JPH04133908U - Vehicle air conditioner adjustment device - Google Patents

Abstract

(57) [Summary] [Purpose] Adjust the air conditioner so that the set temperature in the vehicle interior matches the actual feeling of the driver. [Structure] The transmitter 2 and receiver 3 of the skin blood flow sensor are placed near the surface of the steering wheel 1, and the detection circuit outputs a signal to the control circuit according to the output, and the vehicle air conditioner is adjusted based on this. Correct temperature.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a system for regulating a vehicle air conditioner.

0002

[Conventional technology]

In the conventional air conditioner adjustment system in vehicles, the electronic controller is connected to the outside temperature sensor. , vehicle interior temperature sensor, engine coolant temperature sensor, air conditioner outlet temperature sensor, etc. After receiving a signal from Outside air switching motor, ventilation fan, outlet switching motor, refrigerant compressor Adjust the temperature inside the vehicle by driving or stopping the fan, condenser fan, etc. as appropriate. However, in each case, the constant value specified in advance by the switch operation is It adjusts the interior of the vehicle according to the conditions, and corresponds to individual differences between drivers and the conditions at the time. It was difficult to adjust the temperature inside the car.

0003

[Problem that the idea aims to solve]

Therefore, practical air conditioning adjustment that immediately responds to individual differences between drivers and driving conditions at the time. It was hoped that a device would emerge.

0004

[Means to solve the problem]

In order to achieve this objective, the vehicle air conditioner adjustment device according to the present invention A skin blood flow sensor that measures the driver's skin blood flow by placing it on the surface of the steering wheel, etc. , a detection circuit that detects whether the air conditioner adjustment temperature is appropriate according to the output of the same skin blood flow sensor. A control circuit that corrects the air conditioner adjustment temperature based on the road and the output signal of the detection circuit. have.

[0005]

[Effect]

A driver's skin blood flow is determined by how hot or cold he or she is feeling at the time. Since it accurately represents the degree of blood flow, it can be detected according to the output of the skin blood flow sensor that measures this. The knowledge circuit can accurately detect whether the air conditioner adjustment temperature is appropriate, and therefore the control circuit can The road can quickly adjust the air conditioner adjustment temperature to match the driver's senses. Wear.

[0006]

【Example】

Next, an embodiment of the present invention shown in the drawings will be described. In FIG. 1, the position of the steering wheel 1 that is normally held by a car driver is For example, the transmitter 2 and receiver of the skin blood flow sensor are placed on the surface near the 10:10 position. device 3 is installed, and the driver's finger 4 approaches or touches the transmitter 2 and receiver 3. Then, the laser emitted from the transmitter 2 hits the driver's finger 4, but it damages the blood vessels on the surface of the finger 4. The amount of laser reflection changes depending on the amount of hemoglobin in the flowing blood. The receiver 3 that captures the amount of radiation can measure the amount of skin blood flow in the finger 4.

[0007] By the way, as shown in the human body temperature regulation diagram in Figure 2, the sensible temperature of humans is When the surrounding environment raises the upper critical temperature A, humans begin to sweat, and the temperature further increases. When the temperature rises and reaches around B, the surface of the body gets burnt and goes beyond the range of temperature sensation. , begin to feel pain. In addition, when the human sensible temperature drops to the lower critical temperature C, the human body produces energy within its own muscles. When the temperature starts to heat up and further drops to around temperature D, the surface of the body will develop frostbite. After all, it goes beyond the sense of temperature and begins to feel pain. Between the upper critical temperature A and the lower critical temperature C, the closer the temperature is to A, the stronger the human blood vessels are. Human blood vessels expand and blood flow increases, and as the temperature approaches C, human blood vessels contract and blood flow decreases. Do a little.

[0008] Therefore, between the upper critical temperature A and the lower critical temperature C, the receiver of the skin blood flow sensor 3 measures skin blood flow from the amount of hemoglobin in the blood flowing through the driver's blood vessels. This makes it possible to accurately grasp the driver's own sensible temperature. As shown in FIG. 3, the electrical signal output by the receiver 3 of the skin blood flow sensor is converted into an AD signal. The electronic detection circuit 6 is led to the electronic detection circuit 6 through the air conditioner adjustment circuit 7. In other words, as shown by the solid line in Figure 4, the skin blood It is determined whether the sensible temperature ascertained from the flow rate is between EF and the sensible temperature is between EF. The electronic detection circuit 6 does not output a signal to the control circuit 8 when the temperature is between E. When the height is higher than that, a signal is output accordingly, and the above vehicle The control circuit 8 outputs a correction signal to lower the indoor temperature setting to the air conditioner adjustment circuit 7, Reduce the set temperature inside the vehicle by an appropriate amount, and conversely, if the sensible temperature is lower than F, adjust accordingly. As shown by the dashed line in Fig. 4, a signal is output as shown in Fig. The control circuit 8 outputs a positive signal to the air conditioner adjustment circuit 7 to adjust the set temperature in the vehicle interior to an appropriate level. The vehicle interior temperature is automatically changed to a temperature that the driver feels is suitable. maintain.

[0009] The perceived temperature of a driver varies greatly depending on the individual, even when the ambient temperature is the same. The driver's own perceived temperature is also affected by the clothes the driver is wearing. Since the set temperature inside the vehicle is corrected by The temperature is quickly regulated and the temperature is always maintained at a temperature suitable for the driver. Ru.

0010 Note that the skin blood flow sensor is activated by the driver's grasp of the steering wheel 1 as described above. other surfaces on the steering handle 1 or the steering hand The driver can set the temperature inside the vehicle by installing it in one place, or in multiple places as appropriate, near the vehicle 1. Even if you touch the area where the skin blood flow sensor is installed when trying to change the , a similar effect can be obtained. Also, the sensible temperatures E and F at which the electronic detection circuit 6 starts outputting a signal to the control circuit 8 are , so that the driver can change them as appropriate by adjusting the electronic detection circuit 6. It is also easy to do.

[0011]

[Effect of the idea]

The vehicle air conditioner adjustment device according to the present invention adjusts the air conditioner according to the perceived temperature of the driver. Since the engine temperature adjustment is corrected, the temperature will be adjusted immediately regardless of changes in the driver or driving environment. Correspondingly, the vehicle interior temperature can be corrected to match the driver's senses. This allows the driver to use the air conditioner most effectively.

[Brief explanation of drawings]

FIG. 1 is an enlarged sectional view of essential parts in an embodiment of the present invention.

[Figure 2] Diagram of human body temperature regulation.

FIG. 3 is an electrical circuit diagram of the above embodiment.

FIG. 4 is an explanatory diagram of the operation of the above embodiment.

[Explanation of symbols]

1 Steering handle 2 Transmitter of skin blood flow sensor 3 Receiver of skin blood flow sensor 4 Driver's finger 6 Electronic detection circuit 7 Air conditioner adjustment circuit 8 Control circuit

Claims (1)

[Scope of utility model registration request] 1. A skin blood flow sensor that is placed on the surface of a steering wheel and measures the skin blood flow of a driver, a detection circuit that detects whether or not an air conditioner adjustment temperature is appropriate according to the output of the skin blood flow sensor, and the same. A vehicle air conditioner adjustment device comprising a control circuit that corrects the air conditioner adjustment temperature based on an output signal of a detection circuit.