CN113650538B - Automatic heating and ventilation control method and system for vehicle seat - Google Patents
Automatic heating and ventilation control method and system for vehicle seat Download PDFInfo
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- CN113650538B CN113650538B CN202111001957.4A CN202111001957A CN113650538B CN 113650538 B CN113650538 B CN 113650538B CN 202111001957 A CN202111001957 A CN 202111001957A CN 113650538 B CN113650538 B CN 113650538B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5678—Heating or ventilating devices characterised by electrical systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5621—Heating or ventilating devices characterised by convection by air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Abstract
The invention provides a vehicle seat automatic heating and ventilation control method and a system, comprising the following steps: collecting state information of an ignition switch of a vehicle, state information of a seat heating switch, state information of a seat ventilation switch, state information of an occupancy sensor, state information of a safety belt lock catch switch, engine rotating speed information, vehicle speed information and cab environment temperature information through a vehicle body controller; the vehicle body controller controls the on-off state of the seat heating switch and the on-off state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information, and the cab ambient temperature information. The invention realizes automatic and accurate control of seat heating and ventilation during driving, greatly improves the comfort and convenience of seat control, simultaneously does not need to add an additional seat control module, reduces the types of components and reduces the system cost.
Description
Technical Field
The invention relates to the technical field of automobile electrical control, in particular to a method and a system for controlling automatic heating and ventilation of a vehicle seat.
Background
Along with the more and more attention paid to the comfort experience of automobile driving, people have higher and higher requirements on the comfort of automobile seats, and especially the requirements on seat heating and ventilation are increased day by day. Many drivers need to drive for a long time or rest on seats every day due to working properties, and the driving comfort of the drivers is easily reduced due to overhigh or overlow temperature in the driving cab. The traditional vehicle seat heating and ventilation mostly need manual operation, experience effect is poor, and it is easy to disperse driver's attention to operate and turn on heating or ventilation switch when driving moreover. In addition, although some high-end vehicle types are provided with the automatic seat control system, the automatic seat heating and ventilation control functions can be realized only by additionally adding a seat control module, and the system is high in cost and complex to maintain.
Disclosure of Invention
In order to solve the technical problems, the invention designs an automatic seat heating and ventilation control method, which utilizes the hardware resources of the existing vehicle body controller in the vehicle and realizes the automatic seat heating and ventilation functions in the driving process through a software control strategy, and simultaneously reduces the types of components and the system cost.
The invention designs an automatic heating and ventilation control method for a vehicle seat, which comprises the following steps:
collecting state information of an ignition switch of a vehicle, state information of a seat heating switch, state information of a seat ventilation switch, state information of an occupancy sensor, state information of a safety belt lock catch switch, engine rotating speed information, vehicle speed information and cab environment temperature information through a vehicle body controller; the vehicle body controller controls the on-off state of the seat heating switch and the on-off state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information, and the cab ambient temperature information.
In one embodiment, the vehicle body controller controls the on-off state of the seat heating switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information, and the cabin ambient temperature information, including:
acquiring the state information of the ignition switch, judging whether the ON gear of the ignition switch is switched ON, and if so, executing the next step;
judging whether a person is in the seat or not, if so, executing the next step;
acquiring the engine rotating speed information and the vehicle speed information, judging whether the engine rotating speed is greater than a preset engine rotating speed or not and whether the vehicle speed is greater than a preset vehicle speed or not, and executing the next step if yes;
acquiring the environment temperature information of the cab, judging whether the environment temperature of the cab is lower than a first preset temperature, if so, controlling the seat heating switch to trigger, and enabling the seat heater to heat the seat.
In one embodiment, the controlling the seat heating switch to be triggered further comprises, after the seat heater heats the seat: and judging whether the seat heating switch is triggered again, and if the seat heating switch is triggered again, stopping control.
In one embodiment, the vehicle body controller controls the on-off state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information, and the cabin ambient temperature information, including:
acquiring the state information of the ignition switch, judging whether the ON gear of the ignition switch is connected or not, and if so, executing the next step;
judging whether a person is on the seat, if so, executing the next step;
acquiring the engine rotating speed information and the vehicle speed information, judging whether the engine rotating speed is greater than a preset engine rotating speed and whether the vehicle speed is greater than a preset vehicle speed, and executing the next step if the engine rotating speed is greater than the preset engine rotating speed and the vehicle speed is greater than the preset vehicle speed;
and acquiring the environment temperature information of the cab, judging whether the environment temperature of the cab is greater than a second preset temperature, and if so, controlling the seat ventilation switch to trigger so that the seat ventilation fan ventilates.
