Abstract: A vehicle power supply circuit including a power source input for receiving an input current having an input voltage is disclosed. A first branch and a second branch are each connected to the power source input. Each branch includes a converter for converting the input current to an output current. A first distribution unit is connected to each converter for receiving the output current and includes a plurality of first outputs for supplying power to a plurality of loads.

Abstract: Disclosed is an electrical power switching circuit. The electrical power switch circuit includes a first semiconductor switch having a first control input and a second semiconductor switch having a second control input. The first semiconductor switch and the second semiconductor switch are connected in series. The electrical power switch circuit includes a comparator configured to compare a first voltage to a second voltage and to output a first electrical signal if the first voltage exceeds the second voltage by a first predetermined threshold and to output a second electrical signal if the second voltage exceeds the first voltage by a second predetermined threshold. The electrical power switch circuit includes a combiner configured to combine the first signal and the second signal and to feed a combined signal to the first and second control inputs of the first and second semiconductor switches.

Abstract: This document describes techniques and systems for target testing based on raw uncalibrated radar data. Channel responses (e.g., Raw radar data) are obtained from a sensor having a Multiple-input multiple-output (MIMO) antenna array. The channel responses, based on target detections, are arranged in a MIMO measurement matrix. The dominant singular values of the observation matrix are determined, and the quantity of dominant singular values is compared to the number of targets, either from prior information or estimated after calibration, in the FOV of the sensor. If the number of dominant singular values is different than the number of targets, either from prior information or estimated after calibration, then further analysis may be used to determine the cause of the difference. In this manner, potential damaged sensors or degradation from cover reflections may be identified, sensor status independent of calibration may be monitored, and calibration may be improved.

Abstract: This document describes techniques and components of a radar system with a sparse primary array and a dense auxiliary array. Even with fewer antenna elements than a traditional radar system, an example radar system has a comparable angular resolution at a lower cost, lower complexity level, and without aliasing. The radar system includes a processor and antenna arrays that can receive electromagnetic energy reflected by one or more objects. The antenna arrays include a primary subarray and an auxiliary subarray. The auxiliary subarray includes multiple antenna elements with a smaller spacing than the antenna elements of the primary subarray. The processor can determine, using the received electromagnetic energy, first and second potential angles associated with the one or more objects. The processor then associates, using the first and second potential angles, respective angles associated with each of the one or more objects.

Abstract: A radar sensor includes: a waveguide interface configured to contact a waveguide including a first aperture that is at least partially vertically aligned with a second aperture in the waveguide; a radio frequency (RF) feed; a first wing that is coplanar with the RF feed and the waveguide interface and that electrically connects the RF feed with the waveguide interface; a first electrically conductive layer that is connected to a ground potential, that includes a third aperture that is at least partially aligned with the first and second apertures, and that includes a second wing that forms a portion of the third aperture.

Abstract: This document describes interleaving chirps for unambiguous range rate estimation. A signal model quickly and unambiguously estimates range rates for any chirp within one frame. During each frame, a transmission of radar signals is caused by interleaving two different groups of chirps (e.g., up-chirps and down-chirps) in an ordered sequence. This unique pattern of chirps enables the signal model to compute an ambiguity term for each frame (e.g., an ambiguity variable for each group). The ambiguity term is often not zero. With ambiguity considered for the frame, range rate estimates can be provided without ambiguity. When applied to a solution for estimating range rate, the ambiguity term allows quick, and unambiguous results to be obtained for any possible detection. Ambiguity is resolved without having to analyze multiple frames. This increase in accuracy and performance enables wider adoption of radar and may promote safe driving.

Abstract: A printed circuit board (PCB) housing includes a main body and a cover. The main body includes an opening with an uppermost edge surface and an internal PCB receiver portion for locating and accommodating a PCB within the main body. The cover is for interfacing with an outer edge surface of the opening and enclosing the PCB within the main body. The cover includes a PCB retainer configured for contacting against a surface of the PCB such that, when assembled, the PCB is retained securely in position between the PCB receiver portion and the PCB retainer. The cover includes an outwardly extending resilient flange or bridge configured for covering the opening of the main body to press against the edge surface for welding thereto under tension.

Abstract: A connector assembly includes a connector body and a lock member. The connector body includes a plurality of walls, a locking arm, and an inner portion. The plurality of walls define a cavity configured to receive a terminal. The locking arm is coupled to a first wall of the plurality of walls and includes a first surface, a second surface opposite the first surface, and a lock tab extending from the first surface. The inner portion is disposed within the cavity. The lock member is removably-disposed within the cavity and defines an aperture configured to receive the terminal. In an assembled configuration, the locking arm inhibits removal of the lock member from the cavity, and the lock member is disposed between the lock tab and the inner portion.

Abstract: An electronic system includes an enclosure including a cooling plenum portion and an electronics system portion. The enclosure includes a base wall, plurality of side walls, and a dividing wall separating the cooling plenum portion and the electronics system portion, the dividing wall including an opening. A circuit board is arranged in the electronics system portion. An electronic chip is mounted to the circuit board. A conditioned air delivery system is arranged to direct a flow of conditioned fluid into the cooling plenum portion. The flow of conditioned fluid passing through the opening into the electronic systems portion to cool the electronic chip.

