Vehicle and method for controlling vehicle
A vehicle and controller technology, applied in vehicle position/route/altitude control, control/regulation system, non-electric variable control, etc., to reduce network traffic and reduce interference
Active Publication Date: 2020-10-16
MITSUBISHI ELECTRIC CORP
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However, various position estimation methods can also have hard-to-resolve ambiguities, see for example US2017-0254901
Method used
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[0040] figure 1 A schematic diagram of a vehicle 100 participating in time-sensitive networking and performing silent clock synchronization and location determination is shown, according to some embodiments. As used herein, vehicle 100 may be any type of wheeled vehicle, such as a passenger car, bus, or cruiser. Additionally, vehicle 100 may be an autonomous or semi-autonomous vehicle. Vehicle 100 includes a controller 101 to control the operation of at least one component of the vehicle. Examples of controllable components of the vehicle 100 include a steering system 102, a braking system 103, a navigation system 104, and the like. In one embodiment, steering system 102 is controlled by controller 101 . Additionally, or alternatively, steering system 102 may be controlled by a driver of vehicle 100 .
[0041] The vehicle 100 includes a clock 105 for providing timing and / or clocking to synchronize the operation of components of the vehicle, and a memory 106 for storing syn...
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A vehicle includes a controller to control an operation of at least one component of the vehicle, a clock to synchronize the operation of the component of the vehicle, a memory to store a clock offsetto the clock of the vehicle to synchronize the operation of the component of the vehicle, and a receiver to receive a set of heartbeat messages from a set of neighboring vehicles, each heartbeat message received from a neighboring vehicle includes a time of transmission of the heartbeat message, a location of the neighboring vehicle and a velocity of the neighboring vehicle. The receiver receiveseach heartbeat message at a corresponding receipt time measured using the clock of the vehicle. The vehicle also includes a processor to update the clock offset stored in the memory in response to determining concurrently an unknown clock offset and an unknown location of the vehicle at a particular time by comparing distances traveled by light between the times of the transmission of the heartbeat messages and corresponding receipt times adjusted with the unknown clock offset with distances between the vehicle at the unknown location and the locations of the neighboring vehicles retrieved from the heartbeat messages.
Description
technical field [0001] The present invention relates generally to wireless communication in a vehicle communication network, and more particularly to clock synchronization of vehicles. Background technique [0002] "Vehicle-to-Vehicle (V2V)" is an automotive technology designed to allow cars to "talk" to each other. V2V communication enables vehicle communication systems and / or networks, where vehicles and roadside units are communication nodes, providing information to each other, such as safety warnings and traffic information. Vehicle communication systems can effectively avoid accidents, autonomous teaming and traffic jams. However, those applications rely on time sensitivity in the vehicular communication network, which requires synchronization of the clocks of the vehicles forming the vehicular communication network. This synchronization is usually done based on a Global Navigation Satellite System (GNSS) clock. [0003] GNSS is a satellite system that can be used t...
Claims
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IPC IPC(8): H04W56/00G01S5/02H04W84/18
CPCH04W56/0025H04W84/18G01S5/0289G01S5/0284G01S19/48G01S19/51G05D1/0285G05D1/0088G05D1/0291G05D1/0221G06F1/12G01S19/23G01S19/07
Inventor 郭建林菲利普·奥尔利克
Owner MITSUBISHI ELECTRIC CORP