In one embodiment, the controlling the seat ventilation switch to be activated so that the seat ventilation fan ventilates the seat further includes: and judging whether the seat ventilation switch is triggered again, and if the seat ventilation switch is triggered again, stopping control.
In one embodiment, the first preset temperature is 18 ℃; the second preset temperature is 25 ℃; the preset engine speed is 550r/min, and the preset speed is 3km/h.
In one embodiment, the determining whether the seat has a person includes:
judging whether a person is in the seat or not according to the occupancy sensor;
judging whether the safety belt lock switch is buckled or not;
and if the seat is judged to have a person according to the occupancy sensor and the safety belt lock catch switch is buckled, judging that the seat has a person.
In one embodiment, the engine speed information, the vehicle speed information and the cab ambient temperature information are collected through a CAN communication module.
In one embodiment, the cabin ambient temperature information is collected from an air conditioning system within the cabin.
Based on the vehicle seat automatic heating and ventilation control method, the invention also designs a vehicle seat automatic heating and ventilation control system, which comprises the following steps:
the switch acquisition module is used for acquiring the state information of an ignition switch, the state information of a seat heating switch, the state information of a seat ventilation switch, the state information of an occupancy sensor and the state information of a safety belt lock switch;
the communication module is used for acquiring engine rotating speed information, vehicle speed information and cab environment temperature information;
the processing module is connected with the switch acquisition module and the communication module and is used for controlling the on-off state of the seat heating switch and the on-off state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the safety belt lock switch, the engine rotating speed information, the vehicle speed information and the cab environment temperature information;
the switch acquisition module, the communication module and the processing module are all integrated in the vehicle body controller.
In one embodiment, the communication module includes a CAN communication module, and the communication module acquires the engine speed information, the vehicle speed information, and the cab ambient temperature information based on a CAN bus.
In one embodiment, the processing module comprises:
the processing unit is used for receiving state information of the ignition switch, state information of the occupancy sensor, state information of the safety belt lock switch, engine rotating speed information, vehicle speed information and cab environment temperature information;
and the driving and diagnosis unit is connected with the processing unit, the seat heater and the seat ventilation fan and is used for controlling the on-off state of the seat heating switch and the on-off state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the safety belt lock switch, the engine rotating speed information, the vehicle speed information and the cab environment temperature information.
In one embodiment, the driving and diagnosing unit is further configured to determine whether the seat heating switch is triggered again or the seat ventilation switch is triggered again after controlling the on-off state of the seat heating switch and the on-off state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information, and the cabin ambient temperature information, and if so, stop the control.
In one embodiment, the automatic heating and ventilation control system further comprises a power module connected to the switch acquisition module, the communication module and the processing module for supplying power to the switch acquisition module, the communication module and the processing module.
According to the automatic seat heating and ventilation control method and system, the state information of the ignition switch, the engine rotating speed information, the vehicle speed information and the ambient temperature of the cab are collected through the vehicle body controller in the vehicle, meanwhile, whether a person exists in the seat is judged through the state information of the occupancy sensor and the state information of the safety belt lock catch switch, the seat heating and ventilation switch is controlled to be triggered through comprehensive judgment of the information, automatic and accurate seat heating and ventilation control during driving is achieved, comfort and convenience of seat control are greatly improved, meanwhile, an additional seat control module does not need to be added, the types of parts are reduced, and the system cost is reduced.
Drawings
Fig. 1 is a flowchart of a vehicle seat automatic heating and ventilation control method according to an embodiment of the present invention.
Fig. 2 is a block diagram of a vehicle seat automatic heating and ventilation control system according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will recognize without departing from the spirit and scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention designs an automatic heating and ventilation control method for a vehicle seat, which comprises the following steps:
collecting state information of an ignition switch of a vehicle, state information of a seat heating switch, state information of a seat ventilation switch, state information of an occupancy sensor, state information of a safety belt lock switch, engine rotating speed information, vehicle speed information and cab environment temperature information through a vehicle body controller;
the vehicle body controller controls the on-off state of the seat heating switch and the on-off state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information, and the ambient temperature information of the cab.
