CN114074534A - Control method and device for defrosting of vehicle - Google Patents

Control method and device for defrosting of vehicle Download PDF

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Publication number
CN114074534A
CN114074534A CN202010838101.1A CN202010838101A CN114074534A CN 114074534 A CN114074534 A CN 114074534A CN 202010838101 A CN202010838101 A CN 202010838101A CN 114074534 A CN114074534 A CN 114074534A
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China
Prior art keywords
vehicle
heating
engine
gear
front windshield
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CN202010838101.1A
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Chinese (zh)
Inventor
唐明
田磊
蔡士波
张素霞
孟芳
胡忠辉
董小刚
田川
牛世杰
赵嘉彪
张孟恩
赵雪苗
李刚
张林林
田潮
谷士杰
王玉明
盛志会
刘强
段江涛
申晴
王越
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Great Wall Motor Co Ltd
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Great Wall Motor Co Ltd
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Priority to CN202010838101.1A priority Critical patent/CN114074534A/en
Publication of CN114074534A publication Critical patent/CN114074534A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J1/00—Windows; Windscreens; Accessories therefor
    • B60J1/002—Windows; Windscreens; Accessories therefor with means for clear vision, e.g. anti-frost or defog panes, rain shields
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/023—Cleaning windscreens, windows or optical devices including defroster or demisting means
    • B60S1/026—Cleaning windscreens, windows or optical devices including defroster or demisting means using electrical means

Abstract

The invention is suitable for the technical field of automobile control, and provides a control method and a device for defrosting a vehicle, wherein the method comprises the following steps: when the vehicle is in a cold state, a switch of a heating electric wire corresponding to the heating function of the front windshield glass is turned on to rapidly defrost the vehicle; when the vehicle is in a heat engine state, the heating power of the heating wire corresponding to the heating function of the front windshield glass is reduced according to the principle of electric quantity balance of the generator, so that the high-power front windshield heating glass can be applied to the vehicle of the small-power-generation generator of the small-displacement engine, and the small-power-generation generator of the small-displacement engine can quickly defrost in a cold area.

Description

Control method and device for defrosting of vehicle
Technical Field
The invention belongs to the technical field of automobile control, and particularly relates to a control method and device for vehicle defrosting.
Background
The frost and fog on the front windshield of the automobile can affect the driving safety, and particularly in cold weather, the automobile needs to be defrosted when being placed outside.
For medium and low-end vehicles, due to the fact that the displacement of the medium and low-end vehicles is low, the electric heating power of the front windshield heating glass cannot be increased under the condition that the electric balance is met, the purpose of defrosting can be achieved only after the water temperature of an engine is increased, defrosting time is long, and the requirement of customers for quick defrosting cannot be met.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and an apparatus for controlling vehicle defrosting, which aim to solve the problem that in the prior art, a vehicle with a low displacement has a long defrosting time.
To achieve the above object, a first aspect of embodiments of the present invention provides a control method for defrosting a vehicle, including:
when the vehicle is in a cold state, a switch of a heating electric wire corresponding to the heating function of the front windshield glass is turned on to rapidly defrost the vehicle;
and when the vehicle is in a heat engine state, the heating power of the heating electric wire corresponding to the heating function of the front windshield glass is reduced according to the electric quantity balance principle of the generator.
Optionally, the method further includes: when the vehicle is in a cold state, if the condition that an air blower corresponding to the air conditioner defrosting function of the vehicle is started and a heating electric wire corresponding to the front windshield heating function is not started is detected, the starting state of the air blower and the closing state of the heating electric wire are kept.
Optionally, when the vehicle is in a cold state, the switch for turning on the heating wire corresponding to the front windshield glass heating function includes:
when a vehicle is in a P-gear or N-gear idling working condition, if the situation that an air blower corresponding to an air conditioner defrosting function of the vehicle is not started and a heating electric wire corresponding to a front windshield glass heating function is started is detected, and the current water temperature of an engine is not higher than a first preset temperature, keeping the starting state of the heating electric wire and the closing state of the air blower;
when the vehicle is in a P-gear or N-gear idling working condition, an air blower corresponding to an air conditioner defrosting function of the vehicle and a heating electric wire corresponding to a front windshield glass heating function are detected to be simultaneously started, and when the current engine water temperature is higher than a second preset temperature and not higher than a first preset temperature, the air blower and the heating electric wire are kept in a simultaneously started state according to the electric quantity balance principle of the generator.
Optionally, the method further includes:
when the current engine water temperature is not higher than the second preset temperature, controlling the time length of the engine for keeping the current idling speed to be a first preset time, and when the first preset time is reached, reducing the engine speed along with the increase of the water temperature of the vehicle.
Optionally, when the vehicle is in a heat engine state, according to a principle of balancing electric quantity of the generator, the heating power of the heating wire corresponding to the heating function of the front windshield glass is reduced, including:
when the vehicle is in a P-gear or N-gear idling working condition, an air blower corresponding to an air conditioner defrosting function of the vehicle and a heating electric wire corresponding to a front windshield glass heating function are simultaneously started, and when the current engine water temperature is higher than a first preset temperature, the heating electric wire is closed according to the electric quantity balance principle of the generator, the starting state of the air blower is kept, and vehicle defrosting is carried out.
Optionally, when the current engine water temperature is higher than a first preset temperature, the heating wire is turned off according to the electric quantity balance principle of the generator, and before the state of the blower is kept on, the method further includes:
when the current water temperature of the engine is higher than a second preset temperature and not higher than a first preset temperature and the water temperature of the engine is not higher than the first preset temperature within a second preset time when the heating electric wire is heated, closing the heating electric wire when the second preset time is up;
and when the current water temperature of the engine is higher than a second preset temperature and reaches the first preset temperature within second preset time, closing the heating electric wire.
