Cadence Design Systems, Inc.

Changzheng Engineering Co., Ltd.

Beijing Idriverplus Technology Co.

Beijing Idriverplus Information Technology Co., Ltd.

Virginia Tech Intellectual Properties Inc

State Grid Corporation of China

Candace Design Systems, Inc.

Clp Puri Zhangbei Wind Power Research & Testing Co

China Electric Power Research Institute Company Li

Xiaofei Li

Xiao Wang

Ying Nan Li

Zhehong Qian

Dezhao Zhang

Buying Du

Cheng Xu

Fang Zhang

Yanjuan Zhan

Shuhao Huo

Bo Yan

Wei Xin

Honghai Li

Ruiheng Gao

Yongjin Chen

Li Ni Zhang

Nan Zhang

Yan Zhang

Chun Yen Liu

Xiaoyan Xu

Congbin Jiang

You Peng Huang

Yanping Xu

Chi Yang Li

Lei Zuo

Weisheng Wang

Yuehui Huang

Lizhi Li

Shibin Zhu

Lisheng Yang

Guoqi Peng

Guolong Zhang

Runlin He

Yuefeng Wang

Cun Dong

Hao Pan

Yunfeng Gao

Xiaofeng Pan

Pin Liu

Shiwei Cui

Zicheng Zeng

Disclosed are a preprocessing method and device for distance transformation. The method includes: acquiring a first grid map; calculating a second parameter of a vehicle model; calculating a precision of a second grid map according to the second parameter of the vehicle model and a precision of the first grid map; calculating the numbers of rows and columns of the second grid map according to information on the first grid map, the precision of the second grid map and the second parameter of the vehicle model; determining for each cell of the second grid map a state value according to the numbers of obstacle cells within said each cell; and determining in the first grid map at least one cell requiring no processing, according to the state value. Therefore, during the distance transformation, the processing speed for determining the distance value of each cell is increased.

Preprocessing method and device for distance transformation

Disclosed is a method for adaptive identification of erroneous GPS observed value, including: acquiring positioning information of a vehicle from a GPS sensor, and extracting first observed value data; acquiring posture information and speed information of the vehicle to acquire dead reckoning trajectory data of the vehicle; eliminating the erroneous GPS observed values based on respective data on data status value, heading significant bit, the number of satellites used and horizontal dilution of precision in the first observed value data to obtain second observed value data; constructing pose graph data based on the second observed value data and acquiring processing result information; analyzing and optimizing the processing result information to eliminate the erroneous GPS observed values of which the cost function exceeds a preset cost function threshold to obtain third observed value data; and constructing a high-precision map based on the third observed value data and three-dimensional scene map data.

Method for adaptive identification of erroneous GPS observed value

Disclosed is zero point compensation method and device for EPS. The method includes: acquiring a value of lateral distance when a vehicle travels along an ideal path and obtaining a smoothed lateral distance value, for each control cycle; calculating a longitudinal movement distance value of the vehicle for each control cycle; performing linear fitting to obtain a linear relationship between the longitudinal movement distance value and the smoothed lateral distance value; calculating a zero point compensation angle for the EPS based on a first parameter in the linear relationship and a preset steering wheel transmission ratio, and compensating a steering control angle; and determining that the zero point compensation angle passes verification when a minimum residual error is less than a preset acceptable deviation. In this way, the time required for calibration can be reduced, and the accuracy and effectiveness of the control algorithm can be improved.

Zero point compensation method and device for electric power steering

Disclosed are a vehicle anti-collision forewarning method, an in-vehicle computer device and a vehicle anti-collision forewarning system.

Vehicle anti-collision forewarning method, system and in-vehicle computer device

Embodiments of the invention provide a novel structure of a high-bandwidth-memory command queue of a memory controller with external per-bank refresh and DRAM burst reordering. Where the external per-bank refresh removes some of the unpredictable nature of PBR commands and DRAM burst reordering provides for efficient utilization of memory bandwidth.

Structure of a high-bandwidth-memory command queue of a memory controller with external per-bank refresh and burst reordering

Aspects of the present disclosure involve an apparatus including a port interface coupled with a data bus to receive memory transaction commands, and a command queue coupled with the port interface. Additional aspects include methods of operating such an apparatus, and electronic design automation (EDA) devices to generate design files associated with such an apparatus. The command queue includes a plurality of memory entries to store memory transaction commands, a placement logic module to combine a received memory transaction command with a memory transaction command previously stored in one of the plurality of memory entries of the command queue, and a selection logic module to determine an order to transmit memory transaction commands stored in the plurality of memory entries and transmit the stored memory transaction commands according to the determined order to a memory interface.

