Systems and methods for engine air filter system diagnostics

    公开(公告)号:US11448152B2

    公开(公告)日:2022-09-20

    申请号:US17176706

    申请日:2021-02-16

    Abstract: A method for diagnosing an air filter status includes receiving, by a controller, sensor data indicative of a mass air flow rate, an air temperature and an air pressure of an air cleaner assembly including an air filter, determining an air filter life remaining from the sensor data, and receiving data indicative of a vehicle condition. The method also includes determining when a first condition is satisfied and when true, triggering an air filter leakage alert. When the first condition is not satisfied, the controller determines when a second condition is satisfied. When the second condition is satisfied, the controller determines when a third condition is satisfied, and when the third condition is satisfied, triggers an air filter snow intrusion alert. When the second condition is satisfied and the third condition is not satisfied the controller triggers an air filter blockage alert.

    SYSTEMS AND METHODS FOR ENGINE AIR FILTER SYSTEM DIAGNOSTICS

    公开(公告)号:US20220260031A1

    公开(公告)日:2022-08-18

    申请号:US17176706

    申请日:2021-02-16

    Abstract: A method for diagnosing an air filter status includes receiving, by a controller, sensor data indicative of a mass air flow rate, an air temperature and an air pressure of an air cleaner assembly including an air filter, determining an air filter life remaining from the sensor data, and receiving data indicative of a vehicle condition. The method also includes determining when a first condition is satisfied and when true, triggering an air filter leakage alert. When the first condition is not satisfied, the controller determines when a second condition is satisfied. When the second condition is satisfied, the controller determines when a third condition is satisfied, and when the third condition is satisfied, triggers an air filter snow intrusion alert. When the second condition is satisfied and the third condition is not satisfied the controller triggers an air filter blockage alert.

    Determining tire leak rate
    3.
    发明授权

    公开(公告)号:US10442257B2

    公开(公告)日:2019-10-15

    申请号:US15656424

    申请日:2017-07-21

    Abstract: Examples of techniques for determining tire leak rate are disclosed. In one example implementation, a method includes receiving, by a processing device, temperature data, pressure data, tire characteristics, and an estimated leak rate associated with the tire. The method further includes calculating, by the processing device, a temperature normalized fused pressure after fusing the temperature data and the pressure data. The method further includes determining, by the processing device, the tire leak rate based at least in part on a decay of the temperature normalized fused pressure over time. The method further includes providing, by the processing device, an alert to an operator of the vehicle that a leak is detected based at least in part on a comparison between the tire leak rate and a leak rate threshold.

    Pressure system for a tire assembly of a vehicle

    公开(公告)号:US09630461B2

    公开(公告)日:2017-04-25

    申请号:US14317532

    申请日:2014-06-27

    CPC classification number: B60C23/0494 B60C23/004 B60C23/041

    Abstract: A tire assembly includes a reservoir, a tire, and a pressure module. The pressure module includes a first valve, a second valve, and a control unit. The first valve selectively directs air from the reservoir to the interior cavity. The second valve directs air from the interior cavity of the tire to the atmosphere. The control unit is configured to selectively send a first control signal to the first valve such that the first valve cycles from a first position, at which air is prevented from flowing from the reservoir to the interior cavity, to a second position, at which air is allowed to flow from the reservoir to the interior cavity of the tire. The control unit is configured to selectively send another first control signal to the first valve such that the first valve cycles from the second position to the first position.

    BRAKE SYSTEM WITH ACTUATION ASSIST
    6.
    发明申请
    BRAKE SYSTEM WITH ACTUATION ASSIST 审中-公开
    制动辅助系统

    公开(公告)号:US20160123418A1

    公开(公告)日:2016-05-05

    申请号:US14527053

    申请日:2014-10-29

    CPC classification number: B60T13/686 B60T13/662 F16D2121/04 F16D2125/10

    Abstract: A wheel braking system includes a fluid source connected to an actuator that applies a force to a friction element for retarding rotation of the wheel. The braking system also includes a hydraulic circuit that has a first fluid passage providing direct communication between the fluid source and the actuator and a second fluid passage in communication with the first passage. The second fluid passage has a first portion and a second portion and includes a reciprocating piston assembly with a first piston fixed to a second piston for selectively amplifying a volume of the pressurized fluid received by the actuator. The first portion of the second passage is in fluid communication with the first piston and the second portion is in fluid communication with the second piston. The first piston has a first diameter and the second piston has a second diameter that is greater than the first diameter.

    Abstract translation: 车轮制动系统包括连接到致动器的流体源,致动器向摩擦元件施加力以阻止车轮的旋转。 制动系统还包括具有提供流体源和致动器之间的直接连通的第一流体通道和与第一通道连通的第二流体通道的液压回路。 第二流体通道具有第一部分和第二部分,并且包括往复活塞组件,其具有固定到第二活塞的第一活塞,用于选择性地放大由致动器接收的加压流体的体积。 第二通道的第一部分与第一活塞流体连通,第二部分与第二活塞流体连通。 第一活塞具有第一直径,第二活塞具有大于第一直径的第二直径。

    Brake pad life monitoring system
    7.
    发明授权
    Brake pad life monitoring system 有权
    刹车片寿命监控系统

    公开(公告)号:US09316278B2

    公开(公告)日:2016-04-19

    申请号:US14094094

    申请日:2013-12-02

    CPC classification number: F16D66/022 F16D66/021 F16D66/026 F16D66/027

    Abstract: A brake pad life monitoring system can monitor the wear of a brake pad operatively coupled to a rotor. The brake pad life monitoring system includes an erodible, electrically non-conductive covering layer operatively coupled to the brake pad such that wear of the erodible, electrically non-conductive covering layer corresponds to the wear of the brake pad. Further, the brake pad life monitoring system includes an electrical circuit having a circuit path from a power supply to a ground. The electrical circuit is at least partially disposed on the erodible, electrically non-conductive covering layer and includes a first resistor connected in series with the power supply and a second resistor electrically connected in parallel with the power supply. The brake pad life monitoring system additionally includes a measuring device electrically connected to the electrical circuit.

    Abstract translation: 刹车片寿命监测系统可以监测可操作地连接到转子的刹车片的磨损。 刹车片寿命监测系统包括可操作地耦合到制动衬块的可侵蚀的非导电覆盖层,使得可侵蚀的非导电覆盖层的磨损对应于制动衬块的磨损。 此外,刹车片寿命监测系统包括具有从电源到地面的电路的电路。 电路至少部分地设置在可侵蚀的非导电覆盖层上,并且包括与电源串联连接的第一电阻器和与电源并联电连接的第二电阻器。 刹车片寿命监测系统还包括电连接到电路的测量装置。

    METHODS AND SYSTEMS TO ADAPTIVELY MONITOR BRAKE PAD WEAR

    公开(公告)号:US20190135257A1

    公开(公告)日:2019-05-09

    申请号:US15802711

    申请日:2017-11-03

    Abstract: An exemplary method of performing a brake pad wear check includes providing a brake assembly, including a brake pad and a brake rotor, providing a controller electronically connected to the brake assembly, the controller configured to calculate an expected wear of the brake pad, determine a brake pad wear threshold, compare the expected wear of the brake pad to the brake pad wear threshold, and if a first condition is satisfied, perform the brake pad wear check.

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