CN105365625A - Seat heating and ventilating device and control method - Google Patents
Seat heating and ventilating device and control method Download PDFInfo
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- CN105365625A CN105365625A CN201510858801.6A CN201510858801A CN105365625A CN 105365625 A CN105365625 A CN 105365625A CN 201510858801 A CN201510858801 A CN 201510858801A CN 105365625 A CN105365625 A CN 105365625A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 125
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000009423 ventilation Methods 0.000 claims description 60
- 238000011161 development Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Chair Legs, Seat Parts, And Backrests (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
A seat heating and ventilating device and a control method relate to the field of vehicle heating or ventilating devices. A seat heating and ventilating control circuit of the device controls seat heating and ventilating or only controls seat heating or only controls seat ventilating according to a request. As the seat heating and ventilating control circuit can output two PWM signals, any combination of heating and ventilating can be realized, the seat heating and ventilating control circuit can satisfy the control demands of different configuration models for seat heating and ventilating, and the development of controllers and even finished vehicles is reduced greatly. Meanwhile, the seat heating and ventilating device is reasonable in design, small and light, the device can be arranged according to different models and different configuration requirements of vehicle OEMs, and the development cost of OEMs is greatly reduced.
Description
Technical field
The present invention relates to heating or the drafting apparatus of vehicle, particularly a kind of seat heating drafting apparatus and control method.
Background technology
In recent years, along with the fast development of China's auto trade, demand and the recoverable amount of automobile increase year by year, the walking-replacing tool that automobile will be no longer people.In this context, people for the requirement of car comfort, also when the river rises the boat goes up.Seat heating and ventilation function appear on each rank manned vehicle more and more.It is no longer the exclusive outfit of luxury automobile, and present increasing B level car even A level car has been equipped with seat heating even ventilation function all.
The mode of current seat heating and ventilation mainly contains 2 kinds: one is " resistance wire type ", this kind of type of heating does not have module controls, seat is heated by resistive heater, heating function is turned off by the physical deformation of special material, namely, when heating materials is to uniform temperature, deformation can be produced, thus disconnection heater circuit, the maximum shortcoming of this kind of type of heating is: the simple mode stopping heating by heating material physical deformation effectively can not ensure the stability that heats and safety, has the danger of presence of fire; Another kind is " module controls ", and general seat modular only reads in heating or draft switch order simply by rigid line, controls heating cushion and ventilation motor realizes seat heating and ventilation function by the driving chip of inside modules.Do not possess Coding, LIN, CAN network communication function, Sofe Switch input cannot be read in, participate in car load network management.
Summary of the invention
For prior art Problems existing, the present invention proposes a kind of seat heating drafting apparatus and control method, and it is reasonable in design, be convenient to install and operation.
The technical solution adopted in the present invention is: a kind of seat heating drafting apparatus, and its technical essential is:
Bus module: for receiving the user's heating ventilation request from non-rigid line switch input;
Hardwire interface module: for receiving the user's heating ventilation request from rigid line heater switch and draft switch;
Seat heating and Ventilation Control circuit: for controlling heating and the ventilation of seat or only controlling the heating of seat or only control the ventilation of seat;
Thermal protection circuit: for feeding back the temperature signal of seat, when resistance temperature reaches setting threshold in circuit, transmits alerting signal to the heater circuit of seat, makes the heater circuit of seat stop heating.
Described bus module comprises: LIN bus module and CAN module.
Described seat heating and Ventilation Control circuit comprise:
Heater circuit: for heating for any one in front-seat driver's chair, secondary driver's chair, the left-side seat of rear row and the right-side seat of rear row or any two;
Ventilating circuit: for ventilating for any one in front-seat driver's chair, secondary driver's chair, the left-side seat of rear row and the right-side seat of rear row or two.
Heater circuit utilizes the duty cycle adjustment heating levels of PWM.
Ventilating circuit utilizes the duty cycle adjustment ventilation grade of PWM.
Heater circuit be in front-seat driver's chair, secondary driver's chair, the left-side seat of rear row and the right-side seat of rear row any two heat time, ventilating circuit does not work; Ventilating circuit be in front-seat driver's chair, secondary driver's chair, the left-side seat of rear row and the right-side seat of rear row any two ventilate time, heater circuit does not work; When heater circuit and ventilating circuit can simultaneously for the driver's chair at front row, secondary driver's chair, after any one in the left-side seat of row and the right-side seat of rear row not only provide heating but also provide the service of ventilation.