Optionally, when the vehicle is in a heat engine state, according to a principle of balancing electric quantity of the generator, the heating power of the heating wire corresponding to the heating function of the front windshield glass is reduced, including:
when the vehicle is in a running gear working condition except P gear or N gear, and any one of an air blower corresponding to an air conditioner defrosting function and a heating wire corresponding to a front windshield glass heating function of the vehicle is detected to be independently started, when the rotating speed of an engine is lower than a first rotating speed, the starting state of the air blower or the heating wire is kept according to the electric quantity balance principle of a generator, and the vehicle is defrosted;
when the vehicle is in a running gear working condition except P gear or N gear, and an air blower corresponding to an air conditioner defrosting function of the vehicle and a heating electric wire corresponding to a front windshield glass heating function are detected to be simultaneously started, when the rotating speed of the engine is lower than a first rotating speed, the heating electric wire is closed according to a generator electric quantity balance principle, the starting state of the air blower is maintained, and the vehicle is defrosted;
when the vehicle is in a running gear working condition except for P gear or N gear, and the opening of an air blower corresponding to an air conditioner defrosting function of the vehicle and/or a heating electric wire corresponding to a front windshield glass heating function is detected, and when the rotating speed of the engine is not lower than a first rotating speed, the opening state of the air blower and/or the heating electric wire is kept, so that the vehicle is defrosted.
Optionally, when the vehicle is in a heat engine state, according to a principle of balancing electric quantity of the generator, the heating power of the heating wire corresponding to the heating function of the front windshield glass is reduced, including:
when the vehicle is in a working condition except for a P gear, an N gear and a running gear and an air blower corresponding to an air conditioner defrosting function of the vehicle is detected to be started, keeping the starting state of the air blower according to the electric quantity balance principle of the generator, and defrosting the vehicle;
when the vehicle is in a working condition except for a P gear, an N gear and a running gear, and the heating wire corresponding to the heating function of the front windshield glass is detected to be turned on, or when the air blower corresponding to the air conditioner defrosting function of the vehicle and the heating wire corresponding to the heating function of the front windshield glass are turned on simultaneously, the heating wire is turned off, and the turning-on state of the air blower is turned on or kept according to the electric quantity balance principle of the generator, so that the vehicle is defrosted.
A second aspect of an embodiment of the present invention provides a control apparatus for defrosting a vehicle, including:
the first processing module is used for starting a switch of a heating electric wire corresponding to the heating function of the front windshield glass when the vehicle is in a cold state so as to quickly defrost the vehicle;
and the second processing module is used for reducing the heating power of the heating electric wire corresponding to the front windshield glass heating function according to the electric quantity balance principle of the generator when the vehicle is in a heat engine state.
A third aspect of an embodiment of the present invention provides a terminal device, including: the control method for defrosting the vehicle comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the computer program to realize the steps of the control method for defrosting the vehicle according to any one of the embodiments.
Compared with the prior art, the embodiment of the invention has the following beneficial effects: compared with the prior art, the invention carries out quick defrosting of the vehicle by turning on the switch of the heating electric wire corresponding to the heating function of the front windshield glass when the vehicle is in a cold state; when the vehicle is in a heat engine state, the heating power of the heating wire corresponding to the heating function of the front windshield glass is reduced according to the electric quantity balance principle of the generator, and the normal operation and the quick defrosting of the vehicle can be ensured through the control, so that the vehicle of the small-power-generation generator of the small-displacement engine can apply the front windshield heating glass with larger power, and the small-power-generation generator of the small-displacement engine can quickly defrost in a cold area.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic diagram of a characteristic curve of a corresponding generator of a small displacement engine provided by an embodiment of the present invention;
fig. 2 is a schematic diagram of the electric quantity balance of the whole vehicle according to the embodiment of the invention;
FIG. 3 is a schematic flow chart of a control method for defrosting a vehicle according to an embodiment of the present invention;
FIG. 4(1) is a diagram illustrating the defrosting function of the air conditioner being turned on only by the P/N stage according to the embodiment of the present invention;
FIG. 4(2) is an exemplary diagram of heating function of only the front windshield glass when the water temperature of the P \ N gear engine is less than 70 ℃ according to the embodiment of the invention;
FIG. 4(3) is an exemplary diagram of the defrosting function of the air conditioner being turned on after the water temperature of the P \ N-gear engine is greater than 5 ℃ and the engine is operated for 8 minutes according to the embodiment of the invention;
FIG. 4(4) is an exemplary diagram of the defrosting function of the air conditioner being turned on when the water temperature of the P \ N-gear engine is higher than 5 ℃ and the air conditioner is operated for less than 8 minutes according to the embodiment of the invention;
FIG. 4(5) is an exemplary diagram of the defrosting function of the air conditioner being turned on when the P \ N-gear engine operates at a water temperature of less than or equal to 5 ℃ for 8 minutes according to the embodiment of the invention;
FIG. 4(6) is an exemplary diagram of an air conditioner defrosting start function of the P \ N-gear engine provided by the embodiment of the invention, wherein the water temperature of the engine is less than or equal to 5 ℃ and the air conditioner defrosting start function is less than 8 minutes;
FIG. 5 is a schematic diagram of a control for defrosting a vehicle according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
According to the control method for defrosting of the vehicle, after the engine is started in cold weather, the idling speed of the engine is high, the engine speed is gradually reduced along with the increase of the water temperature of the engine, and the power generation amount of the generator is reduced along with the reduction of the engine speed. The idling speed of the engine heat engine is the lowest speed of the engine when the whole machine works, and the idling speed of the engine heat engine is 750 rpm. Under the idle working condition of the heat engine of the whole machine, the generated energy of the generator (at normal temperature) is the lowest, and the small displacement engine shown in fig. 1 corresponds to a characteristic curve of the generator, wherein the abscissa in fig. 1 is the rotating speed of the generator, and the ordinate is the generated energy of the generator.
