CN101434184A - Auxialary electric heating apparatus for automobile and auxialary electric heating method for automobile - Google Patents
Auxialary electric heating apparatus for automobile and auxialary electric heating method for automobile Download PDFInfo
- Publication number
- CN101434184A CN101434184A CNA2008101742446A CN200810174244A CN101434184A CN 101434184 A CN101434184 A CN 101434184A CN A2008101742446 A CNA2008101742446 A CN A2008101742446A CN 200810174244 A CN200810174244 A CN 200810174244A CN 101434184 A CN101434184 A CN 101434184A
- Authority
- CN
- China
- Prior art keywords
- power
- voltage
- heater unit
- pwm signal
- target power
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0252—Domestic applications
- H05B1/0258—For cooking
- H05B1/0261—For cooking of food
- H05B1/0266—Cooktops
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
- B60H1/08—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
- B60H1/2218—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters controlling the operation of electric heaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H2001/2246—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant obtaining information from a variable, e.g. by means of a sensor
- B60H2001/2253—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant obtaining information from a variable, e.g. by means of a sensor related to an operational state of the vehicle or a vehicle component
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
- B60H2001/2259—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant output of a control signal
- B60H2001/2265—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant output of a control signal related to the quantity of heat produced by the heater
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/02—Heaters using heating elements having a positive temperature coefficient
Abstract
The invention relates to an auxiliary electric heating device used for a vehicle and an auxiliary electric heating method for a vehicle, which comprises a switch part that comprises one or a plurality of switch units and is used for opening and closing a battery voltage by carrying out a switch operation according to a PWM signal; a heater part that comprises one or a plurality of heater units which is connected with the switch units; a current detecting part that detects the current flowing through the heater part; a control part that compares the voltage information of the battery voltage being received with a reference voltage, wherein, if the voltage information is lower than the reference voltage, heating power proportionate to the battery voltage is set as target power, whereas the voltage information is higher than the reference voltage, and preset maximum heating power is set as the target power so as to generate the PWM signal with a PWM duty cycle relative to the set target power and to impose to the switch unit. According to the detecting current of the current detecting part, consumed power actually being consumed is calculated, and the PWM duty cycle of the PWM signal is regulated according to the calculated consumed power and the target power.
Description
Technical field
The present invention relates to the auxiliary electric heater unit and the auxiliary electrical method of heating of automobile.
Background technology
Usually, the electric heater unit of automobile is used to heat the room air of automobile, perhaps is used for pre-hot cooling water or heating fuel in watercooled engine.
Electric heater unit can be used as PTC (Positive Thermister Coefficient: positive temperature coefficient) temperature booster (Heater) and as the auxiliary device of the heater unit of automotive air conditioning device, perhaps also can constitute separately independently heating installation by one or more electric heater units.
Fig. 1 is the block diagram that illustrates according to the auxiliary electric heater unit of the automobile of conventional art.As shown in Figure 1, in the auxiliary electric heater unit 10 of automobile, microprocessor 16 applies and sets in advance the corresponding control signal of heating power of the ptc heater 17 on power transistor 11 to the power transistor 11 as power semiconductor.
Like this, power transistor 11 applies and PWM (Pulse Width Modulation: pulse width modulation) the corresponding electric current of signal to ptc heater 17 according to the control signal of microprocessor 16.
At this moment, in ptc heater 17, by producing predetermined heating power with the corresponding electric current of pwm signal on the power transistor 11, and its temperature rises thus.
That is, microprocessor 16 can be controlled by the power transistor 11 as power semiconductor, so that produce the heating power that for example is equivalent to 1000 to 2000 watts (W) in ptc heater 17.
; there are the following problems in the electric heater unit of in the past automobile: sometimes along with such as the variation of such external environment condition such as the action of vehicle audio, Windshield Wiper, room light lamp and head lamp etc. and can't produce predetermined target power in ptc heater; perhaps can cause excessive consumption of power; the perhaps temperature of the auxiliary electric heater unit of automobile or the ptc heater rising owing to excessive power, the result causes the auxiliary electric heater unit of automobile or ptc heater to damage.
Summary of the invention
The objective of the invention is to, provide a kind of PWM dutycycle of pwm signal of regulating so that the consumed power of ptc heater reaches the automobile auxiliary electric heater unit and the automobile auxiliary electrical method of heating of the target power of supply cell pressure.
The automobile that the present invention relates to auxiliary electric heater unit and the automobile corresponding consumed power of electric current of calculating of auxiliary electrical method of heating and ptc heater, and regulate the PWM dutycycle of pwm signal so that consumed power reaches the target power of supplying cell pressure.
Effect
According to the present invention, when cell pressure is low because the battery consumption of automobile is excessive, the target power that reduces ptc heater reduces the load of the battery of automobile, when exporting enough cell pressures, can heat with target power, can obtain not make the effect of the battery overwork of automobile thus.
Therefore in addition, the present invention utilizes the electric current of ptc heater to calculate the consumed power that consumes in ptc heater, and the control consumed power makes it near target power, has the effect of the accurate consumed power that can control ptc heater.
The present invention includes: switch portion comprises one or more switch elements, and carries out switching manipulation according to pwm signal and come switching battery voltage; Temperature booster portion comprises one or more heater units, and described one or more heater units are connected with the output of described switch element respectively; Current detecting part is connected with described heater unit, detects the electric current of the described temperature booster portion that flows through; Control part, after receiving the information of voltage of cell pressure, compare with reference voltage, if described information of voltage is lower than described reference voltage, then will be set at target power with the proportional heating power of cell pressure, if described information of voltage is higher than described reference voltage, be target power then with predetermined maximum heating power setting, to generate described pwm signal with the corresponding PWM dutycycle of setting of described target power, and this pwm signal imposed on described switch element, calculate the consumed power of actual consumption according to the detection electric current of described current detecting part, then the PWM dutycycle of controlling described pwm signal according to the described consumed power that calculates and described target power.
