-
61.发明申请公开(公告)号：US20190003839A1
公开(公告)日：2019-01-03
申请号：US15532861
申请日：2017-05-22
申请人： Baidu USA LLC
发明人： Sen HU , Fan ZHU , Qi KONG , Qi LUO , Xiang YU , Zhenguang ZHU , Xiaoxin FU , Jiarui HE , Hongye LI , Yuchang PAN , Zhongpu XIA , Chunming ZHAO , Guang YANG , Jingao WANG
IPC分类号： G01C21/32 , G06F17/30 , B60W40/072 , G05D1/00
摘要： In one embodiment, when an ADV is driving on a road segment, a driving parameter is recorded in response to a first control command. A difference between the first driving parameter and a target driving parameter corresponding to the first control command is determined. In response to determining that the difference exceeds a predetermined threshold, a second control command is issued to compensate the difference and cause the ADV to drive with a second driving parameter closer to the target driving parameter. A slope status of the road segment is derived based on at least the second control command. Map data of a map corresponding to the road segment of the road is updated based on the derived slope status. The updated map can be utilized to generate and issue proper control commands in view of the slope status of the road when the ADV drives on the same road subsequently.
-
公开(公告)号：US20180348775A1
公开(公告)日：2018-12-06
申请号：US15615378
申请日：2017-06-06
申请人： Baidu USA LLC
发明人： Xiang YU , Qi KONG , Qi LUO , Fan ZHU , Sen HU , Guang YANG , Jingao WANG
IPC分类号： G05D1/02
CPC分类号： G05D1/0221 , B60W30/14 , B60W40/10 , B60W2050/0028 , G05D2201/0213
摘要： State of an autonomous driving vehicle (ADV) is measured and stored for a location and speed of the ADV. Later, the state of the ADV is measured for the location and speed corresponding to a previously stored state of the ADV at the same location and speed. Fields of the measured stored states of the ADV are compared. If one or more differences between the measured and stored ADV states exceeds a threshold, then one or more control input parameters of the ADV is adjusted, such as steering, braking, or throttle. Differences may be attributable to road conditions or to state of servicing of the ADV. Differences between measured and stored states of the ADV can be passed to a service module. Service module can access crowd sourced data to determine whether one or more control input parameters for a driving state of one or more ADVs should be updated.
-
63.发明申请公开(公告)号：US20180330173A1
公开(公告)日：2018-11-15
申请号：US15595529
申请日：2017-05-15
申请人： Baidu USA LLC
发明人： Fan ZHU , Qi KONG , Qi LUO , Xiang YU , Sen HU , Li ZHUANG , Liangliang ZHANG , Weicheng ZHU , Haoyang FAN , Yajia ZHANG , Guang YANG , Jingao WANG
摘要： When generating a control command of an autonomous driving vehicle (ADV), a pitch status and/or a roll status of the road is determined. The control command is adjusted based on the pitch status and the roll status. For example, when an ADV is driving on an uphill or downhill road, a pitch status of the road is determined and a speed control command will be generated based on the pitch status of the road, such that the ADV have a similar acceleration rate as of driving on a flat road. Similarly, when the ADV is driving on a road that is tilted or rolled left or right, a roll status of the road is determined and a steering control command will be generated in view of the roll status of the road, such that the ADV have a similar heading direction as of driving on a flat road.
-
64.发明申请公开(公告)号：US20180326956A1
公开(公告)日：2018-11-15
申请号：US15592101
申请日：2017-05-10
申请人： Baidu USA LLC
发明人： Fan ZHU , Qi KONG , Qi LUO , Xiang YU , Sen HU , Guang YANG , Jingao WANG
摘要： In one embodiment, it is determined that an ADV is about to decelerate based on perception of a driving environment surrounding the ADV. In addition, if there is another vehicle that is following the ADV, a distance between the ADV and the following vehicle, as well as the speed of the following vehicle, is determined. A deceleration rate that is required for the following vehicle to avoid a collision with the ADV is determined based on the distance between the ADV and the following vehicle and the speed of the following vehicle. If the deceleration rate is greater than a predetermined threshold, a brake light and an emergency light of the ADV are turned on to warn the following vehicle that the ADV is about to rapidly decelerate as it is treated as an emergency situation.
-
公开(公告)号：US20180196440A1
公开(公告)日：2018-07-12
申请号：US15313523
申请日：2016-11-17
申请人： Baidu USA LLC
发明人： Fan ZHU , Qi KONG , Xiang YU , Sen HU , Qi LUO , Zhenguang ZHU , Yuchang PAN , Wenli YANG , Guang YANG , Jingao WANG
摘要： In one embodiment, an autonomous driving vehicle (ADV) speed following system determines how much and when to apply a throttle or a brake control of an ADV to maneuver the ADV around, or to avoid, obstacles of a planned route. The speed following system calculates a first torque force to accelerate the ADV, a second torque force to counteract frictional forces and wind resistances to maintain a reference speed, and a third torque force to minimize an initial difference and external disturbances thereafter between predefined target speed and actual speed of the ADV over a planned route. The speed following system determines a throttle-brake torque force based on the first, second, and third torque forces and utilizes the throttle-brake torque force to control a subsequent speed of the ADV.
