JP2011073657A - Air conditioning system and electric vehicle equipped with the same - Google Patents

Air conditioning system and electric vehicle equipped with the same Download PDF

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JP2011073657A
JP2011073657A JP2009230353A JP2009230353A JP2011073657A JP 2011073657 A JP2011073657 A JP 2011073657A JP 2009230353 A JP2009230353 A JP 2009230353A JP 2009230353 A JP2009230353 A JP 2009230353A JP 2011073657 A JP2011073657 A JP 2011073657A
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conditioning system
battery
air conditioning
heating device
auxiliary heating
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Makoto Shibuya
誠 渋谷
Hiroyuki Ogino
弘之 荻野
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Panasonic Corp
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Panasonic Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To overcome such a problem that when the charging rate of a battery falls, an air conditioning system all stops and comfortability is deteriorated in a conventional air conditioning system and an electric vehicle equipped with the same. <P>SOLUTION: The air conditioning system includes: an air conditioner 3 operated by power supply from a battery 2; an auxiliary heating device comprising at least one of a seat heater 10, a radiation heater 11, and a floor heater 12 operated by power supply from the battery 2; and a control means 13. The control means 13 inhibits the operation of the air conditioner 3 when the charging rate of the battery 2 falls lower than a predetermined control threshold, and permits only the operation of the auxiliary heating device. Thereby, the auxiliary heating device directly warms a human body with low power consumption, so that a sensible temperature can be maintained even when the temperature in a cabin drops due to the stop of the air conditioner 3, and a traveling distance can be extended without deteriorating the comfortability. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、電気自動車の空調システムに関するものである。   The present invention relates to an air conditioning system for an electric vehicle.

従来この種の空調装置として、推進用のバッテリーと、推進用のバッテリーから電力を得るエアコンを有した電気自動車がある（例えば、特許文献１参照）。   Conventionally, as this type of air conditioner, there is an electric vehicle having a propulsion battery and an air conditioner that obtains electric power from the propulsion battery (see, for example, Patent Document 1).

図３は、特許文献１に記載された従来の空調システムおよびそれを搭載した電気自動車のブロック図である。   FIG. 3 is a block diagram of a conventional air conditioning system described in Patent Document 1 and an electric vehicle equipped with the air conditioning system.

電気自動車１には、推進用の電力を蓄えたバッテリー２と、車内の冷房暖房をするエアコン（空調装置）３と制御手段４が配されている。エアコン３は、制御手段４に制御され、バッテリー２の電力を用いてコンプレッサーやブロアモータを動作する。   The electric vehicle 1 is provided with a battery 2 that stores electric power for propulsion, an air conditioner (air conditioner) 3 that cools and heats the vehicle, and a control means 4. The air conditioner 3 is controlled by the control means 4 and operates a compressor and a blower motor using the electric power of the battery 2.

制御手段４は、バッテリー２の充電率を把握しており、充電率が低下したときにはエアコン３の動作を禁止することでバッテリー２の電力消耗を抑制し、走行距離を延ばすようにしている。   The control means 4 grasps the charging rate of the battery 2, and when the charging rate is lowered, the operation of the air conditioner 3 is prohibited, thereby suppressing the power consumption of the battery 2 and extending the travel distance.

特開２００５−２４５１０４号公報JP-A-2005-245104

しかしながら、上記従来の空調システムおよびそれを搭載した電気自動車では、運転および空調使用によりバッテリー２を消耗して充電率が低下したときに、空調が効かなくなって快適性が低下するといった課題があった。   However, the conventional air-conditioning system and the electric vehicle equipped with the conventional air-conditioning system have a problem that when the battery 2 is consumed due to driving and air-conditioning use and the charging rate is reduced, the air-conditioning is not effective and the comfort is lowered. .

