CN101434184B - Auxiliary electric heating apparatus for automobile and auxiliary electric heating method for automobile - Google Patents
Auxiliary electric heating apparatus for automobile and auxiliary electric heating method for automobile Download PDFInfo
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- CN101434184B CN101434184B CN2008101742446A CN200810174244A CN101434184B CN 101434184 B CN101434184 B CN 101434184B CN 2008101742446 A CN2008101742446 A CN 2008101742446A CN 200810174244 A CN200810174244 A CN 200810174244A CN 101434184 B CN101434184 B CN 101434184B
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Air-Conditioning For Vehicles (AREA)
- Secondary Cells (AREA)
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 auxiliary electric heater unit and the auxiliary electrical heater method of automobile.
Background technology
Usually, the electric heater unit of automobile is used for the room air of heating 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 consist of 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 the control signal corresponding with the heating power that sets in advance the ptc heater 17 on power transistor 11 to the power transistor 11 as power semiconductor.
Like this, power transistor 11 is according to the control signal of microprocessor 16 and apply (the Pulse Width Modulation: pulse width modulation) the corresponding electric current of signal with PWM to ptc heater 17.
At this moment, in ptc heater 17, produce predetermined heating power by the electric current corresponding with pwm signal on power transistor 11, and its temperature rises thus.
That is, microprocessor 16 can be controlled by the power transistor 11 as power semiconductor, in order to 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; perhaps the temperature of the auxiliary electric heater unit of automobile or ptc heater rises due to excessive power, and result causes the auxiliary electric heater unit of automobile or ptc heater to damage.
Summary of the invention
The object 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 automobile auxiliary electric heater unit and the automobile auxiliary electrical heater method of the target power of supply cell pressure.
The automobile that the present invention relates to calculates the consumed power corresponding with the electric current of ptc heater with auxiliary electric heater unit and automobile with the auxiliary electrical heater method, and regulates the PWM dutycycle of pwm signal so that consumed power reaches the target power of supply cell pressure.
Effect
According to the present invention, when due to the excessive and cell pressure of the battery consumption of automobile when low, 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 thus not make the effect of the battery overwork of automobile.
In addition, the present invention utilizes the electric current of ptc heater to calculate the consumed power that consumes in ptc heater, and controls consumed power and make it near target power, therefore 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 section 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 section that flows through, control part, compare with reference voltage after receiving the information of voltage of cell pressure, if described information of voltage is lower than described reference voltage, heating power proportional to cell pressure is set as target power, if described information of voltage is higher than described reference voltage, be target power with predetermined maximum heating power setting, generate described pwm signal with the PWM dutycycle corresponding with the described target power of setting, and this pwm signal is 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 natural number) is connected with described control part, drain terminal (D) is connected with battery supply section, 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 the first power transistor to the N (N is natural number) power transistor is connected with described control part, collector terminal (C) is connected with battery supply section, 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, 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 respectively or increases the described PWM dutycycle of described pwm signal.
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, will to be set as target power lower than the proportional heating power of the cell pressure of described reference voltage, if described information of voltage higher than described reference voltage, is target power with predetermined maximum heating power setting; Generate pwm signal with the PWM dutycycle corresponding with the described target power of setting, and this pwm signal is imposed on switch portion; 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 respectively or increase the PWM dutycycle of described pwm signal.
In addition, in the present invention, in the step that applies to switch portion, apply individually the described pwm signal of described PWM dutycycle 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 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 for the diagram of circuit of explanation according to the auxiliary electrical heater method of automobile of the present invention;
Fig. 4 a is the figure that illustrates according to the target power of the ptc heater corresponding with cell pressure of the present invention;
Fig. 4 b is the figure that the target power of the ptc heater corresponding with cell pressure according to other embodiments of the invention is shown;
Fig. 5 is the block diagram that illustrates according to the switch portion that is made of the first power transistor to the three power transistors of the present invention.