Since the speed ratio of the engine to the generator is 2.64, the engine speed is 750rpm, corresponding to the generator speed 1980rpm, and corresponding to the power generation amount 90A. When the whole vehicle has no front windshield glass heating function, the consumed electric quantity is 74A, and the residual electric quantity is 16A. The heating power of the front windshield glass in the current stage is calculated based on the glass size, the heating power of the front windshield glass which can be matched based on 16A electric quantity is 192w, and the heating power which is generally required according to the calculation of the glass size in the current stage is about 400w, so that the problems that the heating power is too low, heating defrosting cannot be met and the like exist when the heating wire is arranged on the front windshield glass. According to the heating power of the front windshield glass at the present stage, the electric quantity is calculated to be 33A, so that the required total electric quantity is 107A, and according to the graph 1, the corresponding rotating speed of the generator is determined to be 2500rpm, and the corresponding rotating speed of the engine is 950 rpm. If only the heating function of the front windshield glass is started, the defrosting function of the air conditioner is not started, the electric quantity consumed by the defrosting function of the air conditioner is 20A, the electric quantity required by the whole vehicle is 87A, and the electric quantity balance of the whole vehicle can be met when the idling speed of a heat engine of the engine is 750 rpm.
The basis of the electric quantity balance of the whole vehicle is the balance relationship between the power supply and the power consumption of the power supply system of the whole vehicle, namely the dynamic balance between the generation and the consumption of the electric energy among the generator, the storage battery and other various electric devices, as shown in fig. 2. The matching among the generator, the storage battery and the electric equipment ensures that the generator can provide enough electric energy for each electric equipment under most of operation conditions, and simultaneously, the storage battery can be ensured to be charged.
When the idling speed of the heat engine of the whole vehicle is 750rpm, other electric parts are started, the electric heating of the front windshield glass is added after the defrosting function of the air conditioner is started, and the electric quantity balance of the whole vehicle cannot be met, and when the engine is in a cold state, the idling speed of the engine is 950rpm, and the electric quantity can be met. When the water temperature of the engine is-35 ℃, the idle speed of the engine cold machine can reach 1300rpm, so that the generated energy can meet the electric quantity balance after the front windshield glass is heated when the engine cold machine rotates at a high idle speed, the idle speed of the engine is strongly related to the water temperature of the engine, and the corresponding relation between the water temperature of the engine and the idle speed of the engine is shown in table 1.
TABLE 1 corresponding relationship table of engine water temperature and engine idle speed
Figure BDA0002640426130000061
A control method for defrosting a vehicle will be described in detail below, which is applied to a vehicle having a small-displacement engine and a small-power generator, and a high-power front windshield heating glass is applied to the vehicle, as shown in fig. 3, and is described in detail below.
And 301, when the vehicle is in a cold state, turning on a switch of a heating electric wire corresponding to the heating function of the front windshield glass to quickly defrost the vehicle.
Optionally, the vehicle being in the cold state may include: the vehicle is in P-gear or N-gear idling working condition, the current engine water temperature is lower than a first preset temperature, and the first preset temperature can be 70 ℃.
The vehicle being in a warm engine state may comprise: the method comprises the following steps that (1) when a vehicle is in a P-gear or N-gear idling working condition, the current engine water temperature is not lower than a first preset temperature; the vehicle is in a running gear working condition except for P gear or N gear; when the vehicle is in the working condition except P gear, N gear and running gear.
The following describes in detail the control method for defrosting different vehicles when the vehicle is in different gears.
Optionally, when the vehicle is in a P-gear or N-gear idle working condition, if it is detected that the air blower corresponding to the air conditioner defrosting function of the vehicle is not turned on and the heating wire corresponding to the front windshield glass heating function is turned on, and when the current engine water temperature is not higher than a first preset temperature, the turning-on state of the heating wire and the turning-off state of the air blower are maintained.
In the present embodiment, the detection of the current state of the vehicle and the defrosting demand of the vehicle are operations performed by an Electronic Control Unit (ECU). It should be noted that, when the vehicle is in a P-gear or N-gear idling condition, if it is detected that the heating wire corresponding to the front windshield glass heating function is turned on, the current engine water temperature is not higher than a first preset temperature, which indicates that the vehicle is in a cold state at the time, the engine speed is higher, the power generation amount is larger, when only the heating wire is turned on, the power balance of the generator can be satisfied, and at the time, the vehicle can quickly defrost through the front windshield glass heating function. As shown in fig. 4(1), if only the front windshield glass heating function is turned on, and the air conditioner defrosting function is not turned on, other functions can be turned on synchronously without any influence in the process, the electric quantity of the generator can be kept balanced, the vehicle can run normally, and defrosting can be performed quickly.
Optionally, when the vehicle is in a cold state, if it is detected that the blower corresponding to the air conditioner defrosting function of the vehicle is turned on and the heating wire corresponding to the front windshield heating function is not turned on, the on state of the blower and the off state of the heating wire are maintained.