FIG. 1 is a flow chart of a seat heating and ventilation control method in one embodiment. The on-off state that automobile body controller controlled seat heating switch based on ignition switch's state information, the state information of occupy-place sensor, the state information of safety belt hasp switch, engine speed information, speed of a motor vehicle information and driver's cabin ambient temperature information includes:
s1: acquiring state information of an ignition switch, judging whether an ON gear of the ignition switch is connected or not, and if so, executing the next step;
s2: judging whether a person is on the seat, if so, executing the next step;
s3: acquiring engine rotating speed information and vehicle speed information, judging whether the engine rotating speed is greater than a preset engine rotating speed and whether the vehicle speed is greater than a preset vehicle speed, and if so, executing the next step;
s4: the method comprises the steps of obtaining environment temperature information of a cab, judging whether the environment temperature of the cab is smaller than a first preset temperature or not, and controlling a seat heating switch to trigger if the environment temperature of the cab is smaller than the first preset temperature, so that a seat heater heats the seat.
In another embodiment, the vehicle body controller controls the switch state of the seat heating switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information, and the cabin ambient temperature information, including:
s1: acquiring state information of an ignition switch, judging whether an ON gear of the ignition switch is connected or not, and if so, executing the next step;
s2: acquiring engine rotating speed information and vehicle speed information, judging whether the engine rotating speed is greater than a preset engine rotating speed and whether the vehicle speed is greater than a preset vehicle speed, and executing the next step if the engine rotating speed is greater than the preset engine rotating speed and the vehicle speed is greater than the preset vehicle speed;
s3: judging whether a person is on the seat, if so, executing the next step;
s4: the method comprises the steps of obtaining environment temperature information of a cab, judging whether the environment temperature of the cab is smaller than a first preset temperature or not, and controlling a seat heating switch to trigger if the environment temperature of the cab is smaller than the first preset temperature, so that a seat heater heats the seat.
In another embodiment, the vehicle body controller controls the switch state of the seat heating switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information, and the cabin ambient temperature information, including:
s1: acquiring state information of an ignition switch, judging whether an ON gear of the ignition switch is connected or not, and if so, executing the next step;
s2: acquiring environmental temperature information of a cab, judging whether the environmental temperature of the cab is less than a first preset temperature, and executing the next step if the environmental temperature of the cab is less than the first preset temperature;
s3: judging whether a person is on the seat, if so, executing the next step;
s4: the method comprises the steps of obtaining engine rotating speed information and vehicle speed information, judging whether the engine rotating speed is greater than a preset engine rotating speed and whether the vehicle speed is greater than a preset vehicle speed, and if so, controlling a seat heating switch to trigger so that a seat heater heats the seat.
In another embodiment, the vehicle body controller controls the switch state of the seat heating switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information, and the cabin ambient temperature information, including:
s1: acquiring state information of an ignition switch, judging whether an ON gear of the ignition switch is connected or not, and if so, executing the next step;
s2: acquiring environmental temperature information of a cab, judging whether the environmental temperature of the cab is less than a first preset temperature, and executing the next step if the environmental temperature of the cab is less than the first preset temperature;
s3: acquiring engine rotating speed information and vehicle speed information, judging whether the engine rotating speed is greater than a preset engine rotating speed and whether the vehicle speed is greater than a preset vehicle speed, and if so, executing the next step;
s4: and judging whether a person exists on the seat, if so, controlling a seat heating switch to trigger so that the seat heater heats the seat.
In the above embodiments, the order of the logic determination processes S2 to S4 may be automatically changed according to actual situations, and is not limited to the above order.
Further, control seat heating switch and trigger for the seat heater still includes for seat after for seat heating: and judging whether the seat heating switch is triggered again, and stopping control if the seat heating switch is triggered again. For example, the driver no longer needs to heat according to personal conditions, and the heating switch can be manually triggered to stop the heating function.
