JPH02310119A - Heating apparatus for vehicle - Google Patents

Abstract

PURPOSE:To sustain a set exhalation air temperature in spite of variation in radiating quantity of an exhaust heat heating apparatus by correctively controlling an opening and closing position of an air mix door based on an exhalation air temperature of the exhaust heat heating apparatus, in a device arranged in parallel with a warm water heating apparatus and the heat pipe type exhaust heat heating apparatus. CONSTITUTION:An air conditioner 10 parallely equipped with a warm water heating apparatus containing a warm water core 7 connected to an engine cooling water pipe 5 in feed side and a cooling water pipe 6 in return side, and an exhaust heat heating apparatus containing an exhaust heat core 9 connected to an evaporator 29 positioned to the upper part of an expanded part 30 in an exhaust pipe 3 with a heat pipe 8, has a fan 11, an air mix door 12, and an evaporator for cooling and so on in addition thereto, and blows out suitably air conditioned air from a blow out port 13 and the like. The air mix door 12 is controlled on opening by a temperature regulating lever 14. In this case, an exhalation air temperature sensor 17 is provided in downstream side of the exhaust heat core 9, a motor 21 is driven by a controller unit 28 in accordance with an output signal thereof, and an opening and closing position of the air mix door 12 is made to correctively controlled via a link 27.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a heating device for a vehicle.

(Prior Art) Generally, a vehicle is equipped with a heating device to heat the interior of the vehicle. Normally, the mainstream heating system is a so-called hot water heating system that uses cold NJ water from the engine, which is the power source of the vehicle, as its heat source, but in recent years, heat pipes have been developed that use the exhaust heat of two engines as a heat source. A type exhaust heat heating gi has been proposed (see Japanese Utility Model Application Publication No. 16211/1983). This system uses a hot water heating system and an exhaust heat heating system in combination to effectively utilize the wasted exhaust heat to increase the heating effect.

(Problems to be Solved by the Invention) However, in this conventional device, the desired discharge temperature is adjusted by operating the temperature control lever. : When set, the exhaust temperature tends to change depending on the operating conditions, so there is a problem that the exhaust air temperature changes and does not match the set value, causing a sense of discomfort. Further, the amount of change in the discharge temperature with respect to the operation h of the temperature control lever (I'1III5) temperature control characteristics was not linear to 4T, which also caused a problem.

This invention is based on heat dissipation h of a vibrator type exhaust heat heating device.
Even if l changes, if the discharge temperature is maintained at the set temperature, it will be -14,
Temperature control 4. The purpose is to provide a heating system for a vehicle that keeps the temperature linear and does not cause discomfort.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a temperature control system in a vehicle heating system equipped with a hot water heating system Doji-1-vibrating exhaust heat heating system. An operating device such as a lever, an air mix door whose opening/closing position is determined in conjunction with the operating device, a temperature sensor that detects the discharge temperature of the heat pipe type exhaust pre-warming RA device, and an outlet of the temperature sensor. A control device is provided for correcting and controlling the opening/closing position of the Konitsunomics door determined by the operating device based on the above-mentioned operating device.

(Function) Assume that the temperature control lever is operated and the opening degree of the air mix door is determined to obtain a certain discharge temperature. And elJl temperature fσ
When ljl is high and therefore the temperature is also high, the temperature sensor detects this and outputs it to the control device, which closes the 17 mix door slightly to eliminate the difference with the set value. This reduces the amount of air flowing through A and lowers the discharge temperature. In addition, such compensation 1F is performed at each operating position of the temperature control lever (
゛, The change in the discharge temperature that appears due to the amount of this operation is not affected by the 0 of Bee 1 to Puff 1, and the warm water is gone! It will be a linear 7 with a 5-cell main end.

(Actual flow example) An embodiment of the present invention will be explained below with reference to FIG.

The engine 1 discharges exhaust gas through an exhaust manifold 2 and an exhaust pipe 3. Inside the car, which is partitioned by Darashiko Panel 4, there is a cold 3J) water pipe on the sending side! 5 and cold j on the return side
There is an air conditioner 10 which is connected to the Jl water pipe 6 and the exhaust pipe 3 through a heat pipe 8. Air conditioner H10 has fan 11
The air mix door 12 is equipped with a cooling evaporator, etc. not shown on the map, and blows out appropriately conditioned air [-,,,,
113<'cdl)+r U blowout 71'cJ Unatsu-
c', and a discharge temperature sensor (temperature sensor) 17 is connected to this blowout L113.

Exhaust heat': Connect the middle of the vibrator 8 to JA9 Toji-1
A liquid tank 23 and a solenoid valve 24 are interposed in the pipe 22 of A, and ? [By closing the a valve 24, the internal water is stored in the liquid tank 23.] The lower end of the heat vibrator 8 is connected to the evaporator 29 located on one side of the bulge 30 of the exhaust pipe 3, and when the bypass tonneau 734 is opened, the exhaust heat generates water inside the two L evaporators (10 of the total volume). 2179% of distilled water) evaporates and releases its heat before exhausting.
It is designed to be transported to

The code 1/I is a temperature control lever which is an operating device, and the temperature control lever 1
4 has an operation knob 15 and rotates around a fulcrum 16;
Link 18 connects air mix door 12 to section 11 19
connected to. In this case, it is preferable that the stroke of the knob 15 is 100 mm Pi!
A locking member 11 installed in parallel with the locking portion 19 of the J Amick store 12
The portion 20 is connected to a lever 26 of a motor 21 by a link 27. The control device 28 converts the output signal of the temperature sensor 17 into an electric current!
i! J31.32, and wires 35.36 cover the output so as to rotate the motor 21 forward or reverse. [The spring 33 is attached to the rotating shaft 12a of the air mix door 12, and serves to hold the door 12 at a predetermined opening position.