Because the electric quantity required by the defrosting function of the air conditioner is less than the electric quantity required by the opening of the heating wire corresponding to the heating function of the front windshield glass, as shown in fig. 4(2), when the vehicle is in a P-gear or N-gear idling working condition, if the vehicle only starts the defrosting function of the air conditioner, the heating function of the front windshield glass is not started, other functions can be started synchronously without influence in the process, the electric quantity of the generator can keep the electric quantity balance, and the vehicle can run normally. Other functions may be provided by other powered devices of the vehicle.
Optionally, when the vehicle is in a P-gear or N-gear idling condition, and the air blower corresponding to the air conditioner defrosting function of the vehicle and the heating wire corresponding to the front windshield glass heating function are detected to be simultaneously turned on, and when the current engine water temperature is higher than a second preset temperature and not higher than a first preset temperature, the state that the air blower and the heating wire are simultaneously turned on is maintained according to the electric quantity balance principle of the generator.
Alternatively, the second preset temperature may be 5 ℃. Namely, when the water temperature of the engine is above 5 ℃, the air blower corresponding to the air-conditioning defrosting function of the vehicle and the heating wire corresponding to the front windshield glass heating function are simultaneously started, the fact that the vehicle needs to be quickly defrosted is judged, the rotating speed of the engine is reduced along with the rising of the water temperature of the engine, the vehicle can normally run at the moment, and the air-conditioning defrosting function can also continue to normally run. When the engine water temperature does not rise to 70 ℃, as shown in fig. 4(3), that is, when the engine water temperature is 5 ℃ to 70 ℃, the blower and the heating wire are kept simultaneously turned on. When the water temperature of the engine rises to above 70 ℃, the vehicle is in a heat engine state, when the idle speed of the vehicle is less than 950rpm, the power generation amount of the generator corresponding to the engine is not enough to support the opening of the heating wire corresponding to the heating function of the front windshield glass, the heating function of the front windshield glass is closed, and the defrosting function of the air conditioner can continue to operate normally to meet the defrosting requirement of a user.
Optionally, when the current engine water temperature is not higher than the second preset temperature, controlling a duration of the engine maintaining the current idle speed to be a first preset time, and after the first preset time is reached, the engine speed is reduced along with the increase of the water temperature of the vehicle.
Optionally, the first preset time may be set according to an actual requirement, for example, the first preset time may be 4 minutes. Namely, when the blower and the heating wire are simultaneously started and the water temperature of the engine is less than or equal to 5 ℃, the engine stably operates for 4 minutes at the current idle speed. For example, the cold start water temperature of the vehicle is-35 ℃, the engine speed is stabilized at 1300rpm for operation, the cold start water temperature is-20 ℃, the engine speed is stabilized at 1150rpm for operation, the cold start water temperature is 0 ℃, and the engine speed is stabilized at 1050rpm for operation.
And 302, when the vehicle is in a heat engine state, reducing the heating power of the heating wire corresponding to the front windshield glass heating function according to the electric quantity balance principle of the generator.
Optionally, when the vehicle is in a P-gear or N-gear idling condition and the water temperature of the engine rises above a first preset temperature, namely above 70 ℃, the vehicle is in a heat engine state at this time, the power generation of the generator is low, and in order to meet the principle of electric quantity balance of the generator, a mode of reducing the heating power of the heating wire corresponding to the heating function of the front windshield glass can be adopted, so that the vehicle can normally run and defrost.
Namely, when the vehicle is in a P-gear or N-gear idling working condition, an air blower corresponding to an air conditioner defrosting function of the vehicle and a heating electric wire corresponding to a front windshield glass heating function are simultaneously started, and when the current engine water temperature is higher than a first preset temperature, the heating electric wire is closed according to the electric quantity balance principle of the generator, the starting state of the air blower is kept, and the vehicle defrosting is carried out.
Optionally, it should be noted that when the current engine water temperature is higher than a second preset temperature and is not higher than a first preset temperature, and the engine water temperature is not higher than the first preset temperature within a second preset time, the heating wire is turned off when the second preset time is reached; and when the current water temperature of the engine is higher than a second preset temperature and reaches the first preset temperature within second preset time, closing the heating electric wire.
Optionally, the second preset time may be set according to a time requirement, for example, the second preset time may be 7 minutes, 8 minutes, or 9 minutes, and the like. In the present embodiment, the second preset time is described as 8 minutes. As shown in fig. 4(3), when the water temperature of the engine is above 5 ℃ and below 70 ℃, the water temperature of the engine is within 8 minutes of heating the heating wire, and still does not rise to 70 ℃, when the heating wire is heated for 8 minutes, the heating wire is closed, and the defrosting function of the air conditioner is kept to continue to operate normally. It should be noted that, when the front windshield heating function is turned on again at this time, it is necessary to determine whether the heating wire needs to be turned off and corresponding operation needs to be performed according to the current engine temperature.
Optionally, when the current engine water temperature is higher than a second preset temperature and reaches the first preset temperature within a second preset time, the heating electric wire is turned off. Namely, within 8 minutes of heating by the heating wire, the water temperature of the engine rises to 70 ℃ until the water temperature of the engine reaches 70 ℃, as shown in (4) of figure 4, the heating function of the front windshield glass is closed, and the defrosting function of the air conditioner continues to operate normally. If the user starts the heating function of the front windshield glass again, whether the heating electric wire needs to be closed or not is judged according to the current engine temperature, and corresponding operation is executed.