-
66.发明申请公开(公告)号：US20170242875A1
公开(公告)日：2017-08-24
申请号：US15051297
申请日：2016-02-23
申请人： Baidu USA LLC
发明人： Yifei JIANG , Shuang WU , Dong LI , Jiangtao HU , Fan ZHU , Qi KONG , Guang YANG , Jingao WANG
IPC分类号： G06F17/30
CPC分类号： G06F17/30268 , G06F17/3028 , G06F17/30554 , G06F17/30707 , G06F17/30864 , G06F17/30867
摘要： According to one embodiment, a content analysis module receives content information of a content item, the content information including a plurality of first keywords associated with the content item. The content analysis module performs an analysis on the first keywords associated with the content item. A keyword classifier categories the first keywords into a plurality of categories based on the analysis, each category including one or more second keywords selected from the first keywords. For each of the categories, one or more images are identified based on the corresponding second keywords. A category/image mapping module generates a category/image mapping table for the content item to map each of the categories to the corresponding identified images. The category/image mapping table is utilized to match the content item to one of the images based on a subsequent category determined in response to a search query.
-
公开(公告)号：US20210403043A1
公开(公告)日：2021-12-30
申请号：US16916470
申请日：2020-06-30
申请人： Baidu USA LLC
发明人： Fan ZHU
IPC分类号： B60W60/00 , B60Q1/44 , B60W30/095 , B60W30/09
摘要： A planned trajectory is analyzed by an L4 emergency braking module, before the trajectory is navigated by the autonomous driving vehicle (ADV). An L4 emergency braking signal is generated in response to an autonomous driving vehicle (ADV) determining that any portion of a planned trajectory of the ADV has a deceleration that is less than −2 m/sec2 and a time to collision with the ADV, by a vehicle following the ADV at a speed Z and a distance Y
-
公开(公告)号：US20210394672A1
公开(公告)日：2021-12-23
申请号：US16905036
申请日：2020-06-18
申请人： Baidu USA LLC
发明人： Fan ZHU
摘要： In one embodiment, a method, apparatus, and system for automatically switching on an emergency light at an autonomous driving vehicle (ADV) is disclosed. A present speed of an ADV at a first time instant is determined. A present deceleration of the ADV at the first time instant is determined. Whether the present speed satisfies a present speed condition and whether the present deceleration satisfies a present deceleration condition at the first time instant are determined. In response to determining that the present speed satisfies the present speed condition and that the present deceleration satisfies the present deceleration condition, whether a recent deceleration history of the ADV satisfies a recent deceleration history condition and whether an expected deceleration of the ADV satisfies an expected deceleration condition are determined. If either condition is satisfied, an emergency light of the ADV is automatically switched on.
-
公开(公告)号：US20210356961A1
公开(公告)日：2021-11-18
申请号：US16875739
申请日：2020-05-15
申请人： Baidu USA LLC
发明人： Fan ZHU
摘要： According to one embodiment, a dynamic parameter server is provided in an ADV to update parameters of an autonomous driving system (ADS) of the ADV in real time without requiring the reboot of the ADS. The dynamic parameter server can obtain new parameters from a configuration file created by users based on their experiences and expectations. Each new parameter is mapped to certain physical conditions. When the ADV encounters the physical conditions mapped to a particular parameter, the dynamic parameter server can broadcast the new parameters to the ADS, which can use the new parameters to control the ADV. The physical conditions can be used as selection factors for the dynamic parameter to determine which ADS parameter to update.
-
公开(公告)号：US20210325439A1
公开(公告)日：2021-10-21
申请号：US16849304
申请日：2020-04-15
申请人： Baidu USA LLC
发明人： Fan ZHU
摘要： According to some embodiments, a method of performing EMC testing of an ADV can be used According to some embodiments, a method of performing EMC testing of an ADV can be used to test how software and hardware components in the ADV are impacted in an indoor EMC testing environment. According to the method, the ADV can be positioned at a fixed spot in the indoor EMC testing environment, and can be driven in an autonomous driving mode for a predetermined period of time. One or more of the autonomous driving modules of the ADV are modified to accommodate the positioning of the ADV at the fixed spot and the indoor EMC testing environment. The ADV can determine if each of a plurality of performance parameters meets its performance metric during the predetermined period of time. If each performance parameters meets its performance metric, the ADV is considered to have passed the EMC testing.
-
-
-
-
-
-
-
-
-
搜索结果
94 条记录 (耗时 0.03 秒)
