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公开(公告)号：US20170137002A1
公开(公告)日：2017-05-18
申请号：US14928125
申请日：2015-11-18
CPC分类号： B60T8/1708 , B60T7/20 , B60T15/04 , B60T15/223
摘要： A controller for a parking brake system for a commercial vehicle is disclosed. The controller receives a signal indicative of a request to park a tractor, a signal indicative of a request to supply air to a trailer and a signal indicative of a vehicle operating condition. The controller transmits a control signal to a tractor parking brake device and a trailer air supply device in order to park the tractor and maintain the air supply to the trailer to suspend the parking of the trailer in response to the signals.
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公开(公告)号：US09821779B2
公开(公告)日：2017-11-21
申请号：US14944261
申请日：2015-11-18
CPC分类号： B60T8/1708 , B60T7/042 , B60T7/20 , B60T13/683 , B60T15/04 , B60T15/223 , B60T17/22 , B60T2220/04
摘要： Various embodiments of a tractor controller for monitoring trailer brake applications is disclosed. The control logic of the tractor control is capable of receiving a signal indicative of a trailer brake application; receiving a signal indicative of a foot brake application; totaling a number of signals indicative of a trailer brake application for a predetermined time period; and totaling a number of signals indicative of a foot brake application for the predetermined time period. The control logic then compares the total number of signals indicative of a trailer brake application with the total number of signals indicative of a foot brake application. The control logic records a flag in response to the total number of signals indicative of a trailer brake application being greater than the total number of signals indicative of a foot brake application.
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公开(公告)号：US20180273004A1
公开(公告)日：2018-09-27
申请号：US15470225
申请日：2017-03-27
CPC分类号： B60T8/1708 , B60T7/042 , B60T7/085 , B60T7/12 , B60T7/20 , B60T8/38 , B60T8/88 , B60T8/885 , B60T13/263 , B60T13/265 , B60T13/66 , B60T13/662 , B60T13/68 , B60T13/683 , B60T13/74 , B60T15/18 , B60T15/181 , B60T15/182 , B60T15/203 , B60T15/206 , B60T15/223 , B60T15/226 , B60T15/54 , B60T17/221
摘要： A valve system includes a control module on a tractor portion of a vehicle adapted to receive a supply pressure as a control module supply pressure of the pneumatic fluid, receive a control module control pressure of the pneumatic fluid, and deliver a control module delivery pressure of the pneumatic fluid based on the control module supply pressure and the control module control pressure. A park control module selectively transmits the pneumatic fluid at the supply pressure based on a park brake control signal. A supply glad-hand fluidly communicates the selectively transmitted supply pressure of the pneumatic fluid to supply a brake on an associated trailer portion of the vehicle. A control glad-hand fluidly communicates the control module delivery pressure of the pneumatic fluid to control the brake on the associated trailer portion of the vehicle. An exhaust valve, which fluidly communicates with both the selectively transmitted supply pressure and the control module delivery pressure, exhausts the control module delivery pressure of the pneumatic fluid from the control glad-hand.
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公开(公告)号：US20180111595A1
公开(公告)日：2018-04-26
申请号：US15585274
申请日：2017-05-03
申请人： Deere & Company
CPC分类号： B60T15/46 , B60T7/20 , B60T11/108 , B60T11/34 , B60T15/223
摘要： A brake retarder valve for a tractor-trailer combination includes a valve housing and a valve assembly. The valve assembly includes a poppet valve biased by a spring and a gravity spool. The valve assembly is selectively operable between the operative closed configuration and an open configuration in response to a resultant of the fluid pressure between a trailer axle brake and a tractor axle brake. The tractor axle brake is actuated with a time delay from actuation of the trailer axle brake. This delay is actuation of the tractor axle brake prevents jack knifing of the trailer onto the tractor in a tractor-trailer combination, thereby ensuring safety during operation of a tractor-trailer combination.
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公开(公告)号：US20170137003A1
公开(公告)日：2017-05-18
申请号：US14944261
申请日：2015-11-18
CPC分类号： B60T8/1708 , B60T7/042 , B60T7/20 , B60T13/683 , B60T15/04 , B60T15/223 , B60T17/22 , B60T2220/04
摘要： Various embodiments of a tractor controller for monitoring trailer brake applications is disclosed. The control logic of the tractor control is capable of receiving a signal indicative of a trailer brake application; receiving a signal indicative of a foot brake application; totaling a number of signals indicative of a trailer brake application for a predetermined time period; and totaling a number of signals indicative of a foot brake application for the predetermined time period. The control logic then compares the total number of signals indicative of a trailer brake application with the total number of signals indicative of a foot brake application. The control logic records a flag in response to the total number of signals indicative of a trailer brake application being greater than the total number of signals indicative of a foot brake application.
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