Optionally, after the first preset time is reached, the engine speed is reduced along with the increase of the water temperature of the vehicle, that is, after 4 minutes, the engine speed is reduced along with the increase of the water temperature of the vehicle, and if the engine water temperature is increased to 70 ℃, the ECU automatically turns off the heating function of the front windshield glass. If the ECU monitors that the water temperature of the engine is always higher than 70 ℃, the heating function of the front windshield glass can not be started all the time. Because the idling speed of the engine is reduced along with the rise of the water temperature of the engine, when the water temperature rises to 69 ℃, the idling speed of the engine is 950rpm, when the water temperature rises to 70 ℃, the speed of the engine is still stable at 950rpm, and after the water temperature reaches 71 ℃, the idling speed of the engine is reduced.
As shown in fig. 4(5), if the water temperature of the engine does not rise to 70 ℃, the engine speed will drop along with the rise of the water temperature of the engine, if the water temperature of the engine is within 8 minutes (including the 4 minutes), the water temperature of the engine still does not rise to 70 ℃, the front windshield heating function is automatically turned off when the front windshield heating function is operated for 8 minutes (including the 4 minutes), and the air conditioner defrosting function continues to operate normally. If the front windshield heating function is started again, whether the heating electric wire needs to be closed or not is judged according to the current engine temperature, and corresponding operation is executed.
As shown in fig. 4(6), if the water temperature of the engine does not rise to 70 ℃, the engine speed will drop along with the rise of the water temperature of the engine, and if the water temperature of the engine can rise to 70 ℃ within 8 minutes, until the water temperature of the engine reaches 70 ℃, the heating function of the front windshield glass is turned off, and the defrosting function of the air conditioner can continue to operate normally. If the front windshield heating function is started again, whether the heating electric wire needs to be closed or not is judged according to the current engine temperature, and corresponding operation is executed.
Optionally, when the vehicle is in a running gear working condition except for the P gear or the N gear, the vehicle is in a heat engine state. At the moment, when the condition that the air blower corresponding to the air conditioner defrosting function of the vehicle and/or the heating electric wire corresponding to the front windshield glass heating function are/is started is detected, the on-off state of the air blower or the heating electric wire is controlled according to the rotating speed of the engine and the electric quantity balance principle of the generator, so that the normal operation of the vehicle is ensured, and the rapid defrosting is realized.
Optionally, when the vehicle does not need to be defrosted quickly under the working condition of the running gear except for the P gear or the N gear, the on-off state of the air blower or the heating wire needs to be controlled according to the rotating speed of the engine at the moment, so that the defrosting requirement of a user is met, and the normal running of the vehicle is ensured.
Optionally, when the vehicle is in a running gear condition other than the P gear or the N gear, the control of defrosting the vehicle may be performed in the following cases:
(1) when the vehicle is in a running gear working condition except for a P gear or an N gear, any one of an air blower corresponding to an air conditioner defrosting function and a heating wire corresponding to a front windshield glass heating function of the vehicle is detected to be independently started, and when the rotating speed of the engine is lower than a first rotating speed, the starting state of the air blower or the heating wire is kept according to a generator electric quantity balance principle, so that the vehicle is defrosted.
Alternatively, the first rotation speed may be determined according to the engine water temperature, and for example, the first rotation speed may be 950 rpm. That is, when the rotation speed of the engine is less than 950rpm, the heating function of the front windshield glass and the defrosting function of the air conditioner cannot be started simultaneously, and only the heating function of the front windshield glass or the defrosting function of the air conditioner can be selected to be started independently. It should be noted that other functions in the process of independently starting the defrosting function of the air conditioner can be synchronously started without any influence, and other functions except the blower in the process of independently starting the heating function of the front windshield glass can be synchronously started without any influence.
(2) When the vehicle is in a running gear working condition except for a P gear or an N gear, the air blower corresponding to an air conditioner defrosting function of the vehicle and the heating wire corresponding to a front windshield glass heating function are detected to be simultaneously turned on, and when the rotating speed of the engine is lower than a first rotating speed, the heating wire is turned off according to a generator electric quantity balance principle, the turning-on state of the air blower is maintained, and the vehicle is defrosted.
(3) When the vehicle is in a running gear working condition except for P gear or N gear, and the opening of an air blower corresponding to an air conditioner defrosting function of the vehicle and/or a heating electric wire corresponding to a front windshield glass heating function is detected, and when the rotating speed of the engine is not lower than a first rotating speed, the opening state of the air blower and/or the heating electric wire is kept, so that the vehicle is defrosted.
When the rotating speed of the engine is greater than or equal to 950rpm, the functions of heating the front windshield glass and defrosting the air conditioner can be started simultaneously, and the functions of heating the front windshield glass and defrosting the air conditioner can also be started independently. It should be noted that, when the front windshield heating function is independently turned on, the blower function is not limited.
Optionally, when the vehicle is in a working condition except for the P gear, the N gear and the driving gear, and when the air blower corresponding to the air conditioner defrosting function of the vehicle and/or the heating wire corresponding to the front windshield glass heating function of the vehicle are detected to be turned on, the on-off state of the air blower or the heating wire is controlled according to the electric quantity balance principle of the generator, so that the normal operation of the vehicle is ensured, and the rapid defrosting is realized.
The heating function of the front windshield glass can not be started when the vehicle is in a working condition except a P gear, an N gear and a running gear, namely the vehicle is in an ON gear and a LOCK gear, so that the heating function of the front windshield glass needs to be closed when the heating function of the front windshield glass is started. Specific examples are as follows:
(1) when the vehicle is in a working condition except for a P gear, an N gear and a running gear and an air blower corresponding to an air conditioner defrosting function of the vehicle is detected to be started, keeping the starting state of the air blower according to the electric quantity balance principle of the generator, and defrosting the vehicle;
when the vehicle is in a working condition except for a P gear, an N gear and a running gear, and the heating wire corresponding to the heating function of the front windshield glass is detected to be turned on, or when the air blower corresponding to the air conditioner defrosting function of the vehicle and the heating wire corresponding to the heating function of the front windshield glass are turned on simultaneously, the heating wire is turned off, and the turning-on state of the air blower is turned on or kept according to the electric quantity balance principle of the generator.
