Patent ID: 11872999
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B

Claim 10:
11. A method for determining a vehicle driving risk comprising:
determining a driving mode and a risk scenario of a vehicle in a time period, wherein a start point of the time period is a first moment, wherein an end point of the time period is a second moment, and wherein the driving mode comprises at least one of a self-driving mode or a manual driving mode;
determining a first location and a movement parameter of the vehicle at the first moment when the vehicle is traveling in the manual driving mode;
predicting a second location of the vehicle at a third moment based on the first location and the movement parameter, wherein the third moment is later than the first moment;
predicting a shadow driving mode of the vehicle from the first location to the second location based on the first location and the second location, wherein the shadow driving mode is another self-driving mode of the vehicle that is predicted and continuously modified based on the first location and the movement parameter of the vehicle in the manual driving mode;
determining, at a current moment, a risk value in the driving mode in the time period based on a risk identification manner corresponding to the risk scenario, wherein the current moment is after the first moment and before the second moment;
determining, at the current moment, ra, rb, and rc based on the risk identification manner corresponding to the risk scenario, wherein ra is a first risk value in the manual driving mode in the time period, wherein rb is a second risk value in the shadow driving mode in the time period, and wherein rc is a third risk value in the self-driving mode based on a preset route in the time period, wherein ra, rb, and rc are determined based on rSG1=f(t)max, wherein rSG1 is ra, rb, or rc in the collision scenario, wherein t∈{tevent, h(tevent,obj)=1}, wherein f(t)=Δv(t)*exp(−min{r0TTC(t),r1THW(t),r2s}), wherein {tevent, h(tevent,obj)=1} represents a time period in which a collision risk occurs, wherein TTC(t) represents a TTC at a t moment, wherein THW(t) represents a THW at the t moment, wherein each of r0, r1, and r2 is a normalized parameter, wherein v is a speed of the vehicle at the t moment, wherein Δv(t) is Δv at the t moment, wherein exp is an exponent comprising a base of a natural constant, and wherein s represents the distance between the vehicle and the collision object; and
controlling the vehicle to travel in the driving mode after determining ra, rb, and rc.