limited the protection model of the utility model
It encloses.
Heavy vehicle windshield heating control system described in the utility model comprising have controller, relay, heat
Quick resistance and heater switch；Include that microcontroller and accessory circuit, analogue collection module, switching value are defeated in the controller
Enter output circuit, bus interface and power module；The analogue collection module is coupled with thermistor, for collecting temperature-sensitive electricity
Hinder the temperature value analog quantity of transmission；The power module is coupled with relay, and power supply is provided for heating part for passing through relay；
The On-off signal output module is coupled with thermistor and heater switch, for controlling each road power supply opening and closing；The bus
Interface with vehicle bus for being coupled；The microcontroller and accessory circuit transmit letter for handling collected data
Number to controller in other each components.
In the present embodiment, the thermistor is divided into two groups, respectively side block wind glass thermistor and front windshield glass
Glass thermistor, two groups of thermistors are coupled with two relays respectively, and are individually controlled.
In the present embodiment, the control system further includes having indicator light, indicator light coupling and controller, for adding
It is lit when hot.
In the present embodiment, the side block wind glass thermistor is divided into Rt1 and Rt2 groups, the front windshield temperature-sensitive
Resistance is respectively Rt3, Rt4, Rt5 and Rt6 group.
In the present embodiment, the initial value of the controller is "ON", when the analog quantity of thermistor is in normal range (NR)
When, then the analog quantity is collected and treated in the controller；When the analog quantity of thermistor exceeds normal range (NR), then the simulation
Amount is not involved in the data collection of controller.
In the present embodiment, the thermistor Rt1 exceeds just with the analog quantity of Rt2 groups or Rt3, Rt4, Rt5 and Rt6 group
Normal range, then this group of thermistor stopping heating.
In the present embodiment, the temperature simulation amount minimum temperature that the controller is collected is less than less than 35 DEG C, maximum temperature
At 55 DEG C, controller control relay makes heating part be heated；When minimum temperature be more than or equal to 35 DEG C when, controller control after
Electric appliance makes heating part stop heating.
In the present embodiment, the indicator light is prompted when one group of thermistor stops heating into line flicker for playing
Effect.
Rt is thermistor in Fig. 1, and resistance value changes with the variation of environment temperature, passes through software algorithm and thermistor
Collected resistance can be converted into temperature by parameter curve.Rt1 is left side glass windshield thermistor, and Rt2 keeps off for right side
Wind glass thermistor, as one group, group heating is controlled side windshield by relay 4.Rt3 and Rt4 is the left front glass that keeps out the wind
Glass thermistor, Rt5 and Rt6 are right front windshield thermistor, and as one group, which heats by relay front windshield
5 controls.
After vehicle power supply is opened, controller 3 starts to acquire the resistance value of each thermistor in real time, by calculating resistance
Value is converted into temperature information, sends temperature information and fault message by SAE1939 bus interface by the preset period
It goes out.Controller 3 during collection voltages, have breakdown judge ability, when detect the voltage of some be infinity
When, then it is assumed that road thermistor Rt open circuits, the temperature of the windshield where the collected road is not involved in control, with same
The temperature of another block of glass is used as reference to control it in group.If all detecting failure in same group, stop the group
Heating.It is any break down all the way while, fuser malfunction indicator light 5 starts to flicker, remind driver there are failures.
Windshield heats the opening of relay 6 and 7 and closing is controlled by heater switch 4 and glass temperature simultaneously.Add
When thermal switch 5 is closed, 3 acquisitions of controller send temperature and fault message, do not control relay.When heater button is opened,
For each group of windshield, wherein minimum temperature is less than 35 DEG C, when maximum temperature is less than 55 DEG C, opens the group relay, open
Begin heating glass；If this group of minimum temperature is more than or equal to 35 DEG C, the group relay is closed, stops heating；When this group of lowest temperature
When spending that 30 DEG C of decreasing value is following and maximum temperature is less than 55 DEG C, the group relay is reopened, is recycled with this.Controller 3 detects
When being more than 55 DEG C to any temperature all the way, the group relay is closed, stops heating glass, until temperature drops to above range
It is reopened when interior.When any group of glass heats, fuser malfunction indicator light 5 is lighted, and driver is prompted to heat；Heating event
The heating instruction function priority for hindering indicator light 5 is less than fault indication function, when existing simultaneously heated condition and malfunction,
Preferential display malfunction.
It the above is only and preferred embodiments of the present invention are described, not by the technical side of the utility model
Case limited to this, those skilled in the art on the basis of the design of the major technique of the utility model made by any known deformation
The claimed technology scope of the utility model is belonged to, the specific protection domain of the utility model is with the record of claims
Subject to.