As shown in fig. 1, if the ON position of the ignition switch is not turned ON as a result of the determination in step S1, step S1 is continuously executed until the ON position of the ignition switch is turned ON, or step S1 is repeatedly executed in a loop after a preset time interval until the ON position of the ignition switch is turned ON. In the step of judging whether the seat is occupied, if the seat is not occupied, the step is repeatedly executed until the seat is judged to be occupied. In the step of judging whether the engine speed is greater than the preset engine speed and the vehicle speed is greater than the preset vehicle speed, if the judgment result is that the engine speed is not greater than the preset engine speed, the vehicle speed is not greater than the preset vehicle speed or the engine speed is not greater than the preset engine speed and the vehicle speed is not greater than the preset vehicle speed, the step is repeatedly executed until the engine speed is determined to be greater than the preset engine speed and the vehicle speed is greater than the preset vehicle speed or the control is directly finished. In the step of judging whether the ambient temperature of the cab is less than the first preset temperature, if the judgment result is that the ambient temperature of the cab is not less than the first preset temperature, the step is repeatedly executed until the ambient temperature of the cab is judged to be less than the first preset temperature or the control is directly finished.
With continued reference to fig. 1, the vehicle body controller controls the on-off state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information, and the cabin ambient temperature information, including:
s1: acquiring state information of an ignition switch, judging whether an ON gear of the ignition switch is connected or not, and if so, executing the next step;
s2: judging whether a person is on the seat, if so, executing the next step;
s3: acquiring engine rotating speed information and vehicle speed information, judging whether the engine rotating speed is greater than a preset engine rotating speed and whether the vehicle speed is greater than a preset vehicle speed, and if so, executing the next step;
s4: and acquiring the environmental temperature information of the cab, judging whether the environmental temperature of the cab is greater than a second preset temperature, and if so, controlling a seat ventilation switch to trigger so that a seat ventilation fan ventilates for the seat.
In another embodiment, the vehicle body controller controls the switch state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information, and the cabin ambient temperature information, including:
s1: acquiring state information of an ignition switch, judging whether an ON gear of the ignition switch is connected or not, and if so, executing the next step;
s2: acquiring engine rotating speed information and vehicle speed information, judging whether the engine rotating speed is greater than a preset engine rotating speed and whether the vehicle speed is greater than a preset vehicle speed, and if so, executing the next step;
s3: judging whether a person is on the seat, if so, executing the next step;
s4: and acquiring the environmental temperature information of the cab, judging whether the environmental temperature of the cab is greater than a second preset temperature, and if so, controlling a seat ventilation switch to trigger so that a seat ventilation fan ventilates for the seat.
In another embodiment, the vehicle body controller controls the switch state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information, and the cabin ambient temperature information, including:
s1: acquiring state information of an ignition switch, judging whether an ON gear of the ignition switch is connected or not, and if so, executing the next step;
s2: acquiring the environmental temperature information of the cab, judging whether the environmental temperature of the cab is greater than a second preset temperature, and if so, executing the next step;
s3: judging whether a person is on the seat, if so, executing the next step;
s4: the method comprises the steps of obtaining engine rotating speed information and vehicle speed information, judging whether the engine rotating speed is greater than a preset engine rotating speed and whether the vehicle speed is greater than a preset vehicle speed, and if yes, controlling a seat ventilation switch to trigger so that a seat ventilation fan ventilates for a seat.
In another embodiment, the vehicle body controller controls the switch state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information, and the cabin ambient temperature information, including:
s1: acquiring state information of an ignition switch, judging whether an ON gear of the ignition switch is connected or not, and if so, executing the next step;
s2: acquiring the environmental temperature information of the cab, judging whether the environmental temperature of the cab is greater than a second preset temperature, and if so, executing the next step;
s3: acquiring engine rotating speed information and vehicle speed information, judging whether the engine rotating speed is greater than a preset engine rotating speed and whether the vehicle speed is greater than a preset vehicle speed, and if so, executing the next step;
s4: and judging whether a person exists on the seat, if so, controlling a seat ventilation switch to trigger so that the seat ventilation fan ventilates for the seat.
In the above embodiments, the order of the logic determination processes S2 to S4 may be automatically changed according to actual situations, and is not limited to the above order.
Further, control seat ventilation switch and trigger for seat ventilation fan still includes for the seat after ventilating: and judging whether the seat ventilation switch is triggered again, and stopping control if the seat ventilation switch is triggered again. For example, the driver may manually trigger the ventilation switch to stop the ventilation function if the ventilation is no longer required according to personal conditions.