The specific embodiment
Below, describe the preferred embodiments of the present invention in detail with reference to accompanying drawing.In addition, in explanation of the present invention, may cause omitting this and illustrating in the unclear situation of main idea of the present invention for illustrating of relevant known features 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 section 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: the controller local area network) formation such as communication.Department of Communication Force 204 receives the corresponding information of voltage of cell pressure of supplying with the battery supply section 300 that is arranged on vehicle, 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 pressures by drain terminal D from battery supply section 300, and optionally receive the pwm signal of control part 224 by gate terminal G, thereby the voltage after switching manipulation is imposed on ptc heater section 214 by source terminal S.
In addition, as shown in Figure 5, switch portion 206 also can be made of the first power transistor 208, the second power transistor 210 and the 3rd power transistor 212 as power semiconductor, the collector terminal C of the first power transistor 208 to the 3rd power transistors 212 is connected with battery supply section 300, base terminal B is connected with control part 224, and emitter terminal E is connected with an end of ptc heater section 214.
Here, Fig. 5 is the block diagram that illustrates according to the switch portion that is made of the first power transistor to the three power transistors of the present invention.
The first power transistor 208 to the 3rd power transistors 212 receive cell pressures by collector terminal C from battery supply section 300, and optionally receive the pwm signal of control part 224 by base terminal B, thereby the voltage after switching manipulation is imposed on ptc heater section 214 by emitter terminal E.
On the other hand, ptc heater section 214 comprises the first ptc heater unit 216, the second ptc heater unit 218 and the 3rd ptc heater unit 220, one end of the first 216 to the 3rd ptc heater unit 220, 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, optionally produce consumed power P by the voltage that optionally provides from switch portion 206 in 216 to the 3rd ptc heater unit 220, the first ptc heater unit.
216 to the 3rd ptc heater unit 220, the first ptc heater unit of one end of current detecting part 222 and ptc heater section 214 are connected, 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 resistance.
on the other hand, control part 224 is in case receive the information of voltage corresponding with the cell pressure of battery supply section 300 supplies from Department of Communication Force 204, carry out information of voltage whether greater than the relatively judgement of reference voltage (Px), when the result that compares judgement is that information of voltage is during less than reference voltage (Px), heating power (Py) that will be corresponding with cell pressure is set as target power (Py), calculate the PWM dutycycle suitable with it, and apply the pwm signal with PWM dutycycle of calculating to switch portion 206, when the result that compares judgement is that information of voltage is during greater than reference voltage (Px), maximum heating power (Pmax) that will be corresponding with cell pressure is set as target power (Pmax), calculate the PWM dutycycle suitable with it, and apply the pwm signal with PWM dutycycle of calculating to switch portion 206.
Here, the pwm signal of control part 224 optionally is applied 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).
in addition, the feedback of the electric current that control part 224 flows from current detecting part 222 is received in one or more heater units 216 to the 3rd ptc heater unit 220, the first ptc heater unit, according to the supply cell pressure or detect 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, then carry out consumed power (P) and whether equal relatively judgement with the corresponding target power (heating power (Py) or maximum heating power (Pmax)) of supply cell pressure, when the result that compares judgement when to be consumed power (P) unequal with target power (heating power (Py) or maximum heating power (Pmax)), 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 that 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 that 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, as 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 for the heating power (Px=ax+b) (a, b are natural numbers, and x is variable) of the ratio setting less than the cell pressure of reference voltage (Px) and for the maximum heating power (Pmax) of setting greater than the cell pressure of reference voltage (Px).
That is, preferably according to by the cell pressure of battery supply section 300 supplies of automobile, target power being set in advance in memory cell.
Here, Fig. 4 a is the diagram of curves that illustrates according to the target power of the ptc heater corresponding with cell pressure of the present invention, and Fig. 4 b is the diagram of curves that the target power of the ptc heater corresponding with cell pressure according to other embodiments of the invention is shown.
Fig. 3 is for the diagram of circuit of explanation according to the auxiliary electrical heater method of automobile of the present invention.