Abstract: A radio frequency network comprises an input port, a first output port, a second output port, a third output port, and a multiport filter. The multiport filter comprises a first filter port coupling the multiport filter to the input port, a second filter port coupling the multiport filter to the first output port and a third filter port coupling the multiport filter to the second output port. The multiport filter receives, at the first filter port, first electromagnetic energy having a first frequency and second electromagnetic energy having a second frequency, passes a first portion of the first electromagnetic energy to the second filter port, passes a second portion of the first electromagnetic energy to the third filter port, and reflects the second electromagnetic energy. The third output port is coupled in between the input port and the first filter port and outputs the second electromagnetic energy.

Abstract: An integrated sensor system includes a radome, a camera assembly, a radar antenna housing, a radar circuit board, and a rear cover. The radome includes a main body portion and a set of connecting portions and defines a first opening. The camera assembly includes a camera lens, a sealing member disposed between the camera lens and the radome, a camera housing, and a camera circuit board. The radar circuit board is configured to communicate with the camera circuit board and transmit and receive radio-frequency signals through the waveguide structure. The rear cover includes a connector configured to electrically connect the radar circuit board to an external electrical system and a set of vehicle mounting points.

Abstract: A method is provided for validating annotations of objects. Spatial datapoints acquired by a sensor and annotation data are received. The annotation data is associated with the acquired spatial data points and includes an identification of each respective object. Via a processing unit, the annotations of the objects are validated by performing the steps of: determining a target range for at least one property of the objects, determining, from the acquired spatial datapoints and/or from the annotation data, a respective value of the at least one property for each respective object, and for each object, identifying the object as an erroneous object if the respective value of the at least one property is outside the target range for the at least one property. The erroneous object is selected for review regarding erroneous annotation.

Abstract: An orientation system comprises an orientation sensor, a distance sensor, and vehicle processing unit. The orientation sensor is configured to generate orientation data. The distance sensor is configured to generate relative distance data measuring relative distances to objects external to the vehicle. The vehicle processing unit is configured to receive the orientation data from the orientation sensor and the relative distance data from the distance sensor, wherein the vehicle processing unit detects orientation errors based on the relative distance data.

Abstract: Thermal management and shielding techniques for a radar device of a vehicle, the radar device having a radar transceiver circuit and a radar-transmissive radome, include a housing formed of a thermally-conductive plastic material and configured to receive and provide shield grounding to the radar transceiver circuit, and a metal layer applied to an inner surface of the housing to provide for thermal spreading of heat energy generated by the radar transceiver circuit.

Abstract: A radar system for a vehicle includes: a processing device having multiple transmit outputs and multiple receive inputs; a main transmit antenna to transmit main radar waves essentially parallel to a road, and coupled to the processing device via a first transmit output; a main receive antenna to receive reflections of the main radar waves off objects, and coupled via a first receive input; a first street condition monitoring (SCM) transmit antenna to transmit first polarized radar waves essentially directed to the road at a first polarization, and coupled via a second transmit output; and a first SCM receive antenna to receive, at the first polarization, reflections of the polarized radar waves off the road, and coupled via a second receive input. The system can include second SCM transmit and receive antennas coupled via a third transmit output and a third receive input and operating at a second polarization.

Abstract: A coolant fluid manifold assembly for coupling to multiple cold plates includes a first manifold portion including a first positioning member. The manifold assembly includes a second manifold portion including a second positioning member. The second manifold portion is configured to couple to the first manifold portion. The second positioning member is configured to engage the first positioning member to correctly position the first and second manifold portions.

Abstract: Vehicle power architecture including a plurality of functional blocks for implementing functions, a power supply input for receiving a direct current power supply, and an electric control unit, ECU. The ECU includes a control block for controlling the plurality of functional blocks to perform functions, and a plurality of power control switches, each being switchable under the control of the control block between a closed state where at least one respective functional block is connected to the power supply input and an open state where the at least one respective functional block is disconnected from the power supply input. The power control switches may be part of a power control module.

Abstract: A male and female power terminal assembly including a male terminal having a male contact portion including an outer contact surface and an inner surface, and a female terminal having a female contact portion including a sleeve and a finger made of an electrically conductive material. The outer contact surface is electrically connected to an inner surface of the sleeve. Further, the male terminal includes a connecting member made of an electrically conductive material which is placed inside a cylindrical hollow portion of the male terminal, and which interconnects the finger with the inner surface.

Abstract: A camera includes an objective carrier assembly including a carrier where a camera sensor and a camera objective are mounted. The camera includes a camera housing configured to at least partially enclose the objective carrier assembly. The camera housing includes a first housing part where the objective carrier assembly is mounted. The camera housing includes a second housing part that is mounted on the first housing part.

Abstract: A computer implemented method for determining a countermeasure to resonances in a vehicle comprises the following steps carried out by computer hardware components: determining information related to a status of a vehicle; determining whether resonances occur in the vehicle based on the information; if it is determined that resonances occur in the vehicle, determining a countermeasure to the resonances.