Apparatus and method for providing users with accurate endurance range of a mobile object
A mobile body and equipment technology, applied in the field of navigation systems, can solve the problems of difficult real-time processing, large energy consumption and high calculation performance, and high equipment processing performance requirements, and achieve the effects of reducing calculation burden, accurate battery life, and ensuring real-time performance
Inactive Publication Date: 2016-08-17
HITACHI CHINA RES & DEV CORP
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Problems solved by technology
This known example has the following differences with the present invention: (1) when estimating the cruising distance, this known example calculates the energy consumption of the road branches around the current position of the mobile body one by one and compares them with the remaining energy. When there are many road branches, the energy consumption The amount of calculation is large, the processing performance requirements of the equipment are high, and it is difficult to realize real-time processing
Method used
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Embodiment Construction
[0035] Overall technical scheme of the present invention is as follows:
[0036] First, determine whether the battery life needs to be updated. When judging, it is necessary to refer to the state of the mobile body and external information such as traffic information. The judgment can be to periodically check whether the state of the mobile body and external information has changed, or it can be received when the state of the mobile body or external information changes. Notice. If the judgment result is that the cruising range needs to be updated, the cruising distance estimation is continued, otherwise, no operation is performed. When estimating the cruising distance, the cruising distance is estimated according to the remaining energy of the mobile body and / or the opening of the equipment on the moving body. This cruising distance will be used as the radius of the circle in the rough cruising range estimation, and will also be used for the precise cruising range estimation....
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The invention provides equipment for providing a precise endurance range of a mobile body for a user. The equipment comprises a device used for roughly estimating the cruising distance of the mobile body according to residual energy of the mobile body, a device used for drawing a circle by utilizing the current position of the mobile body as the circle center, utilizing the roughly estimated cruising distance of the mobile body as the radius and setting all or a part of the cross points of links in a map and the circumference of the circle as reference destinations, a device used for determining reference destination paths from the current position of the mobile body to the reference destinations according to attribute information of the links in the map, a device used for comparing the accumulated energy consumption of each link arriving at the reference destination path with the residual energy of the mobile body to determine the energy zero point of the mobile body for each reference destination path, a device used for providing the precise endurance range of the mobile body for the user according to the determined energy zero points of the reference destination paths.
Description
technical field [0001] The present invention relates to the field of navigation systems, in particular to a device and a method for providing a user with the precise cruising range of a mobile body (such as a vehicle), which can provide the user with the precise cruising range of the mobile body according to the current remaining energy of the mobile body. Background technique [0002] For users, it is very important to know the cruising range of the vehicle, which helps to choose the appropriate driving path. At present, most vehicles are equipped with remaining energy indicating devices, such as remaining fuel indicating devices and remaining power indicating devices, etc. These indicating devices obtain the remaining energy information of the vehicle and present it to the user in the form of pointers or numbers. The user understands the remaining energy of the vehicle according to the indicating device, and estimates the cruising range based on the driving experience, so ...
Claims
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IPC IPC(8): G01C21/34G01F9/02
Inventor 张豫鹤王文佳白井启介
Owner HITACHI CHINA RES & DEV CORP