本発明は、前記従来の課題を解決するもので、本発明は、バッテリーの充電率が低下しても、低電力で効率的な暖房を行うことで快適性の向上と、走行可能距離の延長を両立させる空調システムを提供することを目的とする。   The present invention solves the above-mentioned conventional problems, and the present invention improves comfort and extends travelable distance by performing efficient heating with low power even when the charging rate of the battery decreases. It aims at providing the air-conditioning system which balances.

上記従来の課題を解決するために、本発明の空調システムおよびそれを搭載した電気自動車は、電気自動車に搭載され、推進用電力を蓄えるバッテリーからの給電で作動する空調装置と、前記バッテリーからの給電で作動するシートヒータ、輻射ヒータ、床暖房ヒータ等の少なくとも１つからなる補助暖房装置と、前記空調装置と前記補助暖房装置とを制御する制御手段とを備え、前記制御手段は前記バッテリーの充電率が所定の管理閾値よりも低下すると前記空調装置の作動を禁止し、前記補助暖房装置の作動のみ許可することを特徴としたものである。   In order to solve the above-described conventional problems, an air conditioning system of the present invention and an electric vehicle equipped with the air conditioning system are mounted on the electric vehicle and operated by power supply from a battery that stores propulsion power. An auxiliary heating device comprising at least one of a seat heater, a radiant heater, a floor heating heater and the like that are operated by power supply, and a control means for controlling the air conditioning device and the auxiliary heating device, the control means comprising: When the charging rate falls below a predetermined management threshold, the operation of the air conditioning device is prohibited, and only the operation of the auxiliary heating device is permitted.

これにより、バッテリーの充電率が所定の管理閾値よりも低下して空調装置の作動が禁止されても、前記補助暖房装置が低消費電力で直接人体を暖めるので、空調装置の停止により車室内温度が低下しても体感温度を維持でき、できるだけ快適性を低下させないことが可能となる。   As a result, even if the charging rate of the battery falls below a predetermined management threshold and the operation of the air conditioner is prohibited, the auxiliary heating device directly warms the human body with low power consumption. It is possible to maintain the temperature of sensation even if the temperature drops, and to reduce the comfort as much as possible.

本発明の空調システムおよびそれを搭載した電気自動車は、バッテリーの充電率が低下したときに、空調装置の作動を禁止しても、低電力で暖房できる補助暖房装置を作動させ続けることで、効率的な暖房を行うことができ快適性の向上と、走行可能距離の延長を両立させる空調システムを提供することができる。   The air-conditioning system of the present invention and the electric vehicle equipped with the air-conditioning system are efficient by continuing to operate the auxiliary heating device that can heat with low power even if the operation of the air-conditioning device is prohibited when the charging rate of the battery decreases. Thus, it is possible to provide an air conditioning system that can perform efficient heating and achieves both improvement in comfort and extension of the travelable distance.

本発明の実施の形態１における電気自動車の空調システムのブロック図1 is a block diagram of an air conditioning system for an electric vehicle according to Embodiment 1 of the present invention. 本発明の実施の形態１における空調システムを搭載した電気自動車の構成図Configuration diagram of an electric vehicle equipped with an air conditioning system according to Embodiment 1 of the present invention 従来の電気自動車の空調システムのブロック図Block diagram of a conventional electric vehicle air conditioning system

第１の発明は、電気自動車に搭載され、推進用電力を蓄えるバッテリーからの給電で作動する空調装置と、前記バッテリーからの給電で作動するシートヒータ、輻射ヒータ、床暖房ヒータ等の少なくとも１つからなる補助暖房装置と、前記空調装置と前記補助暖房装置とを制御する制御手段とを備え、前記制御手段は前記バッテリーの充電率が所定の管理閾値よりも低下すると前記空調装置の作動を禁止し、前記補助暖房装置の作動のみ許可することを特徴とすることにより、前記補助暖房装置が低消費電力で直接人体を暖めるので、空調装置の停止により車室内温度が低下しても体感温度を維持することができる。   At least one of an air conditioner that is mounted on an electric vehicle and is operated by power supply from a battery that stores propulsion power, and a seat heater, a radiation heater, a floor heater, etc. that are operated by power supply from the battery. And a control means for controlling the air conditioner and the auxiliary heating apparatus, and the control means prohibits the operation of the air conditioner when the charging rate of the battery falls below a predetermined management threshold. Since the auxiliary heating device directly warms the human body with low power consumption, only the operation of the auxiliary heating device is permitted. Can be maintained.