As shown in Figure 3, in the auxiliary electric heater unit 200 of automobile, battery supply section 300 is drain terminal D (or collector terminal C) the supply cell pressure to the MOSFET 208 (or first power transistor) of switch portion 206 to the 3rd MOSFET 212 (or the 3rd power transistor) along with connecting (On) automobile power source, and transmits the information of voltage corresponding with the cell pressure of supplying to Department of Communication Force 204.
here, switch portion 206 comprises a MOSFET 208, the 2nd MOSFET 210, and the 3rd MOSFET 212 (perhaps the first power transistor, the second power transistor, and the 3rd power transistor), the one MOSFET 208 (or first power transistor) is connected with battery supply section 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, source terminal S (or emitter terminal E) is connected with an end of ptc heater section 214.
At this moment, Department of Communication Force 204 receives by the information of voltage of the cell pressure of battery supply section 300 supplies 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: the controller local area network) formation such as communication.
At this moment, control part 224 receives the corresponding information of voltage (S301) of cell pressure of supplying with battery supply section 300 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 Fig. 4 a described above 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 for the heating power (Px=ax+b) (a, b are natural numbers, and x is variable) of the ratio setting less than the cell pressure of reference voltage (Px) and for the maximum heating power (Pmax) of setting greater than the cell pressure of reference voltage (Px).
That is, preferably preset in memory cell (not diagram) reference voltage (Px) and with the corresponding target power of cell pressure.
That information of voltage is than reference voltage (Px), for example 27[V if compare the result of judgement in above-mentioned steps (S302)] or 13.5[V] reference voltage (Px) little, control part 224 will with information of voltage (for example, 23.5[V] or 11.75[V]) heating power (Py) of suitable ptc heater section 214 (for example, 500[W]) be set as target power (Py) (S303).
Then, control part 224 calculates the PWM dutycycle (S304) of the pwm signal corresponding with target power (Py) and supply cell pressure, and the gate terminal G (or base terminal B) to one or more MOSFET208 (or first power transistor) to the 3rd MOSFET 212 (or the 3rd power transistor) optionally applies the pwm signal (S305) with PWM dutycycle.
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, thus by source terminal S (or emitter terminal E) 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 the voltage from switch portion 206 supplies in the one or more heater units in 216 to the 3rd ptc heater unit 220, the first ptc heater unit.
Here, one end of the first 216 to the 3rd ptc heater unit 220, 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, current detecting part 222 detects the electric current that flows in one or more heater units 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) of control part 224 carries out calculating ptc heater section 214 equals and information of voltage, for example 23.5[V] or 11.75[V] target power (Py) (for example, 500W) the relatively judgement (S308) of the corresponding heating power (Py) of information of voltage.
If compare the result of judgement in above-mentioned steps (S308), consumed power (P) is target power (for example, 500[W]), and control part 224 is carried out above-mentioned steps (S305).
If compare the result of judgement in above-mentioned steps (S308), consumed power (P) is not target power (Py), and control part 224 carries out consumed power (P) whether greater than the relatively judgement (S309) of target power (Py).
If compare the result of judgement in above-mentioned steps (S309), consumed power (P) is greater than target power (Py), 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 suitable target power (Py) of one or more heater units (for example, 500[W]) (S310).
Then, control part 224 is carried out above-mentioned step (S305).
And, if compare the result of judgement in above-mentioned steps (S309), consumed power (P) is less than target power (Py), 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 suitable target power (Py) of one or more heater units (for example, 500[W]) (S311).
Then, control part 224 is carried out above-mentioned step (S305).
And, if compare the result of judgement in above-mentioned steps (S302), information of voltage is than reference voltage (Py), for example 27[V] or 13.5[V] reference voltage (Py) large, 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 section 214 (for example, 1000[W]) be set as target power (Pmax) (S312).
Then, control part 224 calculates the PWM dutycycle (S304) of the pwm signal corresponding with target power (Pmax) and supply cell pressure, and the gate terminal G (or base terminal B) to one or more MOSFET208 (or first power transistor) to the 3rd MOSFET 212 (or the 3rd power transistor) optionally applies the pwm signal (S305) with PWM dutycycle.
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 the voltage from switch portion 206 supplies in the one or more heater units in 216 to the 3rd ptc heater unit 220, the first ptc heater unit.