As shown in fig. 1, if the ON position of the ignition switch is not turned ON as a result of the determination in step S1, step S1 is continuously executed until the ON position of the ignition switch is turned ON, or step S1 is repeatedly executed in a loop after a preset time interval until the ON position of the ignition switch is turned ON. In the step of judging whether the seat is occupied, if the seat is not occupied, the step is repeatedly executed until the seat is judged to be occupied. In the step of judging whether the engine speed is greater than the preset engine speed and the vehicle speed is greater than the preset vehicle speed, if the judgment result is that the engine speed is not greater than the preset engine speed, the vehicle speed is not greater than the preset vehicle speed or the engine speed is not greater than the preset engine speed and the vehicle speed is not greater than the preset vehicle speed, the step is repeatedly executed until the engine speed is determined to be greater than the preset engine speed and the vehicle speed is greater than the preset vehicle speed or the control is directly finished. In the step of judging whether the ambient temperature of the cab is greater than the second preset temperature, if the judgment result is that the ambient temperature of the cab is not greater than the second preset temperature, the step is repeatedly executed until the ambient temperature of the cab is judged to be greater than the second preset temperature or the control is directly finished.
Specifically, the first preset temperature may be, but is not limited to, 18 ℃; the second preset temperature may be, but is not limited to, 25 ℃; the preset engine speed may be, but is not limited to, 550r/min, and the preset vehicle speed may be, but is not limited to, 3km/h.
Continuing to refer to fig. 1, in one embodiment, determining whether a seat is occupied includes:
judging whether a person is on the seat or not according to the occupancy sensor;
judging whether the safety belt lock catch switch is buckled or not;
if the seat is judged to have a person according to the occupancy sensor and the safety belt lock catch switch is buckled, the seat is judged to have a person.
In one embodiment, engine speed information, vehicle speed information, and cab ambient temperature information are collected via a CAN communication module.
Further, cab ambient temperature information is collected from an air conditioning system within the cab.
Based on the vehicle seat automatic heating and ventilation control method, the invention also designs a vehicle seat automatic heating and ventilation control system. As shown in fig. 2, in one embodiment, the automatic heating and ventilation control system includes a switch acquisition module, a communication module, and a processing module. The switch acquisition module, the communication module and the processing module are all integrated in the vehicle body controller.
Specifically, the switch acquisition module is used for acquiring state information of an ignition switch, state information of a seat heating switch, state information of a seat ventilation switch, state information of an occupancy sensor and state information of a safety belt lock switch.
Specifically, the communication module is used for acquiring engine speed information, vehicle speed information and cab environment temperature information.
Specifically, the processing module is connected with the switch acquisition module and the communication module and used for controlling the on-off state of the seat heating switch and the on-off state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the safety belt lock catch switch, the engine rotating speed information, the vehicle speed information and the ambient temperature information of the cab.
In one embodiment, the communication module comprises a CAN communication module, and the communication module acquires engine speed information, vehicle speed information and cab environment temperature information based on a CAN bus.
With continued reference to FIG. 2, in one embodiment, the processing module includes a processing unit and a drive and diagnostic unit.
The processing unit is used for receiving state information of an ignition switch, state information of an occupancy sensor, state information of a safety belt lock switch, engine rotating speed information, vehicle speed information and cab environment temperature information.
The driving and diagnosing unit is connected with the processing unit, the seat heater and the seat ventilation fan and is used for controlling the on-off state of the seat heating switch and the on-off state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the safety belt lock catch switch, the engine rotating speed information, the vehicle speed information and the environmental temperature information of the cab.
Further, the driving and diagnosing unit is further used for judging whether the seat heating switch is triggered again or not or whether the seat ventilation switch is triggered again after controlling the on-off state of the seat heating switch and the on-off state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information and the cab ambient temperature information, and if so, stopping the control. For example, the driver may not need heating or ventilation according to personal conditions, and the heating or ventilation switch may be manually triggered to stop the heating or ventilation function.
In one embodiment, the automatic heating and ventilation control system further comprises a power module connected with the switch acquisition module, the communication module and the processing module for supplying power to the switch acquisition module, the communication module and the processing module.