According to the control method for defrosting the vehicle, when the vehicle is in a cold state, the switch of the heating electric wire corresponding to the heating function of the front windshield glass is turned on to quickly defrost the vehicle, and when the vehicle is in a hot state, the heating power of the heating electric wire corresponding to the heating function of the front windshield glass is reduced according to the electric quantity balance principle of the generator to defrost the vehicle, so that the front windshield heating glass with higher power can be applied to the vehicle of the small-power-generation-amount generator with the small-displacement engine, and the small-power-generation-amount generator with the small-displacement engine can quickly defrost in a cold area.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Corresponding to the control method for defrosting a vehicle described in the above embodiment, fig. 5 shows an exemplary diagram of a control device for defrosting a vehicle according to an embodiment of the present invention, which is applied to a vehicle with a small-displacement engine and a small-power-generation generator, and on which a front windshield heating glass is added. As shown in fig. 5, the apparatus may include: a first processing module 501 and a second processing module 502.
The first processing module 501 is configured to, when the vehicle is in a cold state, turn on a switch of a heating wire corresponding to a front windshield glass heating function, so as to perform quick defrosting of the vehicle;
the second processing module 502 is configured to, when the vehicle is in a heat engine state, reduce the heating power of the heating wire corresponding to the front windshield glass heating function according to a generator electric quantity balance principle.
Optionally, the first processing module 501 is further configured to, when the vehicle is in a cold state, if it is detected that the blower corresponding to the air conditioner defrosting function of the vehicle is turned on and the heating wire corresponding to the front windshield heating function of the vehicle is not turned on, maintain the on state of the blower and the off state of the heating wire.
Optionally, when the vehicle is in a cold state and the switch of the heating wire corresponding to the front windshield glass heating function is turned on, the first processing module 501 may be configured to:
when a vehicle is in a P-gear or N-gear idling working condition, if the situation that an air blower corresponding to an air conditioner defrosting function of the vehicle is not started and a heating electric wire corresponding to a front windshield glass heating function is started is detected, and the current water temperature of an engine is not higher than a first preset temperature, keeping the starting state of the heating electric wire and the closing state of the air blower;
when the vehicle is in a P-gear or N-gear idling working condition, an air blower corresponding to an air conditioner defrosting function of the vehicle and a heating electric wire corresponding to a front windshield glass heating function are detected to be simultaneously started, and when the current engine water temperature is higher than a second preset temperature and not higher than a first preset temperature, the air blower and the heating electric wire are kept in a simultaneously started state according to the electric quantity balance principle of the generator.
Optionally, the first processing module 501 is further configured to:
when the current engine water temperature is not higher than the second preset temperature, controlling the time length of the engine for keeping the current idling speed to be a first preset time, and when the first preset time is reached, reducing the engine speed along with the increase of the water temperature of the vehicle.
Optionally, when the vehicle is in a heat engine state, according to a principle of electric quantity balance of the generator, the second processing module 502 may be configured to, when the heating power of the heating wire corresponding to the front windshield glass heating function is reduced:
when the vehicle is in a P-gear or N-gear idling working condition, an air blower corresponding to an air conditioner defrosting function of the vehicle and a heating electric wire corresponding to a front windshield glass heating function are detected to be simultaneously started, and when the current engine water temperature is higher than a first preset temperature, the heating electric wire is closed according to the electric quantity balance principle of the generator, the starting state of the air blower is kept, and the vehicle defrosting is carried out.
Before the second processing module 502 turns off the heating wire according to the electric quantity balance principle of the generator and maintains the state of the blower being turned on when the current engine water temperature is higher than the first preset temperature, the second processing module is further configured to:
when the current water temperature of the engine is higher than a second preset temperature and not higher than a first preset temperature and the water temperature of the engine is not higher than the first preset temperature within a second preset time when the heating electric wire is heated, closing the heating electric wire when the second preset time is up;
and when the current water temperature of the engine is higher than a second preset temperature and reaches the first preset temperature within second preset time, closing the heating electric wire.
Optionally, when the vehicle is in a heat engine state, according to a principle of electric quantity balance of the generator, the second processing module 502 may be configured to, when the heating power of the heating wire corresponding to the front windshield glass heating function is reduced:
when the vehicle is in a running gear working condition except P gear or N gear, any one of an air blower corresponding to an air conditioner defrosting function and a heating wire corresponding to a front windshield glass heating function of the vehicle is detected to be independently started, and when the rotating speed of the engine is lower than a first rotating speed, the starting state of the air blower or the heating wire is kept according to the electric quantity balance principle of a generator, so that the vehicle is defrosted;
when the vehicle is in a running gear working condition except P gear or N gear, and an air blower corresponding to an air conditioner defrosting function of the vehicle and a heating electric wire corresponding to a front windshield glass heating function are detected to be simultaneously started, when the rotating speed of the engine is lower than a first rotating speed, the heating electric wire is closed according to a generator electric quantity balance principle, the starting state of the air blower is maintained, and the vehicle is defrosted;
when the vehicle is in a running gear working condition except for P gear or N gear, and the opening of an air blower corresponding to an air conditioner defrosting function of the vehicle and/or a heating electric wire corresponding to a front windshield glass heating function is detected, and when the rotating speed of the engine is not lower than a first rotating speed, the opening state of the air blower and/or the heating electric wire is kept, so that the vehicle is defrosted.
