Bendix Commercial Vehicle Systems LLC

United States

Bendix Commercial Vehicle Systems LLC

United States

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Patent
Bendix Commercial Vehicle Systems LLC | Date: 2017-06-21

When calculating true inter-camera distance, offset images of a reference object such as a lane marker from at least two cameras coupled to an articulating vehicle are overlaid and shifted until the reference objects in each image are aligned. The distance by which the reference object images are shifted, as well as any rotation required to align the images, is used to calculate the actual distance between the cameras and to compensate for average yaw angle between the cameras when positioning the images for digital stitching to generate a composite surround view image.


Patent
Bendix Commercial Vehicle Systems LLC | Date: 2017-06-21

When calculating an angle of articulation between two portions of an articulated vehicle such as a tractor-trailer combination, a camera-based articulation angle measuring system comprises camera(s) mounted on the tractor and/or trailer that observe their counterpart and/or features on the other portion of the vehicle. The angles or locations of the counterpart features are measured in the image(s) produced by the camera(s). A geometric model is employed to convert the location and/or angular measurements into a corresponding articulation and/or roll angle for the tractor-trailer combination.


Patent
Bendix Commercial Vehicle Systems LLC | Date: 2017-06-14

A camera system (20) on a vehicle includes an electronic control unit (26), a base sensor (22B), on a first portion (12) of the vehicle (10), and a remote sensor (22R1, R2, R3) on a second portion (14) of the vehicle. The base sensor and the remote sensor commuincate with the electorinic control unit. The electronic control unit associates the remote sensor with the base sensor based on respective signals received from the base sensor and the remote sensor representing respective measurements of a first physical quanitity by the base sensor and the remote sensor.


Patent
Bendix Commercial Vehicle Systems LLC | Date: 2017-01-11

A method and controller for controlling the purge cycling of an air dryer assembly is disclosed. The controller includes a control output for transmitting a control signal for controlling the air dryer. The controller is capable of initiating an enhanced purge cycle for the air dryer based on a regeneration volume value. The regeneration volume value is based on the accumulated volume of air delivered to the air dryer for a first time or since a prior standard purge cycle.


Patent
Bendix Commercial Vehicle Systems LLC | Date: 2017-07-26

When detecting an object of interest, such as a bicyclist passing a truck, two downward looking cameras both capture images of the cyclist and detect the cyclist as a deviation from the flat ground plane. The ground plane is reconstructed using a homography (projection) matrix of each camera and compared. Where the camera images do not agree, the ground is not flat. The cyclist is located as the intersection of the rays extending to either end of the area of disagreement between the images.


Patent
Bendix Commercial Vehicle Systems LLC | Date: 2017-07-26

When blending individual vehicle-mounted camera images into a coherent composite image of the vehicle surroundings, objects in the respective images are analyzed to determine the presence of a pedestrian. When the individual images are blended to form the composite image, multiple pedestrian shadow views of the pedestrian are replaced with background pixels to erase the pedestrian, and a semi-symbolic graphical representation of the pedestrian is superimposed at the location of the actual pedestrian in the composite image. The graphical representation is proportional to the pedestrian in the composite image and includes features unique to the pedestrian it represents. The composite image with the graphical representation is then presented to a viewer.


Patent
Bendix Commercial Vehicle Systems LLC | Date: 2016-08-29

Various embodiments of a heat-exchange dryer apparatus are disclosed. In one embodiment, a heat-exchange dryer apparatus includes a desiccant cartridge comprising desiccant material, a purge-air reservoir secured to the desiccant cartridge, and a compressed-air conduit disposed inside the purge-air reservoir. In another embodiment, a vehicle air-brake system includes an air compressor, a desiccant cartridge comprising desiccant material, and a heat exchange dryer apparatus disposed between the compressor and the desiccant. The temperature of the compressed air is decreased while the temperature of the purge air is increased and the desiccant adsorbs a greater amount of contaminants form the compressed air for improved drying.


Patent
Bendix Commercial Vehicle Systems LLC | Date: 2016-08-10

Various embodiments of an apparatus and method for monitoring a brake operation are disclosed. In accordance with one aspect, the brake operation monitoring system comprises a plurality of wheel speed sensors, a brake demand sensor; a plurality of stability sensors and a controller. The controller comprises wheel speed ports; a brake demand port; stability sensor ports; a communication port for receiving a plurality of messages; and a processing unit comprising control logic. The control logic receives a brake demand signal, at least one stability signal indicative of the cornering of the vehicle, and individual wheel speeds. The control logic calculates a master value to compare to individual wheel speed signals if the brake demand signal indicates no braking.


Patent
Bendix Commercial Vehicle Systems LLC | Date: 2016-04-11

Systems and methods that facilitate protecting vehicle impact event data from overwrite include an electronic control unit (ECU) having a processor that records event data related to vehicle operation, a memory that stores the event data, and an electronic tool that communicates with the ECU and comprises a data locking module that sends a data lock signal to the ECU to lock the stored event data as locked data such that the stored event data cannot be overwritten. The ECU, in response to the data lock signal, stores the event data as locked data in a dedicated portion of the memory to preserve the event data for subsequent review.


An apparatus and method for protecting an intact portion of a service brake system from a failed wheel end of a vehicle is provided. A failure in a wheel end is detected by determining an operation state of each of the wheel ends by monitoring parameters including the pressure in a parking brake air supply line. When it is determined that a failed wheel end is present in the service brake system, a service brake isolation valve is switched to a state in which the failed wheel end is isolated from the rest of the brake system. The service brake of the failed wheel end is disabled, while the service brakes of the other wheel ends are enabled for normal operation. The parking brake of the failed wheel end is enabled, while the parking brakes of the other wheel ends are disabled to prevent immobilization of the vehicle.

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