In the present invention, described switch element comprises one or more MOSFET, the gate terminal (G) of the individual MOSFET of described MOSFET to the N (N is a natural number) is connected with described control part, drain terminal (D) is connected with battery supply portion, and source terminal (S) is connected with described heater unit respectively.
In addition, in the present invention, described switch element comprises one or more power transistors, the base terminal (B) of described first power transistor to the N (N is a natural number) power transistor is connected with described control part, collector terminal (C) is connected with battery supply portion, and emitter terminal (E) is connected with described heater unit respectively.
In addition, in the present invention, also comprise Department of Communication Force, this Department of Communication Force receives and transmits the described information of voltage of described cell pressure.
In addition, in the present invention, described Department of Communication Force is by a formation among RS-232, RS-422, USB (Universal Serial Bus, USB), IEEE1394 and CAN (Controller Area Network, the controller local area network) communication.
In addition, in the present invention, described control part comprises the communication unit that receives described information of voltage.
In addition, in the present invention, when the described consumed power that calculates was greater than or less than described target power, described control part reduced or increases the described PWM dutycycle of described pwm signal respectively.
In addition, in the present invention, described control part applies described pwm signal to one or more described switch elements individually.
In addition, in the present invention, described current detecting part forms one, and is connected with one or more heater units.
In addition, the present invention includes following steps: after receiving the information of voltage of cell pressure, itself and reference voltage are compared; If described information of voltage is lower than reference voltage, then will be set at target power with the proportional heating power of the cell pressure that is lower than described reference voltage, if described information of voltage is higher than described reference voltage, be target power then with predetermined maximum heating power setting; Generating pwm signal, and this pwm signal is imposed on switch portion with the corresponding PWM dutycycle of the described target power of setting; And the consumed power of calculating actual consumption, and the PWM dutycycle of regulating described pwm signal according to the described consumed power that calculates and described target power.
In addition, in the present invention, in the step of the PWM dutycycle of regulating described pwm signal, when the consumed power of described calculating is greater than or less than described target power, reduce or increase the PWM dutycycle of described pwm signal respectively.
In addition, in the present invention, in the step that applies to switch portion, apply the described pwm signal of described PWM dutycycle individually to one or more switch elements of described switch portion.
In addition, in the present invention, in the step of the described PWM dutycycle of regulating described pwm signal, the described consumed power of calculating actual consumption in one or more heater units of heating part according to the detection electric current and the cell pressure of described current detecting part.
Description of drawings
Fig. 1 is the block diagram that illustrates according to the auxiliary electric heater unit of the automobile of conventional art;
Fig. 2 is the block diagram that illustrates according to the auxiliary electric heater unit of automobile of the present invention;
Fig. 3 is the diagram of circuit that is used to illustrate according to the auxiliary electrical method of heating of automobile of the present invention;
Fig. 4 a is the figure that illustrates according to the target power of of the present invention and the corresponding ptc heater of cell pressure;
Fig. 4 b illustrates figure according to other embodiments of the invention and the target power corresponding ptc heater of cell pressure;
Fig. 5 is the block diagram that illustrates according to the switch portion that is made of first power transistor to the, three power transistors of the present invention.
The specific embodiment
Below, describe the preferred embodiments of the present invention with reference to the accompanying drawings in detail.In addition, in explanation of the present invention, may cause omitting this and specifying under the unclear situation of main idea of the present invention for specifying of relevant known configurations and function thinking.
Fig. 2 is the block diagram that illustrates according to the auxiliary electric heater unit of automobile of the present invention.
As shown in Figure 2, the electric heater unit 200 of automobile comprises Department of Communication Force 204, switch portion 206, ptc heater portion 214, current detecting part 222 and control part 224.
Department of Communication Force 204 can be by RS-232, RS-422, USB (Universal Serial Bus, USB), IEEE1394 and CAN (Controller Area Network: formation such as communication controller local area network).Department of Communication Force 204 receives and is installed in the cell pressure correspondent voltage information that the battery supply portion 300 on the vehicle is supplied, and sends this information of voltage to control part 224.
On the other hand, the one MOSFET 208 to the 3rd MOSFET 212 receive cell pressure by drain terminal D from battery supply portion 300, and optionally receive the pwm signal of control part 224, thereby the voltage after the switching manipulation is imposed on ptc heater portion 214 by source terminal S by gate terminal G.
In addition, as shown in Figure 5, switch portion 206 also can be made of first power transistor 208, second power transistor 210 and the 3rd power transistor 212 as power semiconductor, the collector terminal C of first power transistor, 208 to the 3rd power transistors 212 is connected with battery supply portion 300, base terminal B is connected with control part 224, and emitter terminal E is connected with an end of ptc heater portion 214.
Here, Fig. 5 is the block diagram that illustrates according to the switch portion that is made of first power transistor to the, three power transistors of the present invention.
First power transistor, 208 to the 3rd power transistors 212 receive cell pressure by collector terminal C from battery supply portion 300, and optionally receive the pwm signal of control part 224, thereby the voltage after the switching manipulation is imposed on ptc heater portion 214 by emitter terminal E by base terminal B.
On the other hand, ptc heater portion 214 comprises the first ptc heater unit 216, the second ptc heater unit 218 and the 3rd ptc heater unit 220, one end of 216 to the 3rd ptc heater unit 220, the first ptc heater unit is connected to the source terminal S (or emitter terminal E) of the 3rd MOSFET 212 (or the 3rd power transistor) with a MOSFET 208 (or first power transistor) respectively, and the other end of 216 to the 3rd ptc heater unit 220, the first ptc heater unit is connected with current detecting part 222.
At this moment, in 216 to the 3rd ptc heater unit 220, the first ptc heater unit, optionally produce consumed power P by the voltage that optionally provides from switch portion 206.
One end of current detecting part 222 is connected with 216 to the 3rd ptc heater unit 220, the first ptc heater unit of ptc heater portion 214, the other end is connected with control part 224, thereby detects the electric current that flows at least more than one heater unit of 216 to the 3rd ptc heater unit 220, the first ptc heater unit.