Memory controller having command queue with entries merging

Embodiments of the invention provide a command-oriented method to lower power consumption of PHY during idle time periods. The idle time periods occur because HBM Commands have certain timing windows where there is no data transmission on DFI data signals between the memory controller and the PHY data slice. These windows may be utilized to power down the PHY data slice data path through DFI signal handshaking. In contrast to the conventional low power mode, this method provides an advanced low power mode that can further reduce power consumption in different modes at each suitable idle time based on different command types.

Command-oriented low power control method of high-bandwidth-memory system

A method and device for modeling a long-time-scale photovoltaic output time sequence are provided. The method includes that: historical data of a photovoltaic power station is acquired, and a photovoltaic output with a time length of one year and a time resolution of 15 mins is selected (); weather types of days corresponding to the photovoltaic output are acquired from a weather station (), and probabilities of transfer between each type of weather are calculated respectively (); and a simulated time sequence of the photovoltaic output within a preset time scale is generated (), and its validity is verified (). By the method, annual and monthly photovoltaic output simulated time sequences consistent with a random fluctuation rule of a photovoltaic time sequence may be acquired according to different requirements to provide a favorable condition and a data support for analog simulation of time sequence production including massive new energy.

Method and device for modeling a long-time-scale photovoltaic output time sequence

Embodiments of the invention provide an approach to implement a single architecture to support high bandwidth memory of pseudo channel mode or legacy channel mode by using a single command channel and single data channel. An address mapping method forces each port transaction to alternatively split to two pseudo channels. Compared to the conventional pseudo channel architecture, the single architecture and pseudo channel rotation eliminates the need for duplicated command traffic logic, and a time division command arbitrator, which greatly reduces both control logic and power consumption of the circuits. Furthermore, pseudo channel rotation improves the utilization of memory bandwidth because the address mapping improves synchronization of the two pseudo channel traffics.

Architecture of single channel memory controller to support high bandwidth memory of pseudo channel mode or legacy mode

A carbonaceous substance powder gasification system and gasification method. The system comprises a carbonaceous substance reaction apparatus and a gas return apparatus used for raising the pressure of some of a raw syngas cooled and preliminarily purified downstream of the reaction apparatus, then blending with high-temperature raw syngas upstream of the reaction apparatus and reducing the temperature. The method comprises reacting in a gasification reaction apparatus the carbonaceous substance and a gasification agent to generate raw syngas and ash and slag, some of the high-temperature raw syngas moving downstream with fly ash and liquid slag, and some of the high-temperature syngas moving upstream with fly ash; the downstream part of the high-temperature raw syngas being cooled, preliminarily purified and deslagged, then pressurized, and the wet raw syngas being injected into the system and blended with the upstream high-temperature raw syngas; the remainder of the high-temperature syngas moving upstream with fly ash and blending and cooling with the low-temperature wet syngas injected by the preliminary cooler, and optionally being entered into the cooling reaction stage; the cooled or cooling-reacted raw syngas continuing upstream, passing through the upper cooling stage and cooling again and ash being removed to obtain the raw syngas.

Carbonaceous substance gasification system and method

A carbonaceous substance dry powder gasification device and method, the device comprising from bottom to top a lower cooling and purification section (), a gasification reaction section (), a cooling reaction section () and an upper cooling and purification section (); an initial cooling device is disposed at the connection between the cooling reaction section and the gasification reaction section; and a plurality of nozzles are circumferentially arranged in the gasification reaction section. The method comprises: a gasification reaction is conducted between a carbonaceous substance and an oxygenated gasifying agent to generate crude synthesis gas and ash; part of the crude synthesis gas and most of the ash go downstream for cooling and gasification, and the cooled and ash removed crude synthesis gas is transferred to subsequent processes, and the quenched ash is discharged through an ash outlet; the remaining crude synthesis gas and fly ash go upstream to mix with a cooling substance for cooling, and then are transferred to the cooling reaction section for reacting with the incompletely reacted carbon and added gasification agent; the crude synthesis gas and the fly ash are cooled and purified to remove the fly ash, and the clean low-temperature crude synthesis gas is transferred to subsequent processes. The method avoids ash blocking at an ash outlet in an upstream air-exhaust method, and also avoids overheating at the top in a downstream air-exhaust method, thus improving the carbon conversion rate.

Carbonaceous substance gasification device and method

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Beijing, China

Xiaofei Li