そのため、低電力で補助暖房装置を作動させ続けることで、効率的な暖房を行うことができ快適性の向上と、走行可能距離の延長を両立させる空調システムを提供することができる。   Therefore, by continuing to operate the auxiliary heating device with low power, efficient heating can be performed, and an air conditioning system that can improve comfort and extend the travelable distance can be provided.

第２の発明は、特に第１の発明の空調システムにおいて、在席検知手段を備え、在席部だけ補助暖房装置の作動を許可することを特徴とすることにより、各座席に人の着座を検出する在席検知手段を配置し、人の着座を検出した座席の補助暖房装置のみ作動させることにより、無駄な電力消費を抑えることができるため、さらに走行可能距離の延長させることができる空調システムを提供することができる。   The second invention is characterized in that, in the air conditioning system of the first invention in particular, the seating detection means is provided, and the operation of the auxiliary heating device is permitted only in the seating portion, so that a person can be seated in each seat. An air conditioning system that can further extend the travelable distance because it can suppress wasteful power consumption by disposing seat detection means to detect and operating only the auxiliary heating device of the seat that detects the seating of a person. Can be provided.

第３の発明は、特に第１または第２のいずれか１つの発明の空調システムにおいて、所定の閾値とは、現在地から最寄の充電スタンドまで走ることのできる充電率とすることにより、ＧＰＳやカーナビゲータなどの情報から、現在地と最寄の充電スタンドまでの距離と必要な充電率を把握して、充電率がそれ下回る前に空調装置を停止し補助空調装置のみの通電に切り替えることとなり、より確実に充電可能な場所まで到達でき、さらに空調装置による暖房の停止をできる限り引き伸ばすことができ、さらに空調装置が停止しても、補助暖房装置により暖房を続けることができるので快適性の向上と、走行可能距離の延長を両立させる空調システムを提供することができる。   According to a third aspect of the invention, in particular, in the air conditioning system of the first or second aspect of the invention, the predetermined threshold is a charging rate at which the vehicle can run from the current location to the nearest charging station. From information such as car navigator, grasp the distance from the current location to the nearest charging station and the required charging rate, stop the air conditioning device before the charging rate falls below it, and switch to energizing only the auxiliary air conditioning device, It is possible to reach a place where charging can be performed more reliably, and the heating stop by the air conditioner can be extended as much as possible, and even if the air conditioner stops, the auxiliary heating device can continue heating, improving comfort In addition, an air conditioning system that can extend the travelable distance can be provided.

第４の発明は、特に第１または第２のいずれか１つの発明の空調システムにおいて、所定の閾値とは、現在地から予め入力設定された登録地点まで走ることのできる充電率とすることで、カーナビゲータの登録地点、例えば自宅や自社の位置情報と、ＧＰＳなど情報から検出された現在地情報から、登録地点までの距離と必要な充電率を算出、充電率がそれを下回る前に空調装置を停止し補助空調装置のみの通電に切り替えることとなり、より確実に充電可能な場所まで到達でき、さらに暖房の停止をできる限り引き伸ばすことができ、さらに空調装置が停止しても補助暖房装置により暖房を続けることができるので快適性の向上と、走行可能距離の延長を両立させる空調システムを提供することができる。   In the fourth aspect of the invention, in particular, in the air conditioning system of the first or second aspect of the invention, the predetermined threshold value is a charging rate at which the vehicle can run from the current location to a preset registration point, Calculate the distance to the registration point and the required charging rate from the location information of the car navigator, for example, the location information of your home or company, and the current location information detected from information such as GPS. It will stop and switch to energizing only the auxiliary air conditioner, it will be possible to reach a place that can be charged more reliably, and the heating stop can be extended as much as possible. Since it can be continued, it is possible to provide an air conditioning system that achieves both improvement in comfort and extension of the travelable distance.