Such current detecting part 222 also can be made of resistance (Shunt), and the corresponding electric current of the voltage that produces on detection and the resistance.
On the other hand, in a single day control part 224 receives the corresponding information of voltage of supplying with battery supply portion 300 of cell pressure from Department of Communication Force 204, then carry out information of voltage whether greater than the relatively judgement of reference voltage (Px), when the result who compares judgement is that information of voltage is during less than reference voltage (Px), to be set at target power (Py) with the corresponding heating power of cell pressure (Py), calculate PWM dutycycle cooresponding with it, and apply pwm signal to switch portion 206 with PWM dutycycle of being calculated, when the result who compares judgement is that information of voltage is during greater than reference voltage (Px), to be set at target power (Pmax) with the corresponding maximum heating power of cell pressure (Pmax), calculate PWM dutycycle cooresponding, and apply pwm signal with PWM dutycycle of being calculated to switch portion 206 with it.
Here, the pwm signal of control part 224 optionally is applied to the gate terminal G (or base terminal B) of one or more MOSFET 208 (or first power transistor) to the 3rd MOSFET 212 (or the 3rd power transistor).
In addition, control part 224 is received in the feedback of the electric current that flows in one or more heater units 216 to the 3rd ptc heater unit 220, the first ptc heater unit from current detecting part 222, according to supplying cell pressure or detecting the consumed power (P) that electric current calculates the one or more heater units in 216 to the 3rd ptc heater unit 220, the first ptc heater unit, whether carry out consumed power (P) then equals and the relatively judgement of supplying the corresponding target power of cell pressure (heating power (Py) or maximum heating power (Pmax)), as the result who compares judgement when to be consumed power (P) with target power (heating power (Py) or maximum heating power (Pmax)) unequal, carry out consumed power (P) whether greater than the relatively judgement of target power (heating power (Py) or maximum heating power (Pmax)), when the result who compares judgement is that consumed power (P) is during less than target power (heating power (Py) or maximum heating power (Pmax)), optionally apply the pwm signal that has increased the PWM dutycycle to switch portion 206, so that consumed power (P) reaches target power (heating power (Py) or maximum heating power (Pmax)), when the result who compares judgement is that consumed power (P) is during greater than target power (heating power (Py) or maximum heating power (Pmax)), optionally apply the pwm signal that has reduced the PWM dutycycle to switch portion 206, so that consumed power (P) becomes target power (heating power (Py) or maximum heating power (Pmax)).
Here, shown in Fig. 4 a and Fig. 4 b, control part 224 preferably includes the memory cell (not diagram) of Memory Reference voltage (Px) and target power, wherein target power comprises at the heating power (Px=ax+b) (a, b are natural numbers, and x is a variable) of the ratio setting less than the cell pressure of reference voltage (Px) and at the maximum heating power of setting greater than the cell pressure of reference voltage (Px) (Pmax).
That is, preferably basis is set in advance in target power in the memory cell by the cell pressure of battery supply portion 300 supplies of automobile.
Here, Fig. 4 a is the diagram of curves that illustrates according to the target power of of the present invention and the corresponding ptc heater of cell pressure, and Fig. 4 b illustrates diagram of curves according to other embodiments of the invention and the target power corresponding ptc heater of cell pressure.
Fig. 3 is the diagram of circuit that is used to illustrate according to the auxiliary electrical method of heating of automobile of the present invention.
As shown in Figure 3, in the auxiliary electric heater unit 200 of automobile, battery supply portion 300, and transmits and the corresponding information of voltage of being supplied of cell pressure to Department of Communication Force 204 to drain terminal D (or collector terminal C) the supply cell pressure of a MOSFET 208 of switch portion 206 (or first power transistor) to the 3rd MOSFET 212 (or the 3rd power transistor) along with connecting (On) automobile power source.
Here, switch portion 206 comprises a MOSFET 208, the 2nd MOSFET 210 and the 3rd MOSFET 212 (perhaps first power transistor, second power transistor and the 3rd power transistor), the one MOSFET 208 (or first power transistor) is connected with battery supply portion 300 to the drain terminal D (or collector terminal C) of the 3rd MOSFET212 (or the 3rd power transistor), gate terminal G (or base terminal B) is connected with control part 224, and source terminal S (or emitter terminal E) is connected with an end of ptc heater portion 214.
At this moment, Department of Communication Force 204 receives the information of voltage of the cell pressure of being supplied by battery supply portion 300 and sends this information of voltage to control part 224.
Here, Department of Communication Force 204 can be by RS-232, RS-422, USB (Universal SerialBus, USB), IEEE1394 and CAN (Controller Area Network: formation such as communication controller local area network).
At this moment, control part 224 receives the corresponding information of voltage of being supplied with battery supply portion 300 of cell pressure (S301) from Department of Communication Force 204, carries out information of voltage whether greater than the relatively judgement (S302) of reference voltage (Px).
Here, shown in above-mentioned Fig. 4 a and Fig. 4 b, control part 224 preferably includes the memory cell (not diagram) of Memory Reference voltage (Px) and target power, wherein target power comprises at the heating power (Px=ax+b) (a, b are natural numbers, and x is a variable) of the ratio setting less than the cell pressure of reference voltage (Px) and at the maximum heating power of setting greater than the cell pressure of reference voltage (Px) (Pmax).
That is, preferably in memory cell (not diagram), preestablish reference voltage (Px) and with the corresponding target power of cell pressure.
If compare the result of judgement in above-mentioned steps (S302) is that information of voltage is than reference voltage (Px), for example 27[V] or 13.5[V] reference voltage (Px) little, then control part 224 will with information of voltage (for example, 23.5[V] or 11.75[V]) heating power (Py) of cooresponding ptc heater portion 214 (for example, 500[W]) be set at target power (Py) (S303).
Then, control part 224 calculates the PWM dutycycle (S304) with target power (Py) and the corresponding pwm signal of supply cell pressure, and optionally applies the pwm signal (S305) with PWM dutycycle to one or more MOSFET 208 (or first power transistor) to the gate terminal G (or base terminal B) of the 3rd MOSFET 212 (or the 3rd power transistor).
