CN1220633A - 空气弹簧式悬架 - Google Patents

空气弹簧式悬架 Download PDF

Info

Publication number
CN1220633A
CN1220633A CN97195130A CN97195130A CN1220633A CN 1220633 A CN1220633 A CN 1220633A CN 97195130 A CN97195130 A CN 97195130A CN 97195130 A CN97195130 A CN 97195130A CN 1220633 A CN1220633 A CN 1220633A
Authority
CN
China
Prior art keywords
air compressor
pneumatic suspension
estimated valve
described pneumatic
computing machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN97195130A
Other languages
English (en)
Other versions
CN1098172C (zh
Inventor
约亨·霍尔瓦特
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7795836&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CN1220633(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Daimler Benz AG filed Critical Daimler Benz AG
Publication of CN1220633A publication Critical patent/CN1220633A/zh
Application granted granted Critical
Publication of CN1098172C publication Critical patent/CN1098172C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/018—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
    • B60G17/0185—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method for failure detection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • B60G17/0408—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics details, e.g. antifreeze for suspension fluid, pumps, retarding means per se
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10—Other safety measures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/15—Fluid spring
    • B60G2202/152—Pneumatic spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/70—Temperature of vehicle part or in the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/70—Temperature of vehicle part or in the vehicle
    • B60G2400/71—Temperature of vehicle part or in the vehicle of suspension unit
    • B60G2400/712—Temperature of vehicle part or in the vehicle of suspension unit of spring
    • B60G2400/7122—Fluid spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/20—Spring action or springs
    • B60G2500/205—Air-compressor operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/02—Retarders, delaying means, dead zones, threshold values, cut-off frequency, timer interruption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/08—Failure or malfunction detecting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/18—Automatic control means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2201/00—Pump parameters
    • F04B2201/08—Cylinder or housing parameters
    • F04B2201/0801—Temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vehicle Body Suspensions (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

本发明涉及一种空气弹簧式悬架,特别是汽车用空气弹簧式悬架,该空气弹簧式悬架备有一台压气机,压气机可按需要和按参量通过自动的计算机辅助控制装置来开动和关闭。控制装置的计算机根据经验值确定压气机工作温度的估计值,从而如果估计值超过预定的温度界限值则可自动地关闭压气机。