Optionally, when the vehicle is in a heat engine state, according to a principle of electric quantity balance of the generator, the second processing module 502 may be configured to, when the heating power of the heating wire corresponding to the front windshield glass heating function is reduced:
when the vehicle is in a working condition except for a P gear, an N gear and a running gear and an air blower corresponding to an air conditioner defrosting function of the vehicle is detected to be started, keeping the starting state of the air blower according to the electric quantity balance principle of the generator, and defrosting the vehicle;
when the vehicle is in a working condition except for a P gear, an N gear and a running gear, and the heating wire corresponding to the heating function of the front windshield glass is detected to be turned on, or when the air blower corresponding to the air conditioner defrosting function of the vehicle and the heating wire corresponding to the heating function of the front windshield glass are turned on simultaneously, the heating wire is turned off, and the turning-on state of the air blower is turned on or kept according to the electric quantity balance principle of the generator, so that the vehicle is defrosted.
Above-mentioned controlling means of vehicle defrosting, through when the vehicle is in cold machine state, first processing module opens the switch of the heating electric wire that preceding windshield heating function corresponds, carries out the quick defrosting of vehicle, when the vehicle is in the heat engine state, according to the balanced principle of generator electric quantity, second processing module reduces the heating power of the heating electric wire that preceding windshield heating function corresponds carries out the vehicle defrosting to can be through the preceding windshield heating glass of using great power on the vehicle of the little generated energy generator of little discharge capacity engine, make the little generated energy generator of little discharge capacity engine can defrost fast in cold areas.
Fig. 6 is a schematic diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 6, the terminal device 600 of this embodiment includes: a processor 601, a memory 602 and a computer program 603 stored in said memory 602 and operable on said processor 601, for example a control program for defrosting a vehicle. The processor 601 executes the computer program 603 to implement the steps in the above-mentioned control method for defrosting a vehicle, such as the steps 301 to 302 shown in fig. 3, and the processor 601 executes the computer program 603 to implement the functions of the modules in the above-mentioned device embodiments, such as the functions of the modules 501 to 502 shown in fig. 5.
Illustratively, the computer program 603 may be partitioned into one or more program modules, which are stored in the memory 602 and executed by the processor 601 to implement the present invention. The one or more program modules may be a series of computer program instruction segments capable of performing specific functions for describing the execution of the computer program 603 in the control means or terminal device 600 for defrosting the vehicle. For example, the computer program 603 may be divided into a first processing module 501 and a second processing module 502, and specific functions of the modules are shown in fig. 5, which is not described herein again.
The terminal device 600 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device may include, but is not limited to, a processor 601, a memory 602. Those skilled in the art will appreciate that fig. 6 is merely an example of a terminal device 600 and does not constitute a limitation of terminal device 600 and may include more or fewer components than shown, or some components may be combined, or different components, e.g., the terminal device may also include input-output devices, network access devices, buses, etc.
The Processor 601 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 602 may be an internal storage unit of the terminal device 600, such as a hard disk or a memory of the terminal device 600. The memory 602 may also be an external storage device of the terminal device 600, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the terminal device 600. Further, the memory 602 may also include both an internal storage unit and an external storage device of the terminal device 600. The memory 602 is used for storing the computer programs and other programs and data required by the terminal device 600. The memory 602 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. . Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims (10)

1. A control method for defrosting a vehicle, comprising:
when the vehicle is in a cold state, a switch of a heating electric wire corresponding to the heating function of the front windshield glass is turned on to rapidly defrost the vehicle;
and when the vehicle is in a heat engine state, the heating power of the heating electric wire corresponding to the heating function of the front windshield glass is reduced according to the electric quantity balance principle of the generator.
2. The control method for defrosting a vehicle according to claim 1, further comprising:
when the vehicle is in a cold state, if the condition that an air blower corresponding to the air conditioner defrosting function of the vehicle is started and a heating electric wire corresponding to the front windshield heating function is not started is detected, the starting state of the air blower and the closing state of the heating electric wire are kept.
3. The method for controlling defrosting of a vehicle according to claim 2, wherein the turning on of the switch of the heating wire corresponding to the heating function of the front windshield glass when the vehicle is in a cold state comprises:
when a vehicle is in a P-gear or N-gear idling working condition, if the situation that an air blower corresponding to an air conditioner defrosting function of the vehicle is not started and a heating electric wire corresponding to a front windshield glass heating function is started is detected, and the current water temperature of an engine is not higher than a first preset temperature, keeping the starting state of the heating electric wire and the closing state of the air blower;
when the vehicle is in a P-gear or N-gear idling working condition, an air blower corresponding to an air conditioner defrosting function of the vehicle and a heating electric wire corresponding to a front windshield glass heating function are detected to be simultaneously started, and when the current engine water temperature is higher than a second preset temperature and not higher than a first preset temperature, the air blower and the heating electric wire are kept in a simultaneously started state according to the electric quantity balance principle of the generator.
4. A control method for defrosting a vehicle according to claim 3, further comprising:
when the current engine water temperature is not higher than the second preset temperature, controlling the time length of the engine for keeping the current idling speed to be a first preset time, and when the first preset time is reached, reducing the engine speed along with the increase of the water temperature of the vehicle.