Here, the pwm signal of the PWM dutycycle that the one MOSFET 208 (or first power transistor) of switch portion 206 calculates according to having of control part 224 to the 3rd MOSFET 212 (or the 3rd power transistor) and carry out switching manipulation, thereby by the one or more heater units supply voltages of source terminal S (or emitter terminal E) in 216 to the 3rd ptc heater unit 220, the first ptc heater unit.
At this moment, produce consumed power (P) by voltage in the one or more heater units in 216 to the 3rd ptc heater unit 220, the first ptc heater unit from switch portion 206 supplies.
Here, one end of 216 to the 3rd ptc heater unit 220, the first ptc heater unit is connected to the source terminal S (or emitter terminal E) of the 3rd MOSFET 212 (or the 3rd power transistor) with a MOSFET 208 (or first power transistor) respectively, and the other end of 216 to the 3rd ptc heater unit 220, the first ptc heater unit is connected with current detecting part 222.
At this moment, the electric current that flows in one or more heater units that current detecting part 222 detects in 216 to the 3rd ptc heater unit 220, the first ptc heater unit.
Afterwards, the feedback (feedback) that control part 224 receives the electric current in one or more heater units in 216 to the 3rd ptc heater unit 220, the first ptc heater unit by current detecting part 222 (S306), and based on detecting consumed power (P) that electric current and supply cell pressure calculate the one or more heater units in 216 to the 3rd ptc heater unit 220, the first ptc heater unit (S307).
Then, whether the consumed power (P) that control part 224 carries out the ptc heater portion 214 of being calculated equals and information of voltage, for example 23.5[V] or 11.75[V] target power (Py) (for example, the relatively judgement (S308) 500W) of the corresponding heating power of information of voltage (Py).
If compare the result of judgement in above-mentioned steps (S308), consumed power (P) is target power (for example, 500[W]), and then control part 224 is carried out above-mentioned step (S305).
If compare the result of judgement in above-mentioned steps (S308), consumed power (P) is not target power (Py), and then control part 224 carries out consumed power (P) whether greater than the relatively judgement (S309) of target power (Py).
If in above-mentioned steps (S309), compare the result of judgement, consumed power (P) is greater than target power (Py), then control part 224 reduces the PWM dutycycle of pwm signal, so that consumed power (P) become with 216 to the 3rd ptc heater unit 220, the first ptc heater unit in the cooresponding target power of one or more heater units (Py) (for example, 500[W]) (S310).
Then, control part 224 is carried out above-mentioned step (S305).
And, if in above-mentioned steps (S309), compare the result of judgement, consumed power (P) is less than target power (Py), then control part 224 increases the PWM dutycycle of pwm signal, so that consumed power (P) become with 216 to the 3rd ptc heater unit 220, the first ptc heater unit in the cooresponding target power of one or more heater units (Py) (for example, 500[W]) (S311).
Then, control part 224 is carried out above-mentioned step (S305).
And, if in above-mentioned steps (S302), compare the result of judgement, information of voltage is than reference voltage (Py), for example 27[V] or 13.5[V] reference voltage (Py) big, then control part 224 will with greater than the information of voltage (Py) of reference voltage (Py) (for example, 29[V] or 15[V]) the maximum heating power (Pmax) of corresponding ptc heater portion 214 (for example, 1000[W]) be set at target power (Pmax) (S312).
Then, control part 224 calculates the PWM dutycycle (S304) with target power (Pmax) and the corresponding pwm signal of supply cell pressure, and optionally applies the pwm signal (S305) with PWM dutycycle to one or more MOSFET208 (or first power transistor) to the gate terminal G (or base terminal B) of the 3rd MOSFET 212 (or the 3rd power transistor).
Here, the pwm signal of the PWM dutycycle that the one MOSFET 208 (or first power transistor) of switch portion 206 calculates according to having of control part 224 to the 3rd MOSFET 212 (or the 3rd power transistor) and carry out switching manipulation, thereby by source terminal S (or emitter terminal E) and the one or more heater units supply voltages in 216 to the 3rd ptc heater unit 220, the first ptc heater unit.
At this moment, produce consumed power (P) by voltage in the one or more heater units in 216 to the 3rd ptc heater unit 220, the first ptc heater unit from switch portion 206 supplies.
Then, the electric current that flows in one or more heater units that current detecting part 222 detects in 216 to the 3rd ptc heater unit 220, the first ptc heater unit.
Afterwards, the feedback (feedback) that control part 224 receives the electric current in one or more heater units in 216 to the 3rd ptc heater unit 220, the first ptc heater unit by current detecting part 222 (S306), and based on detecting consumed power (P) that electric current and supply cell pressure calculate the one or more heater units in 216 to the 3rd ptc heater unit 220, the first ptc heater unit (S307).
Then, whether the consumed power (P) that control part 224 carries out the ptc heater portion 214 of being calculated equals and information of voltage, for example 29[V] or 15[V] target power (Pmax) (for example, the relatively judgement (S308) 1000W) of the corresponding heating power of information of voltage (Pmax).
If compare the result of judgement in above-mentioned steps (S308), consumed power (P) is target power (Pmax) (for example, 1000[W]), and then control part 224 is carried out above-mentioned step (S305).
If compare the result of judgement in above-mentioned steps (S308), consumed power (P) is not target power (Pmax), and then control part 224 carries out consumed power (P) whether greater than the relatively judgement (S309) of target power (Pmax).
If in above-mentioned steps (S309), compare the result of judgement, consumed power (P) is greater than target power (Pmax), then control part 224 reduces the PWM dutycycle of pwm signal, so that consumed power (P) become with 216 to the 3rd ptc heater unit 220, the first ptc heater unit in the cooresponding target power of one or more heater units (Pmax) (for example, 1000[W]) (S310).
Then, control part 224 is carried out above-mentioned step (S305).
