US 11,989,031 B2
Method and system for assisting an autonomous motor vehicle
François Colon, Marseilles (FR)
Assigned to VULOG, Nice (FR)
Appl. No. 17/418,999
Filed by VULOG, Nice (FR)
PCT Filed Dec. 24, 2019, PCT No. PCT/FR2019/053294
§ 371(c)(1), (2) Date Jun. 28, 2021,
PCT Pub. No. WO2020/136352, PCT Pub. Date Jul. 2, 2020.
Claims priority of application No. 1874384 (FR), filed on Dec. 28, 2018.
Prior Publication US 2022/0091617 A1, Mar. 24, 2022
Int. Cl. G05D 1/02 (2020.01); G01C 21/28 (2006.01); G05D 1/00 (2006.01)
CPC G05D 1/0276 (2013.01) [G05D 1/0287 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for assisting an autonomous motor vehicle comprising:
using an autonomous motor vehicle equipped with an automatic driving device adapted to decide on piloting actions to carry out on the autonomous motor vehicle in order to make the autonomous motor vehicle travel autonomously on a route,
connecting the automatic driving device to a computer server of a remote control center, which connection is carried out throughout a wireless communication network,
determining, by the computer server, a geographical position of the autonomous motor vehicle,
wherein:
the method comprises a step of predictive detection of a critical event on the route, upstream of the geographical position of the autonomous motor vehicle, which detection leads to the driving device being taken over by an operator at the remote control center so that said operator temporarily takes control of the autonomous motor vehicle remotely and decides on the piloting actions,
the predictive detection of the critical event results in a combined analysis of data, by the computer server, which data include:
data on the state of the followed traffic lanes on the route, upstream of the geographical position of the autonomous motor vehicle, and
data on the traffic conditions on the route, upstream of the geographical position of the autonomous motor vehicle, and
data on the meteorological conditions on the route, upstream of the geographical position of the autonomous motor vehicle, and
data originating from sensors installed on the autonomous motor vehicle,
and wherein the method further comprises:
assigning a risk level to an event detected by the computer server, the risk level being calculated while considering as input data: the data on the state of the traffic lanes, the data on the traffic conditions, the data on the meteorological conditions, the data originating from the sensors,
assignment, by the computer server, of a value to each of the input data,
weighting of the values assigned to the input data so that some of said data have a weight greater than others, the data originating from all or part of the sensors installed on the autonomous motor vehicle being used to vary weighting of the values assigned to the other input data, the other input data comprising at least one of traffic lane data, traffic condition data, and meteorological condition data, and
determining that an event is critical if the risk level assigned thereto exceeds a threshold level and transmitting a take-on instruction that modifies operation of the vehicle.