Description

空气弹簧式悬架
本发明涉及一种空气弹簧式悬架，特别是汽车用空气弹簧式悬架，该空气弹簧式悬架备有一台压气机，压气机可按需要被开动和关闭并且在空气弹簧式悬架正常工作期间长时间地停顿而只需要间歇地工作。
汽车用空气弹簧式悬架在原理上是已知的并被大量使用。在压气机的压力侧，一般设置有气压蓄压器，气压蓄压器由压气机经常保持有显著高于空气弹簧装置或空气弹簧波纹管的工作压力的充气压力。这里，压气机一般只在蓄压器必须再充气时才开动，压气机的输出功率可以低于在空气弹簧式悬架的最大耗能时的最大输出功率，因为足够的压力供应总是由蓄压器来保证。DE3130874C2示出这样一种空气弹簧式悬架，它备有由电动机按需要来驱动的一台压气机。
此外还曾经试图在空气弹簧式悬架方面不用蓄压器并且在需要时由压气机以压缩空气直接供给空气弹簧装置或空气弹簧波纹管。这特别是在下述情况时是可以的：基本上只在车身高度降低或升高时而不是在正常的弹簧上升情况下改变空气弹簧装置的充气量。
必须使压气机的承载能力与有关的需要相适应。在行驶过程中，不必担心过载，因为必须加以考虑的也仅仅是车身高度的微小变化或可能有的少量的漏气。
然而，如果空气弹簧式悬架能够在停车时升高或降低车辆或能够与车辆负荷无关地将车辆保持在一预定的高度上，可能存在基本上不同的情况。在这些情况下，压气机可能遭受极大的负荷，甚至由于高度变化能力的不适当利用也是如此。
因此本发明的目的是提供一种有利的压气机过载保护装置。
在开头所述空气弹簧式悬架型式的情况下，该目的是这样实现的：开动和关闭压气机的控制装置包括一台计算机，计算机算出压气机工作温度的估计值并且如果估计值超过上界限值则关闭压气机，而如果该估计值低于下界限值则再开动压气机或使压气机能被再开动。
本发明基于这样的一般构思：将在开头所述型式的空气弹簧式悬架的情况中总是所希望的和必要的计算机辅助的压气机控制装置安置成，根据经验值可以估计压气机的工作温度。由于该控制装置开动和关闭压气机，它“知道”压气机的运行过程，且因而也“知道”其负荷状态。此外，能够充分“小心”地确定估计值，从而压气机的实际工作温度以近乎肯定的概率低于估计值。
能被认为是本发明的一个特别优点在于，为了监测压气机的运行在控制系统上不需要附加的传感器和附加的信号输入。因此，也不必考虑这些部分的故障。
按照本发明的一个优选实施形式，为估计值预定了一个最小值。该最小值，例如40℃，基于车辆等的最大预期环境温度。
此外，合乎目的规定：在压气机开动时各最后的估计值增大了一个可预定的或预定的温升，可以使增大的度数视最后的估计值的大小而定。在较长的停顿时间以后，即在压气机的温度已降至较低的温度时，在压气机启动后较短的时间内工作温度会显著升高。在压气机典型工作温度的区域内这样的温升缓慢。这种情况当为了使必须算出的温升在压气机被打开时适用可以加以考虑。
在压气机的运行过程中，估计值以一预定的或可预定的正变化率增大。
当压气机停顿时，估计值以预定的或可预定的负变化率减小。
这例如可通过使估计值总是在一可预定的时间间隔后以预定的小温差来增大或减小。
如果停车，特别是通过停机装置操作停车，计算机继续工作到一预定的时间间隔-例如5分钟-以便能够确定压气机温度的当前估计值并将该估计值取为压气机随后运行过程中的初始温度值。只有当较长时期的停车时才以上述的、例如预定的最小温度值40℃开始计算温度。
对于本发明的其他优选特征，请参阅权利要求书和对附图的以下说明，一优选的实施方案借助附图例示性地加以说明。
在附图中，唯一的图以方块图的形式示出空气弹簧系统的部分表示图。
未详细示出的空气弹簧系统具有一台压气机1，它由电动机2驱动。该电动机2通过计算机辅助控制电路3按参量自动开动和关闭，计算机辅助控制电路3还操作空气弹簧系统的阀4的控制机构(未示出)。
在输入侧，控制电路3连接于传感器5，各传感器5检测例如车身与车轮之间的垂直距离并因而检测高度，从而控制电路3能够通过设定值与实际值的比较设定或保持一要求的高度，这是控制电路3通过按需要适当地开动和关闭电动机2且因而开动和关闭压气机1以及通过以相应的方式操作阀4实现的。
此外，控制电路3在输入侧连接于可手操作的指令发送器6，该发送器6可以安装在例如车辆的司机位置和/或安装在一扇车门上，例如一后挡板上，并且通过它的操作，即使在停车时也可预定一设定的高度。因而，有可能例如通过升高或降低车身的高度以便于车辆的装载或卸载。
最后，一旦车辆的优选为电子的停机装置7生效，控制电路3就收到一个信号。
由于控制电路3“知道”运行时间以及电动机2和压气机1的开动时间和停顿，有可能利用经验值通过控制电路3具有的计算机确定压气机1的工作温度的估计值，如开头所述。
用这种方式，确保压气机1的过载保护而毫无必要为此设置单独的传感器和在控制电路3上设置这些传感器具有的特别输入。

Claims (6)

1．空气弹簧式悬架，特别是汽车用空气弹簧式悬架，该空气弹簧式悬架备有一台压气机，压气机可按需要被开动和关闭并且在空气弹簧式悬架正常工作期间长时间地停顿而只需要间歇地工作，其特征在于：开动和关闭压气机(1)的控制装置(3)包括一台计算机，该计算机算出压气机(1)工作温度的估计值并且如果估计值超过上界限值则关闭压气机，而如果该估计值低于下界限值则开动压气机或允许压气机被开动。
2．按照权利要求1所述的空气弹簧式悬架，其特征在于：为估计值预定一最小值。
3．按照权利要求1或2所述的空气弹簧式悬架，其特征在于在压气机(1)开动时各最后一个估计值以一预定的温升增大。
4．按照权利要求1至3中之一项所述的空气弹簧式悬架，其特征在于，在压气机的运行过程中估计值以预定的正变化率增大，而当压气机停顿时估计值以预定的负变化率减小。
5．按照权利要求4所述的空气弹簧式悬架，其特征在于：估计值总是在一预定的时间间隔后以一预定的小温差增大或减小。
6．按照权利要求1至5中之一项所述的空气弹簧式悬架，其特征在于，在停车以后，计算机修正温度的估计值以适用于下一时间间隔。
CN97195130A 1996-05-31 1997-04-23 空气弹簧式悬架 Expired - Fee Related CN1098172C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19621946A DE19621946C2 (de) 1996-05-31 1996-05-31 Luftfederung
DE19621946.9 1996-05-31