In addition, if compare the result of judgement in above-mentioned steps (S309) is that consumed power (P) is less than target power (Pmax), then control part 224 increases the PWM dutycycle of pwm signal, so that consumed power (P) become with 216 to the 3rd ptc heater unit 220, the first ptc heater unit in the cooresponding target power of one or more heater units (Pmax) (for example, 1000[W]) (S311).
Then, control part 224 is carried out above-mentioned step (S305).
As mentioned above, auxiliary electrical method of heating according to automobile of the present invention, when voltage battery is low because the battery consumption of automobile is excessive, reduce the target power of ptc heater, load with the battery that reduces automobile, when the enough cell pressure of output, can heat with target power, therefore can obtain not make the effect of the battery overwork of automobile.And owing to utilize the electric current of ptc heater to calculate the consumed power that consumes in ptc heater, and the control consumed power makes it near target power, therefore has the effect of the accurate consumed power that can control ptc heater.
More than explanation has only illustrated illustratively and just can carry out multiple modification and distortion in the scope that does not break away from essential characteristics of the present invention so long as have the technical personnel of common practise in the technical field under the present invention by technical conceive of the present invention.Therefore, disclosed embodiment is used for illustrating technical conceive of the present invention rather than is used for limiting technical conceive of the present invention among the present invention, and the scope of technical conceive of the present invention is not limited by these embodiment.Protection scope of the present invention should be explained by claims, and all technical conceives that should be interpreted as in the scope equal with it all should be included in the interest field of the present invention.
Claims (13)
1. an automobile auxiliary electric heater unit is characterized in that, comprising:
Switch portion comprises one or more switch elements, and carries out switching manipulation according to pwm signal and come switching battery voltage;
Temperature booster portion comprises one or more heater units, and described one or more heater units are connected with the output of described switch element respectively;
Current detecting part is connected with described heater unit, detects the electric current of the described temperature booster portion that flows through; And
Control part, after receiving the information of voltage of cell pressure, itself and reference voltage are compared, if described information of voltage is lower than described reference voltage, then will be set at target power with the proportional heating power of cell pressure, if described information of voltage is higher than described reference voltage, be target power then with predetermined maximum heating power setting, to generate described pwm signal with the corresponding PWM dutycycle of setting of described target power, and apply described pwm signal to described switch element, calculate the consumed power of actual consumption according to the detection electric current of described current detecting part, then the PWM dutycycle of regulating described pwm signal according to the described consumed power that calculates and described target power.
2. automobile auxiliary electric heater unit as claimed in claim 1, wherein,
Described switch element comprises one or more MOSFET,
The gate terminal (G) of described MOSFET to a N MOSFET is connected with described control part, and drain terminal (D) is connected with battery supply portion, and source terminal (S) is connected with described heater unit respectively, and wherein said N is a natural number.
3. automobile auxiliary electric heater unit as claimed in claim 1, wherein,
Described switch element comprises one or more transistors,
The transistorized base terminal of described the first transistor to the N (B) is connected with described control part, and collector terminal (C) is connected with battery supply portion, and emitter terminal (E) is connected with described heater unit respectively, and wherein said N is a natural number.
4. automobile auxiliary electric heater unit as claimed in claim 1, wherein,
Also comprise Department of Communication Force, this Department of Communication Force receives and transmits the described information of voltage of described cell pressure.
5. automobile auxiliary electric heater unit as claimed in claim 4, wherein,
Described Department of Communication Force is by a formation among RS-232, RS-422, USB (Universal Serial Bus), IEEE1394 and CAN (the Controller Area Network) communication.
6. automobile auxiliary electric heater unit as claimed in claim 1, wherein,
Described control part comprises the communication unit that receives described information of voltage.
7. automobile auxiliary electric heater unit as claimed in claim 1, wherein,
When the consumed power of described calculating was greater than or less than described target power, described control part reduced or increases the described PWM dutycycle of described pwm signal respectively.
8. automobile auxiliary electric heater unit as claimed in claim 1, wherein,
Described control part is exported described pwm signal to one or more described switch elements individually.
9. automobile auxiliary electric heater unit as claimed in claim 1, wherein,
Described current detecting part forms one, and is connected with one or more heater units.
10. automobile auxiliary electrical method of heating may further comprise the steps:
After receiving the information of voltage of cell pressure, itself and reference voltage are compared;
If described information of voltage is lower than reference voltage, then will be set at target power with the proportional heating power of the cell pressure that is lower than described reference voltage, if described information of voltage is higher than described reference voltage, be target power then with predetermined maximum heating power setting;
Generating pwm signal, and apply described pwm signal to switch portion with the corresponding PWM dutycycle of the described target power of setting; And
Calculate the consumed power of actual consumption, and the PWM dutycycle of regulating described pwm signal according to the described consumed power that calculates and described target power.
11. automobile as claimed in claim 10 auxiliary electrical method of heating, wherein,
In the step of the PWM dutycycle of regulating described pwm signal, when the consumed power of described calculating greater than or when being lower than described target power, reduce or increase the PWM dutycycle of described pwm signal respectively.
12. automobile as claimed in claim 10 auxiliary electrical method of heating, wherein,
In the step that applies to switch portion,
Apply the described pwm signal of described PWM dutycycle individually to one or more switch elements of described switch portion.