Then, current detecting part 222 detects the electric current that flows in one or more heater units 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) of control part 224 carries out calculating ptc heater section 214 equals and information of voltage, for example 29[V] or 15[V] target power (Pmax) (for example, 1000W) the relatively judgement (S308) of the corresponding heating power (Pmax) of information of voltage.
If compare the result of judgement in above-mentioned steps (S308), consumed power (P) is target power (Pmax) (for example, 1000[W]), and control part 224 is carried out above-mentioned steps (S305).
If compare the result of judgement in above-mentioned steps (S308), consumed power (P) is not target power (Pmax), and control part 224 carries out consumed power (P) whether greater than the relatively judgement (S309) of target power (Pmax).
If compare the result of judgement in above-mentioned steps (S309), consumed power (P) is greater than target power (Pmax), 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 suitable target power (Pmax) of one or more heater units (for example, 1000[W]) (S310).
Then, control part 224 is carried out above-mentioned step (S305).
In addition, that consumed power (P) is less than target power (Pmax) if compare the result of judgement in above-mentioned steps (S309), 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 suitable target power (Pmax) of one or more heater units (for example, 1000[W]) (S311).
Then, control part 224 is carried out above-mentioned step (S305).
As mentioned above, auxiliary electrical heater method according to automobile of the present invention, when the voltage of and battery excessive due to the battery consumption of automobile is low, 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, calculate the consumed power that consumes due to the electric current that utilizes ptc heater in ptc heater, and control consumed power and make it near target power, therefore have the effect of the accurate consumed power that can control ptc heater.
Above explanation has only illustrated illustratively just can carry out multiple modification and distortion 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 in the scope that does not break away from essential characteristics of the present invention.Therefore, in the present invention, disclosed embodiment is used for illustrating technical conceive of the present invention rather than is used for limiting technical conceive of 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 scope equal with it all should be included in 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 section 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 section 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, heating power proportional to cell pressure is set as target power, if described information of voltage is higher than described reference voltage, be target power with predetermined maximum heating power setting, generate described pwm signal with the PWM dutycycle corresponding with the described target power of setting, 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, the PWM dutycycle of then 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 section, and source terminal (S) is connected with described heater unit respectively, and wherein said N is 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 section, and emitter terminal (E) is connected with described heater unit respectively, and wherein said N is 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, altogether in,
Described Department of Communication Force is by a formation among RS-232, RS-422, USB (Universal Serial Bus), IEEE1394 and CAN (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 respectively or increases the described PWM dutycycle of described pwm signal.
8. automobile auxiliary electric heater unit as claimed in claim 1, wherein,
Described control part is optionally to the described pwm signal of one or more described switch element output.
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 heater method comprises the 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, will to be set as target power lower than the proportional heating power of the cell pressure of described reference voltage, if described information of voltage higher than described reference voltage, is target power with predetermined maximum heating power setting;
Generate pwm signal with the PWM dutycycle corresponding with the described target power of setting, and apply described pwm signal to switch portion; 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 heater method, wherein,
In the step of the PWM dutycycle of regulating described pwm signal, when the consumed power of described calculating greater than or during lower than described target power, reduce respectively or increase the PWM dutycycle of described pwm signal.
12. automobile as claimed in claim 10 auxiliary electrical heater method, wherein,
In the step that applies to switch portion,
Optionally apply the described pwm signal of described PWM dutycycle to one or more switch elements of described switch portion.