According to the automatic seat heating and ventilation control method and system, the state information of the ignition switch, the engine rotating speed information, the vehicle speed information and the ambient temperature of the cab are collected through the vehicle body controller in the vehicle, meanwhile, whether a seat is occupied or not is judged through the state information of the occupancy sensor and the state information of the safety belt lock catch switch, the seat heating and ventilation switch is controlled to be triggered through comprehensive judgment of the information, automatic and accurate seat heating and ventilation control during driving is achieved, comfort and convenience of seat control are greatly improved, meanwhile, an additional seat control module does not need to be added, the types of components are reduced, and system cost is reduced. In most cases, the system can also remind the driver and passengers of fastening the safety belts.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (13)
1. A vehicle seat auto-heat and ventilation control method, the method comprising:
collecting state information of an ignition switch of a vehicle, state information of a seat heating switch, state information of a seat ventilation switch, state information of an occupancy sensor, state information of a safety belt lock catch switch, engine rotating speed information, vehicle speed information and cab environment temperature information through a vehicle body controller;
acquiring the state information of the ignition switch, and judging whether the ON gear of the ignition switch is switched ON or not;
if the ON gear of the ignition switch is switched ON, executing a step of judging whether a person exists ON the seat;
if the seat is occupied, the steps of obtaining the engine rotating speed information and the vehicle speed information, and judging whether the engine rotating speed is greater than a preset engine rotating speed and whether the vehicle speed is greater than a preset vehicle speed are executed;
if the engine rotating speed is greater than the preset engine rotating speed and the vehicle speed is greater than the preset vehicle speed, the step of obtaining the environment temperature information of the cab and judging whether the environment temperature of the cab is less than a first preset temperature is executed;
if the ambient temperature of the cab is lower than a first preset temperature, controlling the seat heating switch to trigger so that the seat heater heats the seat;
if the ON gear of the ignition switch is not switched ON, continuously executing the step of judging whether the ON gear of the ignition switch is switched ON or not until the ON gear of the ignition switch is switched ON; or, after a preset time interval, the step of judging whether the ON gear of the ignition switch is switched ON is circularly and repeatedly executed until the ON gear of the ignition switch is switched ON;
if the seat does not have a person, repeatedly executing the step of judging whether the seat has a person or not until the seat is judged to have a person;
if the engine speed is not greater than the preset engine speed and the vehicle speed is not greater than the preset vehicle speed, the step of judging whether the engine speed is greater than the preset engine speed and whether the vehicle speed is greater than the preset vehicle speed is repeatedly executed until the engine speed is greater than the preset engine speed and the vehicle speed is greater than the preset vehicle speed or the control is directly finished.
2. The vehicle seat automatic heating and ventilation control method according to claim 1, wherein the controlling the seat heating switch to be activated so that the seat heater heats the seat further comprises: and judging whether the seat heating switch is triggered again, and if the seat heating switch is triggered again, stopping control.
3. The vehicle seat overheating and ventilation control method according to claim 1, wherein the vehicle body controller controls the switch state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information, and the cabin ambient temperature information, including:
acquiring the state information of the ignition switch, judging whether the ON gear of the ignition switch is switched ON, and if so, executing the next step;
judging whether a person is on the seat, if so, executing the next step;
acquiring the engine rotating speed information and the vehicle speed information, judging whether the engine rotating speed is greater than a preset engine rotating speed or not and whether the vehicle speed is greater than a preset vehicle speed or not, and executing the next step if yes;
and acquiring the environment temperature information of the cab, judging whether the environment temperature of the cab is greater than a second preset temperature, and if so, controlling the seat ventilation switch to trigger so that the seat ventilation fan ventilates the seat.
4. The vehicle seat automatic heating and ventilation control method according to claim 3, wherein the controlling the seat ventilation switch to be activated so that a seat ventilation fan ventilates the seat further comprises: and judging whether the seat ventilation switch is triggered again, and if the seat ventilation switch is triggered again, stopping control.
5. The vehicle seat auto-heat and ventilation control method of claim 3, wherein the first preset temperature is 18 ℃; the second preset temperature is 25 ℃; the preset engine speed is 550r/min, and the preset vehicle speed is 3km/h.