A kind of seat heating method of ventilation, adopt above-mentioned seat heating drafting apparatus to realize, its technical essential is: comprising:
Receive the heating from user and request of ventilating; According to heating and the ventilation of user's Request Control seat or only control the heating of seat or only control the ventilation of seat.
Utilize duty cycle adjustment heating and the ventilation grade of PWM.
The heating of seat is referred to the computer heating control of cushion to seat and backrest; The ventilation of seat is referred to the Ventilation Control of cushion to seat and backrest.
Advantage of the present invention and beneficial effect are: this seat heating drafting apparatus and control method, this device by CAN/LIN bus module, hardwire interface module receive from user heating and ventilate request, no matter the switch arrangement of seat heating drafting apparatus is at which, and (as: position such as air-conditioner controller, multimedia large-size screen monitors, seat body, rear row's air-conditioner air outlet, car door) seat heating and Ventilation Control circuit all can read in and realize controlling.Seat heating and Ventilation Control circuit control heating and the ventilation of seat according to this request or only control the heating of seat or only control the ventilation of seat, because seat heating and Ventilation Control circuit possess 2 road pwm signal output functions, the combination in any of Heating And Ventilating can be realized again, make seat heating and Ventilation Control circuit can meet the demand for control of different configuration vehicle for seat heating and ventilation, greatly reduce controller and even automobile research cost.Simultaneously, seat heating drafting apparatus is reasonable in design, its volume is little, lightweight, can also arrange according to car load factory different automobile types, different configuration needs, while greatly reducing car load factory cost of development, reliably effectively realize the demand for control to seat heating and ventilation, be with a wide range of applications in the automobile development in future.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, also can obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the present invention's secondary driver's chair heating ventilation control circuit functional block diagram;
Fig. 2 is the diagram of circuit of seat heating aeration control method of the present invention;
Fig. 3 is the present invention's secondary driver's chair heating ventilation control circuit schematic diagram;
Fig. 4 is back seat heating ventilation control circuit schematic diagram of the present invention;
Fig. 5 is front-row seats heating control circuit schematic diagram of the present invention.
Detailed description of the invention
Enable above-mentioned purpose of the present invention, feature and advantage become apparent more, below in conjunction with accompanying drawing 1 ~ 5 and detailed description of the invention, the present invention is further detailed explanation.
Embodiment 1:
Seat heating drafting apparatus in the present embodiment, be arranged on secondary driver's chair, be used for carrying out heating and ventilating to the cushion of secondary driver's chair and backrest, the two path control signal seat heating of seat heating drafting apparatus and Ventilation Control circuit exported is respectively on the cushion of auxiliary connection driver's chair and backrest, (general CAN or LIN bus module are all applicable to receive the user's heating from the non-rigid line switch input such as multimedia screen or air-conditioner controller the control signal that this device adopts CAN mode to receive user to send, ventilate and ask), as shown in Figure 1 with shown in Fig. 2.
First user utilizes CAN to send heating and ventilation request signal, e.g., the cushion of secondary driver's chair and backrest is carried out heating and ventilating.This request signal can be passed to car body controller by CAN, and (car body controller is as the gateway of this example, seat modular is sent to) for CAN signal being changed into LIN signal, and forward into LIN signal to seat heating and Ventilation Control circuit by car body controller, one tunnel output of seat heating and Ventilation Control circuit is heated cushion and ventilates, and the output of another road is heated back of seat and ventilates.Heating in the present embodiment and the grade of ventilation adjustable, heater circuit utilizes the PWM output port of HSD to regulate duty cycle adjustment heating levels, and ventilating circuit utilizes the PWM output port of HSD to regulate duty cycle adjustment ventilation grade.
, such as, grade is set to 3 grades, then the duty ripple defining PWM corresponding to each grade is:
Light air or heat: PWM dutycycle is set to 50%
Light breeze or heat: PWM dutycycle is set to 70%
Gentle breeze or heat: PWM dutycycle is set to 90%
Note: dutycycle above just provides example, concrete dutycycle also needs to be regulated voluntarily by controller according to the concrete voltage condition of present battery.Principle is: voltage gets over the end, and dutycycle is higher, and dutycycle is higher, and firing rate is faster.
LIN bus module in the present embodiment adopts LIN bus transceiver to realize, and LIN bus module can select NXPTJA1020.CAN module can select NXPTJA1040.Heating ventilation control circuit comprises that high-side driver chip HSD can select STVNH7070AS, low side driving chip LSD can select InfineonTLE7240.
Note: above model is just enumerated, the ardware model number in specific items also needs to select according to project reality.