5. The method for controlling defrosting of a vehicle according to any one of claims 1 to 4, wherein the step of reducing the heating power of the heating wire corresponding to the front windshield glass heating function according to the generator power balance principle when the vehicle is in a warm-up state comprises:
when the vehicle is in a P-gear or N-gear idling working condition, an air blower corresponding to an air conditioner defrosting function of the vehicle and a heating electric wire corresponding to a front windshield glass heating function are simultaneously started, and when the current engine water temperature is higher than a first preset temperature, the heating electric wire is closed according to the electric quantity balance principle of the generator, the starting state of the air blower is kept, and vehicle defrosting is carried out.
6. The method for controlling defrosting of a vehicle according to claim 5, wherein when the current engine water temperature is higher than a first preset temperature, the heating wire is turned off according to the power balance principle of the generator, and before the state that the blower is turned on is maintained, the method further comprises:
when the current water temperature of the engine is higher than a second preset temperature and not higher than a first preset temperature and the water temperature of the engine is not higher than the first preset temperature within a second preset time when the heating electric wire is heated, closing the heating electric wire when the second preset time is up;
and when the current water temperature of the engine is higher than a second preset temperature and reaches the first preset temperature within second preset time, closing the heating electric wire.
7. The method for controlling defrosting of a vehicle according to any one of claims 1 to 4, wherein the step of reducing the heating power of the heating wire corresponding to the front windshield glass heating function according to the generator power balance principle when the vehicle is in a warm-up state comprises:
when the vehicle is in a running gear working condition except P gear or N gear, and any one of an air blower corresponding to an air conditioner defrosting function and a heating wire corresponding to a front windshield glass heating function of the vehicle is detected to be independently started, when the rotating speed of an engine is lower than a first rotating speed, the starting state of the air blower or the heating wire is kept according to the electric quantity balance principle of a generator, and the vehicle is defrosted;
when the vehicle is in a running gear working condition except P gear or N gear, and an air blower corresponding to an air conditioner defrosting function of the vehicle and a heating electric wire corresponding to a front windshield glass heating function are detected to be simultaneously started, when the rotating speed of the engine is lower than a first rotating speed, the heating electric wire is closed according to a generator electric quantity balance principle, the starting state of the air blower is maintained, and the vehicle is defrosted;
when the vehicle is in a running gear working condition except for P gear or N gear, and the opening of an air blower corresponding to an air conditioner defrosting function of the vehicle and/or a heating electric wire corresponding to a front windshield glass heating function is detected, and when the rotating speed of the engine is not lower than a first rotating speed, the opening state of the air blower and/or the heating electric wire is kept, so that the vehicle is defrosted.
8. The method for controlling defrosting of a vehicle according to any one of claims 1 to 4, wherein the step of reducing the heating power of the heating wire corresponding to the front windshield glass heating function according to the generator power balance principle when the vehicle is in a warm-up state comprises:
when the vehicle is in a working condition except for a P gear, an N gear and a running gear and an air blower corresponding to an air conditioner defrosting function of the vehicle is detected to be started, keeping the starting state of the air blower according to the electric quantity balance principle of the generator, and defrosting the vehicle;
when the vehicle is in a working condition except for a P gear, an N gear and a running gear, and the heating wire corresponding to the heating function of the front windshield glass is detected to be turned on, or when the air blower corresponding to the air conditioner defrosting function of the vehicle and the heating wire corresponding to the heating function of the front windshield glass are turned on simultaneously, the heating wire is turned off, and the turning-on state of the air blower is turned on or kept according to the electric quantity balance principle of the generator, so that the vehicle is defrosted.
9. A control apparatus for defrosting a vehicle, comprising:
the first processing module is used for starting a switch of a heating electric wire corresponding to the heating function of the front windshield glass when the vehicle is in a cold state so as to quickly defrost the vehicle;
and the second processing module is used for reducing the heating power of the heating electric wire corresponding to the front windshield glass heating function according to the electric quantity balance principle of the generator when the vehicle is in a heat engine state.
10. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1 to 8 when executing the computer program.
CN202010838101.1A 2020-08-19 2020-08-19 Control method and device for defrosting of vehicle Pending CN114074534A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01273750A (en) * 1988-04-23 1989-11-01 Nippon Denso Co Ltd Vehicle defroster controller
CN105045151A (en) * 2015-07-23 2015-11-11 安徽江淮汽车股份有限公司 Vehicle electrical balance control method and device
CN106696901A (en) * 2015-11-12 2017-05-24 北汽福田汽车股份有限公司 Windshield defrosting control system and method as well as automobile
CN206856671U (en) * 2017-04-18 2018-01-09 中国第一汽车股份有限公司 A kind of commercial car front windshield electrically heated glass
CN107985016A (en) * 2017-12-28 2018-05-04 北京汽车研究总院有限公司 A kind of back vehicle windshield glass heating control apparatus and there is its vehicle
CN109204233A (en) * 2017-07-06 2019-01-15 郑州宇通客车股份有限公司 Automatic defrosting defogging method and system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01273750A (en) * 1988-04-23 1989-11-01 Nippon Denso Co Ltd Vehicle defroster controller
CN105045151A (en) * 2015-07-23 2015-11-11 安徽江淮汽车股份有限公司 Vehicle electrical balance control method and device
CN106696901A (en) * 2015-11-12 2017-05-24 北汽福田汽车股份有限公司 Windshield defrosting control system and method as well as automobile
CN206856671U (en) * 2017-04-18 2018-01-09 中国第一汽车股份有限公司 A kind of commercial car front windshield electrically heated glass
CN109204233A (en) * 2017-07-06 2019-01-15 郑州宇通客车股份有限公司 Automatic defrosting defogging method and system
CN107985016A (en) * 2017-12-28 2018-05-04 北京汽车研究总院有限公司 A kind of back vehicle windshield glass heating control apparatus and there is its vehicle

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