Update of digital maps and position-finding
First Claim
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1. A control system in a vehicle, said control system comprising:
- a first controller including a first processor in the vehicle for storing navigation map data in a first storage memory device;
a navigation monitor controlled by the first controller for displaying information to a driver of the vehicle; and
a second controller connected to a vehicle data bus, the second controller including a second processor in the vehicle for storing update data in a second storage memory device separately from the navigation map data stored in the first storage memory device, and for receiving the navigation map data from the first processor of the first controller;
wherein the second processor of the second controller;
generates updated navigation map data based on the navigation map data received from the first processor of the first controller and the update data stored in the second storage memory device,stores the updated navigation map data separately from the navigation map data, andtransmits the stored updated navigation map data to;
1) a driver assistance system connected to the vehicle data bus and physically separate from the navigation monitor, where the updated navigation map data is used by the driver assistance system to control at least one of antilock braking system (ABS), electronic stability program (ESP), traction control system (TCS) and electronic differential lock (EDL), and2) the navigation monitor via the first controller.
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Abstract
A control system for a vehicle which has a first controller for storing navigation map data and a separate second controller for storing update data. The navigation map data are updated outside of the first controller. The first controller or at least the navigation system is designed to perform map matching and to ascertain a possible location area for the vehicle on the basis of an evaluation of a travel history for a travel angle, or other measurement data which characterize the movement or the location of the vehicle.
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Citations
19 Claims
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1. A control system in a vehicle, said control system comprising:
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a first controller including a first processor in the vehicle for storing navigation map data in a first storage memory device; a navigation monitor controlled by the first controller for displaying information to a driver of the vehicle; and a second controller connected to a vehicle data bus, the second controller including a second processor in the vehicle for storing update data in a second storage memory device separately from the navigation map data stored in the first storage memory device, and for receiving the navigation map data from the first processor of the first controller; wherein the second processor of the second controller; generates updated navigation map data based on the navigation map data received from the first processor of the first controller and the update data stored in the second storage memory device, stores the updated navigation map data separately from the navigation map data, and transmits the stored updated navigation map data to; 1) a driver assistance system connected to the vehicle data bus and physically separate from the navigation monitor, where the updated navigation map data is used by the driver assistance system to control at least one of antilock braking system (ABS), electronic stability program (ESP), traction control system (TCS) and electronic differential lock (EDL), and 2) the navigation monitor via the first controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for updating a navigation map in a vehicle, said method comprising the following steps:
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storing, by a first processor of a first controller in the vehicle, navigation map data in a first storage memory device; controlling, by the first controller, a navigation monitor for displaying information to a driver of the vehicle; storing, by a second processor of a second controller connected to a vehicle data bus in the vehicle, update data in a second storage memory device separate from the navigation map data stored in the first storage memory device; receiving, by the second processor of the second controller, navigation map data transmitted from the first processor of the first controller; generating, by the second processor of the second controller, updated navigation map data based on the navigation map data received from the first processor of the first controller and the update data stored in the second storage memory device; storing, by the second processor of the second controller, the updated navigation map data separately from the navigation map data; and transmitting, by the second processor of the second controller, the stored updated navigation map data to; 1) a driver assistance system connected to the vehicle data bus and physically separate from the navigation monitor, where the updated navigation map data is used by the driver assistance system to control at least one of antilock braking system (ABS), electronic stability program (ESP), traction control system (TCS) and electronic differential lock (EDL), and 2) the navigation monitor via the first controller. - View Dependent Claims (16, 17)
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18. A computer program product which, when executed on a processor in a vehicle, instructs the processor to perform the following steps:
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storing, by a first processor of a first controller in the vehicle, navigation map data in a first storage memory device; controlling, by the first controller, a navigation monitor for displaying information to a driver of the vehicle; storing, by a second processor of a second controller connected to a vehicle data bus in the vehicle, update data in a second storage memory device separately from the navigation map data stored in the first storage memory device; receiving, by the second processor of the second controller, navigation map data transmitted from the first processor of the first controller; generating, by the second processor of the second controller, updated navigation map data based on the navigation map data received from the first processor of the first controller and the update data stored in the second storage memory device; storing, by the second processor of the second controller, the updated navigation map data separately from the navigation map data; and transmitting, by the second processor of the second controller, the stored updated navigation map data to; 1) a driver assistance system connected to the vehicle data bus and physically separate from the navigation monitor, where the updated navigation map data is used by the driver assistance system to control at least one of antilock braking system (ABS), electronic stability program (ESP), traction control system (TCS) and electronic differential lock (EDL), and 2) the navigation monitor via the first controller.
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19. A non-transitory computer-readable medium which stores a computer program product which, when executed on a processor in a vehicle, instructs the processor to perform the following steps:
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storing, by a first processor of a first controller in the vehicle, navigation map data in a first storage memory device; controlling, by the first controller, a navigation monitor for displaying information to a driver of the vehicle; storing, by a second processor of a second controller connected to a vehicle data bus in the vehicle, update data in a second storage memory device separately from the navigation map data stored in the first storage memory device; receiving, by the second processor of the second controller, navigation map data transmitted from the first processor of the first controller; generating, by the second processor of the second controller, updated navigation map data based on the navigation map data received from the first processor of the first controller and the update data stored in the second storage memory device; storing, by the second processor of the second controller, the updated navigation map data separately from the navigation map data; and transmitting, by the second processor of the second controller, the stored updated navigation map data to; 1) a driver assistance system connected to the vehicle data bus and physically separate from the navigation monitor, where the updated navigation map data is used by the driver assistance system to control at least one of antilock braking system (ABS), electronic stability program (ESP), traction control system (TCS) and electronic differential lock (EDL), and 2) the navigation monitor via the first controller.
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Specification