Grille shutter opening/closing control device

A technology of opening and closing control and air door, which is applied in the direction of coolant flow control, power device, measuring device, etc., can solve the problems of insufficient improvement of fuel consumption, increase of power consumption of air conditioner, increase of fuel consumption, etc., and achieve improved driving Efficiency, reduced power consumption, and reduced load

Active Publication Date: 2013-01-09
HONDA MOTOR CO LTD
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  • Abstract
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Problems solved by technology

[0005] However, in the above-mentioned existing opening and closing control device, only the opening and closing of the grille damper is controlled according to the water temperature of the radiator, the operation status of the air conditioner, and the temperature in the engine room.
Therefore, depending on the external environment of the vehicle, the actual operating state of the air conditioner, etc., the closing of the grille door may conversely worsen the fuel consumption, and thus the fuel consumption may not be sufficiently improved.
[0006] For example, when the air co...

Method used

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  • Grille shutter opening/closing control device
  • Grille shutter opening/closing control device
  • Grille shutter opening/closing control device

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Embodiment Construction

[0047] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. like figure 1 As shown, a vehicle V equipped with an opening and closing control device 1 to which the present invention is applied has a ventilation device 40 at its front. The ventilation device 40 has a grille 42 , a duct 43 , and a grille shutter mechanism 41 sequentially from the front side of the vehicle V (left side in the figure), and a condenser 11 and a radiator 12 of an air conditioner 32 described later are provided behind it.

[0048] The grill shutter mechanism 41 has: a damper base 44, a support member 45 extending in the vertical direction in the damper base 44, a plurality of horizontal shafts 46 supported on the support member 45, and a grid rotatably mounted on each shaft 46. grille door 47. Each grille shutter 47 is rotatably connected via a joint 51 to a vertically extending slide link 48 , and the slide link 48 is connected to the rotary...

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Abstract

Provided is a grille shutter opening/closing control device capable of appropriately opening and closing a grille shutter according to the environment outside a vehicle and the operating state of an air conditioner while ensuring the operation of the air conditioner, thereby achieving sufficient improvement of the operation efficiency of the vehicle. An air conditioner operating time ratio (RA/CON) that is the ratio of the operating time of an air conditioner (32) to the overall time is calculated. When the calculated air conditioner operating time ratio (RA/CON) is larger than the sum of a threshold value (RREF) calculated according to an ambient temperature (TAM) and a hysteresis constant ( R), a grille shutter (47) is opened (steps 29, 31, 73, 77). As a result, the cooling of a refrigerant in the air conditioner (32) can be accelerated and power consumption of the air conditioner (32) can be reduced. Therefore, the grille shutter (47) can be appropriately opened and closed according to the ambient temperature (TAM) and the operating rate of the air conditioner (32) while the operation of the air conditioner (32) is ensured, thereby achieving the improvement of fuel cost.

Description

technical field [0001] The present invention relates to a control device for opening and closing a grille shutter, which is freely opened and closed at the front of a vehicle, and when opened, outside air for cooling the refrigerant of an air conditioner is introduced into the vehicle Inside. Background technique [0002] As a conventional grille shutter opening and closing control device, for example, a device described in Patent Document 1 is known. The grill damper is used to blow the outside air for cooling to the radiator arranged in the engine compartment of the vehicle. In this opening and closing control device, the water temperature of the radiator is detected, and when the detected water temperature is equal to or higher than a predetermined temperature, the grill damper is opened to cool the radiator in order to prevent the engine from overheating. On the other hand, when the water temperature of the radiator is lower than a predetermined temperature, the grill ...

Claims

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Application Information

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IPC IPC(8): B60K11/04B60H1/32
CPCF01P2025/48B60H2001/3248B60K11/085B60H2001/3277B60H2001/3238B60H2001/3266B60H1/3208F01P7/10
Inventor 西村荣二郎江原谅次
Owner HONDA MOTOR CO LTD
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