第５の発明は、特に第１から第４のいずれか１つの発明の空調システムを搭載した電気自動車とすることで、推進も空調もバッテリーの電力で賄う電気自動車の、限られたバッテリーの電力を有効に使用し、効率的な暖房による快適性の向上と、走行可能距離の延長
を両立させる空調システムを有する電気自動車を提供することができる。 The fifth invention is an electric vehicle equipped with the air conditioning system of any one of the first to fourth inventions in particular, and the electric power of the limited battery of the electric vehicle that covers both propulsion and air conditioning with the electric power of the battery. It is possible to provide an electric vehicle having an air-conditioning system that effectively uses the vehicle to improve comfort by efficient heating and to extend the travelable distance.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお本実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

（実施の形態１）
本発明の第１の実施の形態における加熱装置およびそれを搭載した電気自動車について図１および図２を用いて説明する。図１は本発明の第１の実施の形態における空調システムおよびそれを搭載した電気自動車のブロック図、図２は本発明の第１の実施の形態の空調システムを搭載した電気自動車の構成図である。 (Embodiment 1)
A heating device and an electric vehicle equipped with the heating device according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a block diagram of an air conditioning system and an electric vehicle equipped with the air conditioning system according to the first embodiment of the present invention, and FIG. 2 is a configuration diagram of the electric vehicle equipped with the air conditioning system according to the first embodiment of the present invention. is there.

図１、図２に示すように電気自動車１には、推進用の電力を蓄えたバッテリー２と、車内の冷房暖房をするエアコン３（空調装置）とシートヒータ１０、輻射ヒータ１１、床暖房ヒータ１２（補助暖房手段）と、制御手段１３が配されている。   As shown in FIGS. 1 and 2, an electric vehicle 1 includes a battery 2 that stores electric power for propulsion, an air conditioner 3 (air conditioner) that cools and heats the vehicle, a seat heater 10, a radiant heater 11, and a floor heater. 12 (auxiliary heating means) and control means 13 are arranged.

エアコン３は、制御手段１３に制御され、バッテリー２の電力を用いてコンプレッサーやブロアモータを動作する。   The air conditioner 3 is controlled by the control means 13 and operates the compressor and the blower motor using the electric power of the battery 2.

また、制御手段４は、バッテリー２の充電率を把握しており、充電率が低下して管理閾値を下回ったときにはエアコン３の動作を禁止することでバッテリー２の電力消耗を抑制し、走行距離を延ばすようにしている。ただこのとき、制御手段１３はシートヒータ１０、輻射ヒータ１１、床暖房ヒータ１２の作動は許可するようにする。これらの補助暖房装置はエアコン３に比べると消費電力が小さいわりに人体の近くで作用するため体感温度を維持でき快適性を損なわない。   Further, the control means 4 grasps the charging rate of the battery 2 and suppresses the power consumption of the battery 2 by prohibiting the operation of the air conditioner 3 when the charging rate falls below the management threshold, thereby reducing the travel distance. To extend. However, at this time, the control means 13 permits the operation of the seat heater 10, the radiation heater 11, and the floor heating heater 12. Although these auxiliary heating devices operate in the vicinity of the human body although they consume less power than the air conditioner 3, they can maintain the sensible temperature and do not impair comfort.

さらに、個々の座席には圧電センサ（在席検知手段）１４が配置されており、人１５の着座している座席のシートヒータ１０、輻射ヒータ１１、床暖ヒータ１２通電を許可しているため、バッテリー２の消費をさらに抑えることができる。   Furthermore, a piezoelectric sensor (occupation detection means) 14 is arranged in each seat, and energization of the seat heater 10, the radiation heater 11, and the floor warming heater 12 of the seat on which the person 15 is seated is permitted. The consumption of the battery 2 can be further suppressed.