Claims (8)
1. a kind of heavy vehicle windshield heating control system, which is characterized in that include controller, relay, temperature-sensitive electricity
Resistance and heater switch；
Include microcontroller and accessory circuit in the controller, analogue collection module, On-off signal output circuit, total
Line interface and power module；
The analogue collection module is coupled with thermistor, the temperature value analog quantity for collecting thermistor transmission；
The power module is coupled with relay, and power supply is provided for heating part for passing through relay；
The On-off signal output module is coupled with thermistor and heater switch, for controlling each road power supply opening and closing；
The bus interface with vehicle bus for being coupled；
The microcontroller and accessory circuit are sent a signal to for handling collected data in controller other each components.
2. heavy vehicle windshield heating control system as described in claim 1, which is characterized in that the control system is also
Include indicator light, which is coupled to controller, for being lit when heated.
3. heavy vehicle windshield heating control system as claimed in claim 2, which is characterized in that the thermistor point
It it is two groups, respectively side block wind glass thermistor and front windshield thermistor, thermistor described in two groups is respectively with two
A relay coupling, and individually controlled.
4. heavy vehicle windshield heating control system as claimed in claim 3, which is characterized in that the side windshield
Thermistor is divided into Rt1 and Rt2 groups, and the front windshield thermistor is respectively Rt3, Rt4, Rt5 and Rt6 group.
5. heavy vehicle windshield heating control system as claimed in claim 4, which is characterized in that at the beginning of the controller
Initial value is "ON", and when the analog quantity of thermistor is in normal range (NR), then the analog quantity is collected and treated in the controller；
When the analog quantity of thermistor exceeds normal range (NR), then the analog quantity is not involved in the data collection of controller.
6. heavy vehicle windshield heating control system as claimed in claim 4, which is characterized in that the thermistor
Rt1 exceeds normal range (NR) with the analog quantity of Rt2 groups or Rt3, Rt4, Rt5 and Rt6 group, then this group of thermistor stops heating.
7. heavy vehicle windshield heating control system as claimed in claim 6, which is characterized in that the indicator light is one
Into line flicker when group thermistor stops heating, for playing suggesting effect.
8. heavy vehicle windshield heating control system as claimed in claim 4, which is characterized in that the controller is collected
Temperature simulation amount minimum temperature be less than 35 DEG C, maximum temperature be less than 55 DEG C when, controller control relay so that heating part is carried out
Heating；When minimum temperature is more than or equal to 35 DEG C, controller control relay makes heating part stop heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721660220.2U CN207644343U (en) | 2017-12-01 | 2017-12-01 | A kind of heavy vehicle windshield heating control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721660220.2U CN207644343U (en) | 2017-12-01 | 2017-12-01 | A kind of heavy vehicle windshield heating control system |
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| Publication Number | Publication Date |
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| CN207644343U true CN207644343U (en) | 2018-07-24 |
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| CN201721660220.2U Active CN207644343U (en) | 2017-12-01 | 2017-12-01 | A kind of heavy vehicle windshield heating control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111619415A (en) * | 2019-02-27 | 2020-09-04 | 广州汽车集团股份有限公司 | Fault detection method and device for heating temperature sensor of automobile seat |
| CN112822805A (en) * | 2019-11-15 | 2021-05-18 | 中车唐山机车车辆有限公司 | Windshield glass electric heating control circuit, control method and system |
| CN113406415A (en) * | 2021-06-07 | 2021-09-17 | 广州小鹏自动驾驶科技有限公司 | Detection method and device for defrosting and demisting device of vehicle-mounted camera |
-
2017
- 2017-12-01 CN CN201721660220.2U patent/CN207644343U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111619415A (en) * | 2019-02-27 | 2020-09-04 | 广州汽车集团股份有限公司 | Fault detection method and device for heating temperature sensor of automobile seat |
| CN111619415B (en) * | 2019-02-27 | 2021-10-22 | 广州汽车集团股份有限公司 | Fault detection method and device for heating temperature sensor of automobile seat |
| CN112822805A (en) * | 2019-11-15 | 2021-05-18 | 中车唐山机车车辆有限公司 | Windshield glass electric heating control circuit, control method and system |
| WO2021093077A1 (en) * | 2019-11-15 | 2021-05-20 | 中车唐山机车车辆有限公司 | Windshield glass electric heating control circuit, control method and system |
| CN112822805B (en) * | 2019-11-15 | 2022-05-17 | 中车唐山机车车辆有限公司 | Windshield glass electric heating control circuit, control method and system |
| CN113406415A (en) * | 2021-06-07 | 2021-09-17 | 广州小鹏自动驾驶科技有限公司 | Detection method and device for defrosting and demisting device of vehicle-mounted camera |
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