Abstract: A method for controlling a drive unit of a motor vehicle include acquiring a speed instruction, measuring the speed of the motor vehicle, and computing a control instruction for the drive unit on the basis of the measured speed and of the speed instruction. When the motor vehicle is moving forwards and should be stopped, the speed instruction is determined so as to be strictly less than zero.

Abstract: A method for estimating the speed of a motor vehicle includes defining a first speed threshold that corresponds to a minimum speed value supplied by a vehicle wheel angular speed sensor, defining a second speed threshold that is greater than the first, estimating low speed values when the vehicle is running below the first speed threshold by using an estimation method of adaptive filtered type, measuring high speed values when the vehicle is running above the second speed threshold by using vehicle speed values supplied by the wheel angular speed sensor, and in the intermediate zone between the first and second speed thresholds, mixing high speed with low speed.

Abstract: A device for controlling, in real time, the trajectory of an autonomous vehicle includes a control module which produces, in real time, from a state vector at each point in time, a first steering command in order to stabilize the trajectory of the vehicle relative to a vehicle path. The device includes an anticipation module which generates a variable representative of a meta-vector of deviations for each predicted position of the vehicle at points in time resulting in a given quantity at the current point in time and of the state vector at the current point in time. The control module produces the first steering command by quadratic optimization of a relationship between the generated representative variable and a meta-vector of successive steering commands for each predicted position of the vehicle at points in time resulting in a given quantity at the current point in time.

Abstract: A method secures a host vehicle circulating on a traffic lane of a road infrastructure including at least one lane adjacent to the traffic lane. The securing method includes, for each adjacent lane: detecting a plurality of vehicles present on the adjacent lane, including an estimate of at least one information item relating to each detected vehicle, including the speed; determining, with the detected vehicles forming a flow of vehicles, a value representing the speed of the flow on the adjacent lane, for example, the average speed; comparing the speed of the host vehicle with the value representing the speed of the flow of vehicles on the adjacent lane; and, if the speed of the host vehicle is greater than a predetermined threshold at the value representing the speed of the flow of vehicles on the adjacent lane, detecting a hazardous situation for the host vehicle.

Abstract: A device for controlling, in real time, the trajectory of an autonomous vehicle includes a control module which produces, in real time, from a state vector at each point in time, a first steering command in order to stabilize the trajectory of the vehicle relative to a vehicle path. The device includes an anticipation module which generates a variable representative of a meta-vector of deviations for each predicted position of the vehicle at points in time resulting in a given quantity at the current point in time and of the state vector at the current point in time. The control module produces the first steering command by quadratic optimization of a relationship between the generated representative variable and a meta-vector of successive steering commands for each predicted position of the vehicle at points in time resulting in a given quantity at the current point in time.