13. automobile as claimed in claim 10 auxiliary electrical method of heating, wherein,
In the step of the described PWM dutycycle of regulating described pwm signal,
The described consumed power of calculating actual consumption in one or more heater units of heating part according to the detection electric current and the cell pressure of described current detecting part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070117541A KR100894008B1 (en) | 2007-11-16 | 2007-11-16 | Apparatus and method for additional electrical heating device of vehicles |
| KR10-2007-0117541 | 2007-11-16 | ||
| KR1020070117541 | 2007-11-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101434184A true CN101434184A (en) | 2009-05-20 |
| CN101434184B CN101434184B (en) | 2013-05-15 |
Family
ID=40680246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101742446A Expired - Fee Related CN101434184B (en) | 2007-11-16 | 2008-11-14 | Auxiliary electric heating apparatus for automobile and auxiliary electric heating method for automobile |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100894008B1 (en) |
| CN (1) | CN101434184B (en) |
| DE (1) | DE102008056757A1 (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890926A (en) * | 2010-07-30 | 2010-11-24 | 深圳市锐明视讯技术有限公司 | Vehicle heating system and vehicle heating method |
| CN102950993A (en) * | 2011-08-16 | 2013-03-06 | 汉拏空调株式会社 | Electric heater apparatus for electric vehicle and method of controlling the same |
| CN103597907A (en) * | 2011-08-04 | 2014-02-19 | 三菱重工汽车空调系统株式会社 | Heater control device, method, and program |
| CN103775268A (en) * | 2012-10-22 | 2014-05-07 | 北汽福田汽车股份有限公司 | Cold started fuel oil heating and air intake preheating system and method for automotive engine |
| CN104691271A (en) * | 2013-12-10 | 2015-06-10 | 现代自动车株式会社 | Heater control system for environmental friendly vehicle and method thereof |
| CN104948374A (en) * | 2015-07-14 | 2015-09-30 | 安徽江淮汽车股份有限公司 | Heater loop control method and system as well as heater loop |
| CN104978493A (en) * | 2015-07-13 | 2015-10-14 | 广东美的制冷设备有限公司 | Power estimation method and device for PTC (positive temperature coefficient) electric heater in air-conditioning system |
| CN105299819A (en) * | 2014-07-08 | 2016-02-03 | 美的集团武汉制冷设备有限公司 | Heating control device of air conditioner and power control method for heating control device |
| CN105554918A (en) * | 2014-10-28 | 2016-05-04 | 罗伯特·博世有限公司 | method and apparatus for heating a providing mechanism in connection with an internal combustion engine |
| US20160143090A1 (en) * | 2013-06-17 | 2016-05-19 | Valeo Systemes Thermiques | Control for electrical heating circuit, in particular for motor vehicle |
| CN105682950A (en) * | 2013-10-25 | 2016-06-15 | 三菱重工汽车空调系统株式会社 | Apparatus and method for driving switching element, and vehicle air-conditioning apparatus |
| CN106347067A (en) * | 2016-07-29 | 2017-01-25 | 北京新能源汽车股份有限公司 | Electric car and control method and system of PTC electric heater for electric car |
| CN106553499A (en) * | 2015-09-25 | 2017-04-05 | 北汽福田汽车股份有限公司 | A kind of electrically heated electric power system of vehicle air conditioner and method |
| CN110881225A (en) * | 2018-09-05 | 2020-03-13 | 杭州三花研究院有限公司 | Electric heater and control method thereof |
| CN112382809A (en) * | 2020-12-02 | 2021-02-19 | 普联技术有限公司 | Intelligent auxiliary heating method and device for lithium battery and storage medium |
| CN112721572A (en) * | 2021-02-08 | 2021-04-30 | 镇江海姆霍兹传热传动系统有限公司 | Electric vehicle, control system thereof and electric heating device |
| CN112721638A (en) * | 2021-02-08 | 2021-04-30 | 镇江海姆霍兹传热传动系统有限公司 | Electric vehicle and electric heating device thereof |
| CN112840216A (en) * | 2018-11-06 | 2021-05-25 | 法雷奥热系统公司 | Method for detecting overheating of heating device and corresponding control unit |
| CN113173054A (en) * | 2021-06-24 | 2021-07-27 | 江铃汽车股份有限公司 | VCU control method of water heating PTC of pure electric Bus vehicle |
| CN116567871A (en) * | 2023-07-11 | 2023-08-08 | 深圳艾为电气技术有限公司 | PTC power control method and device based on multipath PWM |
| CN117394834A (en) * | 2023-12-08 | 2024-01-12 | 深圳和而泰汽车电子科技有限公司 | Switch tube control method, domain controller and automobile |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2371588B1 (en) * | 2010-03-26 | 2012-10-10 | Eberspächer catem GmbH & Co. KG | Electric heating device |
| EP2371589B1 (en) * | 2010-03-26 | 2012-09-05 | Eberspächer catem GmbH & Co. KG | Electric heating device |
| JP5535740B2 (en) * | 2010-04-14 | 2014-07-02 | 三菱重工業株式会社 | Heat medium heating device and vehicle air conditioner using the same |
| FR2967093B1 (en) * | 2010-11-09 | 2012-11-16 | Valeo Systemes Thermiques | DEVICE AND METHOD FOR CONTROLLING AN ELECTRICAL RADIATOR OF A VENTILATION, HEATING AND / OR AUTOMOTIVE AIR CONDITIONING SYSTEM |
| SE535512C2 (en) * | 2010-12-10 | 2012-09-04 | Scania Cv Ab | Comfort heating control system for a vehicle equipped with comfort heating system with one or more heating loops |
| DE102011009672A1 (en) * | 2011-01-28 | 2012-08-02 | Webasto Ag | Electric heating, vehicle with electric heating and method of controlling an electric heater |
| DE102011007817A1 (en) * | 2011-04-20 | 2012-10-25 | Webasto Ag | Electric heating, vehicle with electric heating and method of controlling an electric heater |
| DE102011057105B4 (en) * | 2011-12-28 | 2016-11-17 | Webasto Ag | Electric vehicle heater |
