System, controller and method for maintaining an advanced driver assistance system as active
AssigneeBendix Commercial Vehicle Systems LLC
InventorsHans M Molin, Andreas U Kuehnle, Cathy L Boon, Thomas J Hayes
Life of this patent
Estimating the term…
Abstract
A system and method for assembling and using a map supports advanced driver assistance systems (ADAS) on a host vehicle. The map indicates which roadway segments can support automated driving. The map may also indicate which vehicle sensor signal interpretation and vehicle control algorithms shall be used on those segments. The map may be assembled on a host vehicle, transmitted to a server and collated with maps from other vehicles equipped with ADAS. The host vehicle may download the other maps from the server for use in locations where the driver assistance sensor input from the host vehicle may not be dependable.
Claims13
An advanced driver assistance system for a vehicle comprising:
- a plurality of vehicle environment sensors;
- and
- a controller, the controller having
- control logic for controlling an automated driving mode;
- at least one input for receiving present signals from the plurality of vehicle environment sensors;
- and
- a memory for storing the present signals of the plurality of vehicle environment sensors with a location stamp and a time of day stamp, wherein the control logic
- stores past signals from the plurality of vehicle environment sensors in the memory;
- collates the present signals from the plurality of vehicle environment sensors;
- compares the present signals of the plurality of vehicle environment sensors to a minimum requirement for maintaining the automated driving mode;
- compares the past signals matching the location stamp and time of day stamp to the minimum requirement when the present signals do not meet the minimum requirement;
- and
- maintains the automated driving mode when the past signals in the memory exceed the minimum requirement.
An advanced driver assistance system (ADAS) comprising:
- at least one input to receive a plurality of present sensor signals indicative of a vehicle environment and a driver's maneuvering of the vehicle;
- at least one output to control the vehicle in an automated driving mode;
- a transmitter for transmitting the vehicle's present location and a map of ADAS-capable sections of roadway based on the plurality of present sensor signals and the driver's maneuvering;
- a receiver for receiving a map of ADAS-capable section of roadway based on a plurality of past sensor signals from a remote server based on the present location of the vehicle;
- and
- a controller having;
- a memory to store the present sensor signals as past sensor signals;
- and
- control logic;
- the control logic collates the present sensor signals with the driver's maneuvering of the vehicle;
- creates an ADAS-capable map based on the collating, the map having a location and time of day stamp;
- and transmits control signals to the vehicle to maintain an automated driving mode in response to the vehicle being on a roadway that is ADAS-capable based on the vehicle's present ADAS-capable map and the received ADAS-capable map, wherein the control logic bridges a loss of the present sensor signals by using the received ADAS-capable map so that the automated driving mode is not disabled upon the loss of the present sensor signals.
A method for maintaining an autonomous driving mode on a host vehicle comprising:
- setting the host vehicle in an automated driving mode based on present signals meeting a minimum requirement for maintaining the automated driving mode;
- transmitting control signals to the host vehicle to maintain an autonomous driving mode;
- receiving a map of ADAS-capable roadways from a remote server based on past signals received from the host vehicle at a particular location and a particular time;
- determining based on the ADAS-capable map and the present signals whether to maintain the automated driving mode at the same particular location and at the same particular time;
- disabling the automated driving mode indicating that ADAS will not function at the particular location and at the particular time in response to the ADAS-capable map;
- and
- maintaining the automated driving mode in response to the ADAS-capable map indicating that the automated driving mode can be maintained even when the present signals do not meet the minimum requirement.
Dependencies are inferred from the claim text.