6. The vehicle seat automatic heating and ventilation control method according to any one of claims 1 to 5, wherein the determining whether or not a person is present in the seat includes:
judging whether a person is on the seat or not according to the occupancy sensor;
judging whether the safety belt lock switch is buckled or not;
and if the seat is judged to have a person according to the occupancy sensor and the safety belt lock catch switch is buckled, judging that the seat has a person.
7. The vehicle seat automatic heating and ventilation control method according to any one of claims 1 to 5, characterized in that the engine speed information, the vehicle speed information, and the cabin ambient temperature information are collected by a CAN communication module.
8. The vehicle seat automatic heating and ventilation control method according to any one of claims 1 to 5, characterized in that the cabin ambient temperature information is collected from an air conditioning system in the cabin.
9. A vehicle seat self-heating and ventilation control system, comprising:
the switch acquisition module is used for acquiring state information of an ignition switch, state information of a seat heating switch, state information of a seat ventilation switch, state information of an occupancy sensor and state information of a safety belt lock catch switch;
the communication module is used for acquiring engine rotating speed information, vehicle speed information and cab environment temperature information;
the processing module is connected with the switch acquisition module and the communication module and is used for acquiring the state information of the ignition switch and judging whether the ON gear of the ignition switch is switched ON or not; when the ON gear of the ignition switch is switched ON, the step of judging whether a person is ON the seat is executed; when people are in the seat, the steps of obtaining the engine rotating speed information and the vehicle speed information, and judging whether the engine rotating speed is greater than a preset engine rotating speed and whether the vehicle speed is greater than a preset vehicle speed are executed; when the engine rotating speed is greater than a preset engine rotating speed and the vehicle speed is greater than a preset vehicle speed, the step of acquiring the environment temperature information of the cab and judging whether the environment temperature of the cab is less than a first preset temperature is executed; when the ambient temperature of the cab is lower than a first preset temperature, controlling the seat heating switch to trigger so that the seat heater heats the seat; continuously judging whether the ON gear of the ignition switch is switched ON or not when the ON gear of the ignition switch is not switched ON, until the ON gear of the ignition switch is switched ON, or circularly and repeatedly executing the step of judging whether the ON gear of the ignition switch is switched ON or not after a preset time interval until the ON gear of the ignition switch is switched ON; when no person is in the seat, the step of judging whether the seat is occupied or not is repeatedly executed until the seat is judged to be occupied; when the engine rotating speed is not greater than the preset engine rotating speed and the vehicle speed is not greater than the preset vehicle speed, repeatedly executing the step of judging whether the engine rotating speed is greater than the preset engine rotating speed and whether the vehicle speed is greater than the preset vehicle speed until the engine rotating speed is greater than the preset engine rotating speed and the vehicle speed is greater than the preset vehicle speed or directly finishing control;
the switch acquisition module, the communication module and the processing module are all integrated in the vehicle body controller.
10. The automatic heating and ventilation control system of claim 9, wherein the communication module comprises a CAN communication module that obtains the engine speed information, the vehicle speed information, and the cab ambient temperature information based on a CAN bus.
11. The automatic heating and ventilation control system of claim 9, wherein the processing module comprises:
the processing unit is used for receiving state information of the ignition switch, state information of the occupancy sensor, state information of the safety belt lock switch, engine rotating speed information, vehicle speed information and cab environment temperature information;
and the driving and diagnosing unit is connected with the processing unit, the seat heater and the seat ventilation fan and is used for controlling the on-off state of the seat heating switch and the on-off state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the safety belt lock switch, the engine rotating speed information, the vehicle speed information and the cab environment temperature information.
12. The automatic heating and ventilation control system according to claim 11, wherein the drive and diagnostic unit is further configured to determine whether the seat heating switch is triggered again or the seat ventilation switch is triggered again after controlling the on-off state of the seat heating switch and the on-off state of the seat ventilation switch based on the state information of the ignition switch, the state information of the occupancy sensor, the state information of the seatbelt buckle switch, the engine speed information, the vehicle speed information, and the cabin ambient temperature information, and if so, stop the control.
13. The automatic heating and ventilation control system of claim 9, further comprising a power module connected to the switch acquisition module, the communication module, and the processing module for powering the switch acquisition module, the communication module, and the processing module.
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| CN114987303A (en) * | 2022-05-31 | 2022-09-02 | 一汽奔腾轿车有限公司 | Intelligent seat ventilation control system and method |
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