Next, the operation of the above embodiment will be explained. , the hot water pipe 77 receives heat from the cooling water of the corn gin 1 through the cooling water pipes 5 and 6. This heat does not change much depending on the operating conditions because the front sound ffi is human and the temperature is controlled by a thermostat. Before antagonism: The core 9 receives the heat of the exhaust gas by transporting the water and air in the two evaporators to the heater 1 by the vibrator 8. The steam or water that has lost heat passes through the pipe 22 and returns to the evaporator 29, where it is evaporated again and this process is repeated. fan 11
When A7 rotates, air flows through the opening of the air mix door 12 at an opening position corresponding to the operating position of the temperature control lever 14.
and 9, the heated air flows out from the air outlet 113 into the room, and is used for heating.

Here, depending on the operating conditions such as acceleration, the exhaust temperature may change to 1-t-
Then: The temperature of the air 9 also rises, and its discharge temperature decreases. The temperature sensor 17 detects the exhaust air temperature and outputs it to the control device 28 through electric wires 31 and 32. The control device 28 receives the output and compares it with a reference value, and determines that the temperature tp is a predetermined value h (high). The electric wire 351 is cut off, and the electric wire 351 outputs (temperature f (if j is low, use the electric wire 3G) ±-ta 2) to reverse rotation 1 at a predetermined angle. is rotated by the same angle in the direction of closing the air mix door 12 (counterclockwise) via the reverse rotation link 27 at a predetermined minute angle.

This binding reduces the amount of air 61 passing through air 7 and air 9, lowering the discharge temperature. In this way, the air mix door 12 whose open/close position is determined according to the position of the temperature control lever 14 is slightly rotated, and its opening degree is corrected. For this reason,
Even if the heating capacity of the heating system changes due to changes in operating conditions, the operating temperature of the heating system can be maintained at the set value.

Since the above 1 J and Una corrections are performed at any position of the temperature control lever 14, the influence of the heat pipe type exhaust heat heating device is eliminated, and the same temperature control special issue as that of the original drought-proofing device is achieved. I will do it.

Figure 2 1 shows a temperature control characteristic diagram with the temperature control lever position on the horizontal axis and the temperature on the vertical axis, where the dotted line a is for this invention, and the solid line 1] is for hot water heating only. 6, the broken line C is the conventional version of the Inno-J theory. The characteristic curve of this invention indicated by the dotted line a is linear, and the characteristic curve of the hot water heating indicated by the solid line 1] is linear.
It can be seen that the curve is close to 1. The conventional curve shown by the broken line C does not have the compensation i [as in the present invention, so
The closer the temperature control lever position is to the 110th position, the more the curve becomes Q.
, 1-fJ L/, it can be seen that it is affected by the exhaust heat.

In the embodiment 1- above, a case has been described in which the temperature control member 171 as an operating device and the air mix door 12 are mechanically connected by the link 18, but the present invention is not limited thereto. For example, there is no problem in applying the button-type operating device, the interlocking method, and the electric type using a motor with reverse rotation.

[Effects of the Invention] The structure of the J, sea urchin, and nib according to the present invention as explained below in 1-1 can be used to describe a hot water heating device 1 to a pipe-type square air thermal heating device 01 for vehicle heating. In the device, an operating device such as a temperature control lever, an air mix door that is linked to the operating device and determines opening/closing position, and the above-mentioned beer 1 generous portion 117
A temperature sensor that detects the discharge temperature of the exhaust heat heating system, and a control device that controls the opening/closing position of the core mix door determined by the operating device based on the output of the temperature pincer. If the heat radiation 61 of the heat pipe type exhaust heat heating system fluctuates, it is possible to maintain the standard operating temperature by correcting the opening of the air mix door, and also to adjust the notes when the heat pipe type exhaust heat heating system is operating. 1
4 can be made linear.

[Brief explanation of the drawing]

FIG. 1 is a systematic explanatory diagram without showing an embodiment of the present invention, and FIG. 2 is a curve diagram without showing temperature control of 1/1. Explanation of symbols appearing in the drawings 1...1-engine 2...exhaust manifold 3...
Cultivation pipe 4...Dash panel 5...Cooling water pipe (feed) 6...Cooling water pipe (return) 7...Hot water ■1a 8...Pipe to heat 19...
Exhaust heat core 10...Air conditioner 1'1...Fan
12...Air mix door 13...Blowout [114.
... Temperature control lever 15 ... Operation knob (cooling water temperature) 16 ... Fulcrum 17 ... Discharge temperature sensor 1 (temperature tip) 18 ... Link 19 ... Locking part 20 ... Engagement Stop part 21...Motor 22...Pipe 23...Liquid tank 24...Solenoid valve 25...Pipe 26...Lever 27...Link 28...Control device two... Evaporake 30...
・Bulging portion 31...Electric wire 32...Electric wire 33...Torque spring 34...Bypass door 35...Electric wire 36...Electric wire

Claims (1)

[Claims] A vehicle heating system that is equipped with a hot water heating system and a heat pipe type exhaust heat heating system includes an operating device such as a temperature control lever, an air mix door whose opening/closing position is determined in conjunction with the operating device, and the heat pipe type exhaust heat system. A heating device for a vehicle, comprising: a temperature sensor that detects the discharge temperature of the thermal heating device; and a control device that corrects and controls the opening/closing position of an air mix door determined by the operating device based on the output of the temperature sensor. .