Publications (2)

Publication Number Publication Date
CN1220633A true CN1220633A (zh) 1999-06-23
CN1098172C CN1098172C (zh) 2003-01-08

Family

ID=7795836

Family Applications (1)

Application Number Title Priority Date Filing Date
CN97195130A Expired - Fee Related CN1098172C (zh) 1996-05-31 1997-04-23 空气弹簧式悬架

Country Status (6)

Country Link
EP (1) EP0901419B2 (zh)
KR (1) KR100317835B1 (zh)
CN (1) CN1098172C (zh)
DE (2) DE19621946C2 (zh)
ES (1) ES2163764T5 (zh)
WO (1) WO1997046404A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102003488A (zh) * 2010-11-18 2011-04-06 江苏大学 一种容积可变的恒定内压空气弹簧附加气室
CN102003489A (zh) * 2010-11-19 2011-04-06 江苏大学 一种容积可变的多腔空气弹簧附加气室及其工作方法
CN105172509A (zh) * 2015-07-23 2015-12-23 合肥扬帆通信元器件有限公司 一种ahc高度控制系统以及车辆

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19810764B4 (de) 1998-03-12 2005-05-25 Continental Aktiengesellschaft Bedarfsabhängig ein- und ausschaltbarer Kompressor und Verfahren zur Steuerung bzw Regelung eines solchen Kompressors
DE19812234C2 (de) * 1998-03-20 2002-07-18 Daimler Chrysler Ag Luftfederungsanlage für Fahrzeuge
DE10120206A1 (de) * 2001-04-24 2002-10-31 Wabco Gmbh & Co Ohg Verfahren zur Steuerung eines Kompressors
DE10330121A1 (de) * 2003-07-04 2005-02-03 Continental Aktiengesellschaft Verfahren zur Steuerung des Betriebs eines Kompressors
DE10331600B4 (de) 2003-07-12 2012-03-15 Continental Teves Ag & Co. Ohg Verfahren zur Niveauregelung für pneumatische Niveauregelanlagen in Kraftfahrzeugen
SE0302259L (sv) * 2003-08-21 2004-12-28 Scania Cv Abp Anordning i ett fordon med luftfjädring samt fordon med luftfjädring innefattande sådan anordning
DE10354491A1 (de) * 2003-11-21 2005-06-09 Continental Aktiengesellschaft Verfahren zur Steuerung eines Kompressors zur Druckmittelförderung in einer Niveauregelanlage eines Kraftfahrzeuges
DE102006039538B4 (de) * 2006-08-23 2014-12-24 Continental Teves Ag & Co. Ohg Verfahren zur Steuerung eines bedarfsabhängig ein- und ausschaltbaren Kompressors einer Luftfederungsanlage
DE102007008736A1 (de) 2007-02-22 2008-08-28 Wabco Gmbh Verfahren zur Steuerung eines Kompressors und Vorrichtung zur Durchführung des Verfahrens
DE102008028781A1 (de) 2008-06-17 2009-12-24 Continental Aktiengesellschaft Verfahren zur Steuerung des Betriebs eines Kompressors
DE102009003686A1 (de) * 2009-03-27 2010-09-30 Continental Aktiengesellschaft Kraftfahrzeug mit einer Niveauregelanlage
DE102009003745A1 (de) 2009-04-06 2010-10-07 Continental Aktiengesellschaft Verfahren zur Steuerung des Betriebs eines Kompressors
DE102010016131B4 (de) 2010-03-25 2021-09-16 Continental Teves Ag & Co. Ohg Verfahren zur Regelung eines Kompressors
DE102010017654A1 (de) 2010-06-30 2012-01-05 Continental Teves Ag & Co. Ohg Höhenabhängige Kompressorsteuerung
DE102010036744A1 (de) 2010-07-29 2012-02-02 Continental Teves Ag & Co. Ohg Verfahren zur Steuerung eines Kompressors
DE102012223163A1 (de) 2012-12-14 2014-06-18 Continental Teves Ag & Co. Ohg Verfahren zum Betreiben eines Kompressors
DE102019214858A1 (de) * 2019-09-27 2021-04-01 Continental Teves Ag & Co. Ohg Verfahren zur Lebensdauerkontrolle eines Kompressors für eine Druckluftanlage