Thermal protection circuit in the present embodiment; NTC resistance is adopted to realize; one road NTC resistance is for feeding back the temperature of cushion; one road NTC resistance is for feeding back the temperature of backrest; once temperature exceedes the threshold value of the heater circuit setting of seat; by feedback alarm signal to the heater circuit of seat, stopped seat heating by the heater circuit of seat, ensure vehicle safety.
The seat heating method of ventilation that the present embodiment adopts, adopts above-mentioned seat heating drafting apparatus to realize, comprising:
Step 101: receive the heating from user and request of ventilating;
Step 102: according to heating and the ventilation of user's Request Control seat or only control the heating of seat or only control the ventilation of seat.The present embodiment utilizes duty cycle adjustment heating and the ventilation grade of PWM.The heating of seat is referred to the computer heating control of cushion to seat and backrest; The ventilation of seat is referred to the Ventilation Control of cushion to seat and backrest.
Embodiment 2:
The difference of the present embodiment and embodiment 1 is: the seat heating drafting apparatus in the present embodiment, is arranged on back seat, is used for heating to the cushion of back seat and backrest.The two path control signal that the heater circuit of seat in seat heating drafting apparatus exports is connected respectively on the left side cushion of back seat and backrest, on the cushion of right side back seat and backrest, the control signal that this device adopts switch to answer line mode to receive user to send.
Its working process is: first user utilizes switch rigid line to send heat request signal, e.g., makes the cushion of player No.5 side seat and backrest heating, the cushion making back right side seat and backrest heating.One tunnel output of seat heating circuit is heated the cushion of left side back seat and backrest, and the output of another road is heated the cushion of rear side back seat and backrest.
Embodiment 3:
The difference of the present embodiment and embodiment 1 is: the seat heating drafting apparatus in the present embodiment, is arranged on front-row seats, is used for carrying out heating, heating to the cushion of secondary driver's chair and backrest to the cushion of the driver's chair of front-row seats and backrest.On the two path control signal cushion that connects driver's chair respectively that the heater circuit of the seat of seat heating drafting apparatus is exported and backrest, on the cushion of secondary driver's chair and backrest, the control signal that this device adopts LIN bus mode to receive user to send.
Its working process is: first user utilizes CAN to send heat request signal, e.g., makes the cushion of driver's chair and backrest heating, the cushion of secondary driver's chair and backrest heating.This request signal can be passed to car body controller by CAN, (car body controller is as the gateway of the present embodiment, seat modular is sent to for CAN signal being changed into LIN signal) and forward into LIN signal transmission to seat heating and Ventilation Control circuit by car body controller, one tunnel output of seat heating circuit is heated the cushion of driver's chair and backrest, and the output of another road is heated the cushion of secondary driver's chair and backrest.
Although the foregoing describe the specific embodiment of the present invention, the those skilled in the art in this area should be appreciated that these are only casehistorys, can make various changes or modifications, and do not deviate from principle of the present invention and essence to these embodiments.Scope of the present invention is only defined by the appended claims.
Claims (9)
1. a seat heating drafting apparatus, is characterized in that:
Bus module: for receiving the heating ventilation request of the user from non-rigid line switch input;
Hardwire interface module: for receiving the user's heating ventilation request from heater switch, draft switch;
Seat heating and Ventilation Control circuit: for controlling heating and the ventilation of seat or only controlling the heating of seat or only control the ventilation of seat;
Thermal protection circuit: for feeding back the temperature signal of seat, when resistance temperature reaches setting threshold in circuit, transmits alerting signal to the heater circuit of seat, stops heating function by the heater circuit of seat.
2. seat heating drafting apparatus as claimed in claim 1, is characterized in that: described bus module LIN bus module and CAN module.
3. seat heating drafting apparatus as claimed in claim 1, is characterized in that: described seat heating and Ventilation Control circuit comprise:
Heater circuit: for heating for any one in front-seat driver's chair, secondary driver's chair, the left-side seat of rear row and the right-side seat of rear row or any two;
Ventilating circuit: for ventilating for any one in front-seat driver's chair, secondary driver's chair, the left-side seat of rear row and the right-side seat of rear row or two.
4. seat heating drafting apparatus as claimed in claim 3, is characterized in that: heater circuit utilizes the duty cycle adjustment heating levels of PWM.
5. seat heating drafting apparatus as claimed in claim 4, is characterized in that: ventilating circuit utilizes the duty cycle adjustment ventilation grade of PWM.