13. automobile as claimed in claim 10 auxiliary electrical heater method, 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 detection electric current and the cell pressure of current detecting part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070117541 | 2007-11-16 | ||
| KR1020070117541A KR100894008B1 (en) | 2007-11-16 | 2007-11-16 | Automobile auxiliary electric heating device and method |
| KR10-2007-0117541 | 2007-11-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101434184A CN101434184A (en) | 2009-05-20 |
| CN101434184B true CN101434184B (en) | 2013-05-15 |
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| 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) |
Families Citing this family (45)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2371589B1 (en) * | 2010-03-26 | 2012-09-05 | Eberspächer catem GmbH & Co. KG | Electric heating device |
| EP2371588B1 (en) * | 2010-03-26 | 2012-10-10 | 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 |
| 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 |
| 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 |
| JP5875279B2 (en) * | 2011-08-04 | 2016-03-02 | 三菱重工業株式会社 | HEATER CONTROL DEVICE AND METHOD, AND PROGRAM |
| US10500921B2 (en) * | 2011-08-16 | 2019-12-10 | Hanon Systems | Electric heater apparatus for electric vehicle and method of controlling same |
| 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 |
| 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 |
| 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 |
| FR3007229B1 (en) * | 2013-06-17 | 2015-06-19 | Valeo Systemes Thermiques | CONTROL OF AN ELECTRIC HEATING CIRCUIT, IN PARTICULAR FOR A MOTOR VEHICLE |
| JP2015084622A (en) | 2013-10-25 | 2015-04-30 | 三菱重工オートモーティブサーマルシステムズ株式会社 | Driving device and driving method for switching element; and vehicular air conditioner |
| KR101518924B1 (en) * | 2013-12-10 | 2015-05-11 | 현대자동차 주식회사 | Heater control system for environmental friendly vehicle and method thereof |
| 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 |
| DE102014221962A1 (en) * | 2014-10-28 | 2016-04-28 | Robert Bosch Gmbh | Method and device for heating a supply device 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 |
| DE102016009831A1 (en) | 2015-09-03 | 2017-03-09 | I.G. Bauerhin Gmbh | Method for heating surfaces in the interior of a vehicle |
| 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 |
| 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 |
| CN106347067B (en) * | 2016-07-29 | 2018-09-11 | 北京新能源汽车股份有限公司 | Electric automobile and control method and system for PTC electric heater of electric automobile |
| FR3061871B1 (en) * | 2017-01-18 | 2020-05-01 | Valeo Systemes Thermiques | ELECTRIC HEATING DEVICE FOR A MOTOR VEHICLE |
| 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. |
| 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. |
| 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. |
| CN110881225B (en) * | 2018-09-05 | 2022-04-22 | 杭州三花研究院有限公司 | Electric heater and control method thereof |
| FR3088121B1 (en) | 2018-11-06 | 2020-11-13 | Valeo Systemes Thermiques | OVERHEATING DETECTION PROCEDURE FOR A HEATING DEVICE AND RELATED CONTROL UNIT |
| FR3092462B1 (en) * | 2019-01-31 | 2021-01-15 | Continental Automotive Gmbh | Method of heating a tank |
| 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 |
| 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 |
| CN112721572B (en) * | 2021-02-08 | 2022-04-26 | 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 |
| CN112721638B (en) * | 2021-02-08 | 2022-03-08 | 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 |
| 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 |
| DE102022129536A1 (en) * | 2022-11-09 | 2024-05-16 | Bayerische Motoren Werke Aktiengesellschaft | Electric instantaneous water heater for a vehicle, in particular an electric vehicle, operating method for the instantaneous water heater and vehicle |
| DE102023105751A1 (en) * | 2023-03-08 | 2024-09-12 | Preh Gmbh | Electrical circuit design for a multi-zone heating operation with optional capacitive measuring operation for proximity detection, associated steering wheel and procedure |
| 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 |
| 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 |
| CN119325158A (en) * | 2024-12-18 | 2025-01-17 | 深圳艾为电气技术股份有限公司 | PTC heater power control method, device, equipment and medium |
Citations (2)
| 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 |
| CN1972815A (en) * | 2004-04-22 | 2007-05-30 | 韦巴斯托股份公司 | Heating and air-conditioning system for a motor vehicle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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
Patent Citations (2)
| 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 |
| CN1972815A (en) * | 2004-04-22 | 2007-05-30 | 韦巴斯托股份公司 | Heating and air-conditioning system for a motor vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100894008B1 (en) | 2009-04-17 |
| DE102008056757A1 (en) | 2009-06-18 |
| CN101434184A (en) | 2009-05-20 |
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