| EP2629583B1 (en) | 2012-02-16 | 2017-01-11 | Mahle Behr France Rouffach S.A.S | Electric heater |
| KR101482079B1 (en) * | 2012-06-27 | 2015-01-13 | 한라비스테온공조 주식회사 | Ptc heater of air conditioning system for automotive vehicles and control method of the same |
| KR101423149B1 (en) | 2012-06-27 | 2014-07-25 | 한라비스테온공조 주식회사 | Ptc heater of air conditioning system for automotive vehicles |
| DE102012022232A1 (en) * | 2012-11-14 | 2014-05-15 | Voss Automotive Gmbh | System for operating heated medium line for conducting liquid medium in vehicle, has thermal protection device for temperature-dependent and/or voltage-dependent deactivation of heating of heated medium line and/or line connector |
| DE102016009831A1 (en) | 2015-09-03 | 2017-03-09 | I.G. Bauerhin Gmbh | Method for heating surfaces in the interior of a vehicle |
| DE102016109039A1 (en) * | 2016-02-17 | 2017-08-17 | Dbk David + Baader Gmbh | Electric device, in particular heater, and device and method for controlling an electrical device |
| FR3061871B1 (en) * | 2017-01-18 | 2020-05-01 | Valeo Systemes Thermiques | ELECTRIC HEATING DEVICE FOR A MOTOR VEHICLE |
| FR3077702A1 (en) * | 2018-02-08 | 2019-08-09 | Psa Automobiles Sa | DEVICE FOR MONITORING THE POWER SUPPLY OF ELECTRICAL HEATING MEANS OF A SYSTEM, BASED ON THE ELECTRIC POWER AVAILABLE. |
| FR3077704B1 (en) * | 2018-02-08 | 2022-09-09 | Psa Automobiles Sa | METHOD FOR CONTROLLING THE POWER SUPPLY OF ELECTRIC HEATING MEANS OF A SYSTEM, DEPENDING ON THE AVAILABLE ELECTRICAL POWER, NEEDS AND A PRIORITY. |
| FR3077703B1 (en) * | 2018-02-08 | 2020-01-17 | Psa Automobiles Sa | METHOD FOR CONTROLLING THE SUPPLY OF ELECTRIC HEATING MEANS OF A SYSTEM, ACCORDING TO THE AVAILABLE ELECTRIC POWER AND THE NEEDS. |
| FR3092462B1 (en) * | 2019-01-31 | 2021-01-15 | Continental Automotive Gmbh | Method of heating a tank |
| KR20220094675A (en) * | 2020-12-29 | 2022-07-06 | 한온시스템 주식회사 | High Voltage Heater having Open Load Detection Device and Open Load Detection Method using the Same |
| FR3126589B1 (en) * | 2021-08-26 | 2023-08-11 | Valeo Systemes Thermiques | METHOD FOR VOLTAGE LIMITATION OF THE EFFECTIVE VOLTAGE OF AT LEAST ONE ELECTRICAL AND/OR ELECTRONIC COMPONENT AND CORRESPONDING ELECTRONIC SYSTEM |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5075608A (en) * | 1974-06-24 | 1991-12-24 | Erdman David M | Control system, electronically commutated motor system, draft inducer apparatus and method |
| ATE272933T1 (en) * | 2002-10-30 | 2004-08-15 | Catem Gmbh & Co Kg | ELECTRIC HEATING DEVICE WITH MULTIPLE HEATING ELEMENTS |
| KR200338737Y1 (en) * | 2003-08-12 | 2004-01-24 | 노창균 | The power control apparatus of vehicular computer |
| DE102004019607A1 (en) * | 2004-04-22 | 2006-01-12 | Webasto Ag | Heating and air conditioning system for a motor vehicle |
| KR101146033B1 (en) * | 2005-02-01 | 2012-05-14 | 한라공조주식회사 | Car heating system using ptc heater |
| JP2009283790A (en) * | 2008-05-23 | 2009-12-03 | Nikon Corp | Exposure device and vibration prevention method of exposure device |
-
2007
- 2007-11-16 KR KR1020070117541A patent/KR100894008B1/en active IP Right Grant
-
2008
- 2008-11-11 DE DE102008056757A patent/DE102008056757A1/en not_active Withdrawn
- 2008-11-14 CN CN2008101742446A patent/CN101434184B/en not_active Expired - Fee Related
Cited By (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890926B (en) * | 2010-07-30 | 2013-06-05 | 深圳市锐明视讯技术有限公司 | Vehicle heating system and vehicle heating method |
| CN101890926A (en) * | 2010-07-30 | 2010-11-24 | 深圳市锐明视讯技术有限公司 | Vehicle heating system and vehicle heating method |
| CN103597907B (en) * | 2011-08-04 | 2016-03-02 | 三菱重工汽车空调系统株式会社 | Heater control device and method and program |
| CN103597907A (en) * | 2011-08-04 | 2014-02-19 | 三菱重工汽车空调系统株式会社 | Heater control device, method, and program |
| US9198231B2 (en) | 2011-08-04 | 2015-11-24 | Mitsubishi Heavy Industries Automotive Thermal Systems Co., Ltd. | Heater control device, method and program |
| CN102950993A (en) * | 2011-08-16 | 2013-03-06 | 汉拏空调株式会社 | Electric heater apparatus for electric vehicle and method of controlling the same |
| CN102950993B (en) * | 2011-08-16 | 2015-03-25 | 汉拿伟世通空调有限公司 | Electric heater apparatus for electric vehicle and method of controlling the same |
| CN103775268A (en) * | 2012-10-22 | 2014-05-07 | 北汽福田汽车股份有限公司 | Cold started fuel oil heating and air intake preheating system and method for automotive engine |
| CN105532072B (en) * | 2013-06-17 | 2019-07-30 | 法雷奥热系统公司 | It is used in particular for the control of the electric heating circuit of motor vehicle |
| US20160143090A1 (en) * | 2013-06-17 | 2016-05-19 | Valeo Systemes Thermiques | Control for electrical heating circuit, in particular for motor vehicle |
| CN105682950B (en) * | 2013-10-25 | 2018-06-01 | 三菱重工汽车空调系统株式会社 | The driving device and driving method of switch element, air conditioner for motor vehicle |
| US10369867B2 (en) | 2013-10-25 | 2019-08-06 | Mitsubishi Heavy Industries Thermal Systems, Ltd. | Apparatus and method for driving a switching element, and a vehicle air-conditioning apparatus |
| CN105682950A (en) * | 2013-10-25 | 2016-06-15 | 三菱重工汽车空调系统株式会社 | Apparatus and method for driving switching element, and vehicle air-conditioning apparatus |
| CN104691271A (en) * | 2013-12-10 | 2015-06-10 | 现代自动车株式会社 | Heater control system for environmental friendly vehicle and method thereof |