6. seat heating drafting apparatus as claimed in claim 4, is characterized in that: heater circuit be in front-seat driver's chair, secondary driver's chair, the left-side seat of rear row and the right-side seat of rear row any two heat time, ventilating circuit does not work; Ventilating circuit be in front-seat driver's chair, secondary driver's chair, the left-side seat of rear row and the right-side seat of rear row any two ventilate time, heater circuit does not work; When heater circuit and ventilating circuit can simultaneously for the driver's chair at front row, secondary driver's chair, after any one in the left-side seat of row and the right-side seat of rear row not only provide heating but also provide the service of ventilation.
7. a seat heating method of ventilation, adopts seat heating drafting apparatus described in claim 1 to realize, it is characterized in that: comprising: receive the heating from user and request of ventilating; According to heating and the ventilation of user's Request Control seat or only control the heating of seat or only control the ventilation of seat.
8. seat heating method of ventilation as claimed in claim 7, is characterized in that: the duty cycle adjustment heating and the ventilation grade that utilize PWM.
9. seat heating method of ventilation as claimed in claim 7, is characterized in that: the computer heating control heating of seat being referred to cushion to seat and backrest; The ventilation of seat is referred to the Ventilation Control of cushion to seat and backrest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510858801.6A CN105365625A (en) | 2015-12-01 | 2015-12-01 | Seat heating and ventilating device and control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510858801.6A CN105365625A (en) | 2015-12-01 | 2015-12-01 | Seat heating and ventilating device and control method |
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| CN105365625A true CN105365625A (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510858801.6A Pending CN105365625A (en) | 2015-12-01 | 2015-12-01 | Seat heating and ventilating device and control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107380028A (en) * | 2017-07-28 | 2017-11-24 | 安徽江淮汽车集团股份有限公司 | A kind of control method and system of car seat heating ventilation limping pattern |
| CN107415776A (en) * | 2017-07-06 | 2017-12-01 | 长春富维安道拓汽车饰件系统有限公司 | Seat adjustment control device based on CAN network |
| CN108215957A (en) * | 2016-12-22 | 2018-06-29 | 通用汽车环球科技运作有限责任公司 | The system and method for being distributed to heat and cool down seat based on occupant's pressure |
| CN109415004A (en) * | 2016-06-30 | 2019-03-01 | 大众汽车有限公司 | Method and apparatus for controlling the air conditioning of vehicle seat |
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| CN103129432A (en) * | 2011-11-24 | 2013-06-05 | 丰田纺织株式会社 | Blowing control apparatus for seat and vehicle seat provided therewith |
| CN103786612A (en) * | 2014-02-12 | 2014-05-14 | 浙江吉利控股集团有限公司 | Heating and ventilation automatic control system and method of automobile seat |
| CN203705989U (en) * | 2014-02-14 | 2014-07-09 | 惠州市唐群电子有限公司 | Automobile seat temperature control circuit |
| US20140197155A1 (en) * | 2013-01-15 | 2014-07-17 | Toyota Boshoku Kabushiki Kaisha | Heater control apparatus |
| CN104816657A (en) * | 2015-05-14 | 2015-08-05 | 安徽江淮汽车股份有限公司 | Control method for heating and ventilation of seats |
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Patent Citations (6)
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| CN101492025A (en) * | 2008-01-24 | 2009-07-29 | 凯特姆两合公司 | Electric additional heating for a motor vehicle |
| CN103129432A (en) * | 2011-11-24 | 2013-06-05 | 丰田纺织株式会社 | Blowing control apparatus for seat and vehicle seat provided therewith |
| US20140197155A1 (en) * | 2013-01-15 | 2014-07-17 | Toyota Boshoku Kabushiki Kaisha | Heater control apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109415004A (en) * | 2016-06-30 | 2019-03-01 | 大众汽车有限公司 | Method and apparatus for controlling the air conditioning of vehicle seat |
| CN109415004B (en) * | 2016-06-30 | 2021-03-12 | 大众汽车有限公司 | Method and apparatus for controlling air conditioning of a vehicle seat |
| CN108215957A (en) * | 2016-12-22 | 2018-06-29 | 通用汽车环球科技运作有限责任公司 | The system and method for being distributed to heat and cool down seat based on occupant's pressure |
| CN107415776A (en) * | 2017-07-06 | 2017-12-01 | 长春富维安道拓汽车饰件系统有限公司 | Seat adjustment control device based on CAN network |
| CN107380028A (en) * | 2017-07-28 | 2017-11-24 | 安徽江淮汽车集团股份有限公司 | A kind of control method and system of car seat heating ventilation limping pattern |
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Application publication date: 20160302 |
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