従って、電気自動車の走行距離の延長と、快適性の向上を両立することができる。   Therefore, it is possible to achieve both the extension of the travel distance of the electric vehicle and the improvement of comfort.

このときバッテリー２の充電率の所定の管理閾値とは、現在地から最寄の充電スタンドまで走ることのできる充電率とする。現在地と最寄の充電スタンドの距離は、ＧＰＳやカーナビゲータなどの位置情報、ルート情報また距離情報から計算して必要な電力を算出することで充電率の管理閾値とする。そして充電率が管理閾値を下回ったときには警告音とともにカーナビゲータの画面に充電を促す警告を表示すると伴にエアコン３を停止してシートヒータ１０、輻射ヒータ１１、床暖房ヒータ１２のみの通電に切り替えることにより、暖房全体の消費電力を抑え走行可能距離を延ばしより確実に充電スタンドまで到達できるようになる。   At this time, the predetermined management threshold value for the charging rate of the battery 2 is a charging rate at which the vehicle 2 can run from the current location to the nearest charging station. The distance between the current location and the nearest charging station is calculated from position information such as GPS and car navigator, route information, and distance information, and is used as a charge rate management threshold by calculating necessary power. When the charging rate falls below the control threshold, a warning message is displayed on the car navigator screen together with a warning sound. At the same time, the air conditioner 3 is stopped and only the seat heater 10, the radiant heater 11, and the floor heater 12 are energized. As a result, the power consumption of the entire heating is reduced, the travelable distance is extended, and the charging station can be reached more reliably.

このように限られたバッテリー２の電力を有効に使用し、快適性を損なわない暖房と走行可能距離の延長を両立させる空調システムを有する電気自動車を提供することができる。   In this way, it is possible to provide an electric vehicle having an air conditioning system that effectively uses the limited electric power of the battery 2 and achieves both heating without impairing comfort and extension of the travelable distance.

またバッテリー２の充電率の所定の管理閾値を次のようにしても良い、現在地から予め入力設定された登録地点例えば自宅や自社まで走ることのできる充電率とする。そして充電率が管理閾値を下回ったときには警告音とともにカーナビゲータの画面に充電を促す警告を表示すると伴にエアコン３を停止してシートヒータ１０、輻射ヒータ１１、床暖房ヒータ１２のみの通電に切り替えることにより、暖房全体の消費電力を抑え走行可能距離を延ばしより確実に自宅や自社に到達し充電することができるようになる。   Further, a predetermined management threshold value for the charging rate of the battery 2 may be set as follows, and is set to a charging rate at which the vehicle 2 can run from a current location to a registered point set in advance, for example, at home or in-house. When the charging rate falls below the control threshold, a warning message is displayed on the car navigator screen together with a warning sound. At the same time, the air conditioner 3 is stopped and only the seat heater 10, the radiant heater 11, and the floor heater 12 are energized. As a result, the power consumption of the entire heating can be reduced, the travelable distance can be extended, and the home or company can be reached and charged more reliably.

このように限られたバッテリー２の電力を有効に使用し、快適性を損なわない暖房と走行可能距離の延長を両立させる空調システムを有する電気自動車を提供することができる。   In this way, it is possible to provide an electric vehicle having an air conditioning system that effectively uses the limited electric power of the battery 2 and achieves both heating without impairing comfort and extension of the travelable distance.

本実施の形態では補助暖房手段として、シートヒータ１０、輻射ヒータ１１、床暖房ヒータ１２を配置する構成としたが、これに限られることは無く、このうちのどれか１つ、または２つを配置しても良い。   In the present embodiment, the seat heater 10, the radiant heater 11, and the floor heater 12 are arranged as auxiliary heating means. However, the present invention is not limited to this, and any one or two of them are used. It may be arranged.