| CN105299819A (en) * | 2014-07-08 | 2016-02-03 | 美的集团武汉制冷设备有限公司 | Heating control device of air conditioner and power control method for heating control device |
| CN105299819B (en) * | 2014-07-08 | 2018-06-01 | 美的集团武汉制冷设备有限公司 | The heating control device and its Poewr control method of air conditioner |
| CN105554918A (en) * | 2014-10-28 | 2016-05-04 | 罗伯特·博世有限公司 | method and apparatus for heating a providing mechanism in connection with an internal combustion engine |
| CN104978493A (en) * | 2015-07-13 | 2015-10-14 | 广东美的制冷设备有限公司 | Power estimation method and device for PTC (positive temperature coefficient) electric heater in air-conditioning system |
| CN104948374B (en) * | 2015-07-14 | 2017-04-05 | 安徽江淮汽车集团股份有限公司 | A kind of control method and system, heater circuit of control heater circuit |
| CN104948374A (en) * | 2015-07-14 | 2015-09-30 | 安徽江淮汽车股份有限公司 | Heater loop control method and system as well as heater loop |
| CN106553499B (en) * | 2015-09-25 | 2019-07-23 | 北京宝沃汽车有限公司 | A kind of electrically heated power supply system of vehicle air conditioner and method |
| CN106553499A (en) * | 2015-09-25 | 2017-04-05 | 北汽福田汽车股份有限公司 | A kind of electrically heated electric power system of vehicle air conditioner and method |
| CN106347067A (en) * | 2016-07-29 | 2017-01-25 | 北京新能源汽车股份有限公司 | Electric car and control method and system of PTC electric heater for electric car |
| CN110881225A (en) * | 2018-09-05 | 2020-03-13 | 杭州三花研究院有限公司 | Electric heater and control method thereof |
| CN112840216A (en) * | 2018-11-06 | 2021-05-25 | 法雷奥热系统公司 | Method for detecting overheating of heating device and corresponding control unit |
| CN112382809A (en) * | 2020-12-02 | 2021-02-19 | 普联技术有限公司 | Intelligent auxiliary heating method and device for lithium battery and storage medium |
| CN112382809B (en) * | 2020-12-02 | 2022-07-05 | 普联技术有限公司 | Intelligent auxiliary heating method and device for lithium battery and storage medium |
| CN112721572A (en) * | 2021-02-08 | 2021-04-30 | 镇江海姆霍兹传热传动系统有限公司 | Electric vehicle, control system thereof and electric heating device |
| CN112721638A (en) * | 2021-02-08 | 2021-04-30 | 镇江海姆霍兹传热传动系统有限公司 | Electric vehicle and electric heating device thereof |
| CN113173054A (en) * | 2021-06-24 | 2021-07-27 | 江铃汽车股份有限公司 | VCU control method of water heating PTC of pure electric Bus vehicle |
| CN116567871A (en) * | 2023-07-11 | 2023-08-08 | 深圳艾为电气技术有限公司 | PTC power control method and device based on multipath PWM |
| CN116567871B (en) * | 2023-07-11 | 2023-12-15 | 深圳艾为电气技术有限公司 | PTC power control method and device based on multipath PWM |
| CN117394834A (en) * | 2023-12-08 | 2024-01-12 | 深圳和而泰汽车电子科技有限公司 | Switch tube control method, domain controller and automobile |
| CN117394834B (en) * | 2023-12-08 | 2024-04-05 | 深圳和而泰汽车电子科技有限公司 | Switch tube control method, domain controller and automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008056757A1 (en) | 2009-06-18 |
| KR100894008B1 (en) | 2009-04-17 |
| CN101434184B (en) | 2013-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101434184B (en) | Auxiliary electric heating apparatus for automobile and auxiliary electric heating method for automobile | |
| CN100509465C (en) | A vehicle battery temperature control method and system | |
| CN102950993B (en) | Electric heater apparatus for electric vehicle and method of controlling the same | |
| JP5291007B2 (en) | Glow plug energization control method | |
| US20070278209A1 (en) | Control system for operting automotive vehicle components | |
| KR101518924B1 (en) | Heater control system for environmental friendly vehicle and method thereof | |
| US20110233189A1 (en) | Electrical heating device | |
| EP3672360B1 (en) | Operating method for an electric heater | |
| GB2591236A (en) | A method for determining a charging strategy for a high voltage battery of an electrically powered motor vehicle, as well as a battery charging management sys | |
| CN105416005A (en) | Heater of air conditioner of blade electric vehicle | |
| KR101482079B1 (en) | Ptc heater of air conditioning system for automotive vehicles and control method of the same | |
| KR20130019343A (en) | Electric heater apparatus for electric vehicle and its control method | |
| JP2011207472A (en) | Electrical heating device | |
| CN110978943B (en) | Electric motor coach air conditioner PTC heater operation control method, computer readable storage medium and air conditioner | |
| KR20170029068A (en) | Air conditioning system for automotive vehicles | |
| KR20130091400A (en) | Air conditioning system for automotive vehicles | |
| KR20170002028A (en) | System and method for controlling a radiation heater for a vehicle | |
| CN216886167U (en) | Electric heating air control device of electric motor coach | |
| KR100447437B1 (en) | Vehicle Defroster Controlling Apparatus and Controlling Method for the Same | |
| KR101423149B1 (en) | Ptc heater of air conditioning system for automotive vehicles | |
| CN116803711A (en) | Air conditioner control system for vehicle | |
| JP4711492B2 (en) | Method for raising water temperature in water electrolysis system | |
| CN101890926B (en) | Vehicle heating system and vehicle heating method | |
| JP3282532B2 (en) | Load drive | |
| CN204009606U (en) | For the PTC electric heater unit of electric vehicle and there is its electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20171114 |