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5733010A (en) * 1980-08-04 1982-02-23 Honda Motor Co Ltd Car height adjusting apparatus for vehicle
JPS6127293Y2 (zh) * 1981-06-19 1986-08-14
JPS59155584A (ja) * 1983-02-24 1984-09-04 Atsugi Motor Parts Co Ltd コンプレツサの温度制御装置
DE3919407A1 (de) † 1988-07-14 1990-01-18 Eco Air Drucklufttechnik Gmbh Verfahren zum steuern eines verdichters und steuerungseinrichtung
JPH03118719A (ja) * 1989-09-29 1991-05-21 Seikosha Co Ltd モータの制御方法
DE4038080A1 (de) † 1990-11-29 1992-06-04 Bosch Gmbh Robert Antriebsschlupfregelsystem
JPH06320928A (ja) * 1993-05-10 1994-11-22 Aisin Seiki Co Ltd 車高調整装置用コンプレッサの制御装置
DE4333591A1 (de) * 1993-10-01 1995-04-06 Bayerische Motoren Werke Ag Steuergerät zum bedarfsgerechten Ein- und Ausschalten des elektrischen Antriebsmotors, insbesondere eines Luftkompressors

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102003488A (zh) * 2010-11-18 2011-04-06 江苏大学 一种容积可变的恒定内压空气弹簧附加气室
CN102003488B (zh) * 2010-11-18 2012-05-23 江苏大学 一种容积可变的恒定内压空气弹簧附加气室
CN102003489A (zh) * 2010-11-19 2011-04-06 江苏大学 一种容积可变的多腔空气弹簧附加气室及其工作方法
CN102003489B (zh) * 2010-11-19 2013-01-23 江苏大学 一种容积可变的多腔空气弹簧附加气室及其工作方法
CN105172509A (zh) * 2015-07-23 2015-12-23 合肥扬帆通信元器件有限公司 一种ahc高度控制系统以及车辆

Also Published As

Publication number Publication date
EP0901419A1 (de) 1999-03-17
EP0901419B1 (de) 2001-09-19
KR20000016005A (ko) 2000-03-25
ES2163764T3 (es) 2002-02-01
DE59704671D1 (de) 2001-10-25
KR100317835B1 (ko) 2002-06-20
DE19621946C2 (de) 2002-05-29
WO1997046404A1 (de) 1997-12-11
EP0901419B2 (de) 2004-11-10
CN1098172C (zh) 2003-01-08
ES2163764T5 (es) 2005-05-16
DE19621946C1 (de) 1997-09-18

Similar Documents

Publication Publication Date Title
CN1098172C (zh) 空气弹簧式悬架
EP0523194B1 (en) Charge/purge control system for air dryer with humidity control
CN106696937B (zh) 气压制动系统及基于该制动系统控制空压机的启停方法
EP0919410A3 (en) Vehicle air conditioning system with expansion valve control during high pressure cycle conditions
CN102596668A (zh) 在制动系统中用于真空泵的功能监控的方法
CA2653018C (en) Method for braking electrically driven vehicles
US5129713A (en) Anti-skid brake control system with fail-safe system responsive to abnormal power supply
CN111120287B (zh) 空压机控制方法、系统和存储介质
US5493495A (en) Apparatus for detecting occurrence of failure in anti-skid brake control system for motor vehicle
US6292726B1 (en) System and method for controlling the switching on of ancillary equipment driven by an engine
CN100406323C (zh) 监测缓速器制动力矩变化的方法
WO1998007588A1 (en) Device and method for control of air compressor
JP3304542B2 (ja) 自動車用電動圧縮機の制御駆動装置
US5285650A (en) Automobile condenser electric fan controller
MX2007006700A (es) Control electronico para el sistema de carga de aire comprimido de un tractocamión deservicio pesado.
CN112644429A (zh) 车轮踏面清扫控制装置和方法、车轮踏面清扫系统
CN102050110A (zh) 小排量汽车汽油发动机开空调时制动真空度提高控制系统及方法
CN106224217B (zh) 一种汽车用有油电动空压机防润滑油乳化的方法
AU2015100693A4 (en) Heavy machinery and vehicle airconditioning system
US7974763B2 (en) Process and onboard power supply of a motor vehicle with an anticipating temporary torque derivation of the internal-combustion engine
JPH09132053A (ja) 駆動ユニットのアイドリングの制御方法および装置
CN113635844B (zh) 一种车用压缩空气智能集成控制系统
KR0152186B1 (ko) 자동차용 에어콘 제어장치
JPH0712146Y2 (ja) 自動車のクルーズコントロール装置
EP4197828A1 (en) A vehicle air management system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee
REG Reference to a national code

Ref country code: HK

Ref legal event code: WD

Ref document number: 1020925

Country of ref document: HK