以上のように、本発明にかかる空調システムは、限られたバッテリーの電力を有効に使用し、効率的な暖房による快適性の向上と、走行可能距離の延長を両立させる空調システムを有するため、エンジンの廃熱の小さいハイブリッド自動車のエアコン暖房の快適性の向上と、走行距離を延長する装置としても応用可能である。また乗用車に限らずバス、トラックなどの商用車の電気自動車にも応用可能である。   As described above, since the air conditioning system according to the present invention has an air conditioning system that effectively uses limited battery power and achieves both improvement in comfort by efficient heating and extension of the travelable distance, It can also be applied to improve the comfort of air conditioning heating of hybrid cars with low engine waste heat and extend the mileage. Further, the present invention can be applied not only to passenger cars but also to electric vehicles such as buses and trucks.

２ バッテリー
３ エアコン（空調装置）
１０ シートヒータ（補助暖房装置）
１１ 輻射ヒータ（補助暖房装置）
１２ 床暖ヒータ（補助暖房装置）
１３ マイコン（制御手段）
１４ 圧電センサ（在席検知手段） 2 Battery 3 Air conditioner (air conditioner)
10 Seat heater (auxiliary heating device)
11 Radiant heater (auxiliary heating device)
12 Floor heater (auxiliary heater)
13 Microcomputer (control means)
14 Piezoelectric sensor (attended detection means)

Claims (5)

電気自動車に搭載され、推進用電力を蓄えるバッテリーからの給電で作動する空調装置と、前記バッテリーからの給電で作動するシートヒータ、輻射ヒータ、床暖房ヒータ等の少なくとも１つからなる補助暖房装置と、前記空調装置と前記補助暖房装置とを制御する制御手段とを備え、前記制御手段は前記バッテリーの充電率が所定の管理閾値よりも低下すると前記空調装置の作動を禁止し、前記補助暖房装置の作動のみ許可することを特徴とした空調システム。 An air conditioner that is mounted on an electric vehicle and operates by power supply from a battery that stores propulsion power, and an auxiliary heating device that includes at least one of a seat heater, a radiation heater, a floor heater, and the like that operates by power supply from the battery And a control means for controlling the air conditioner and the auxiliary heating device, the control means prohibiting the operation of the air conditioner when the charging rate of the battery falls below a predetermined management threshold, and the auxiliary heating device An air conditioning system that only allows the operation of 在席検知手段を備え、在席部だけ補助暖房装置の作動を許可することを特徴とした請求項１記載の空調システム。 The air-conditioning system according to claim 1, further comprising: a seating detection unit that permits operation of the auxiliary heating device only in the seating portion. 所定の閾値とは、現在地から最寄の充電スタンドまで走ることのできる充電率とした請求項１または請求項２のいずれか１項記載の空調システム。 The air conditioning system according to any one of claims 1 and 2, wherein the predetermined threshold is a charging rate that allows the vehicle to run from the current location to the nearest charging station. 所定の閾値とは、現在地から予め入力設定された登録地点（＝自宅、自社、目的地など）まで走ることのできる充電率とした請求項１または請求項２のいずれか１項記載の空調システム。 The air conditioning system according to any one of claims 1 and 2, wherein the predetermined threshold value is a charging rate at which the vehicle can run from a current location to a registration point (= home, own company, destination, etc.) set in advance. . 請求項１〜４のいずれか１項記載の空調システムを搭載した電気自動車。 The electric vehicle carrying the air-conditioning system of any one of Claims 1-4.
JP2009230353A 2009-10-02 2009-10-02 Air conditioning system and electric vehicle equipped with the same Pending JP2011073657A (en)

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CN107860065B (en) * 2017-11-10 2023-10-24 西藏世峰高科能源技术有限公司 Charging pile monitoring room air conditioning system
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