Apparatus for estimating vehicle weight and method therefor

An apparatus for estimating a vehicle weight, the apparatus comprising:

• a memory storing computer-executable instructions;
• and
• at least one processor configured to access the memory and execute the instructions;
• wherein the at least one processor is configured to;
• apply a real velocity and real acceleration to a trained real-to-virtual transformation model to obtain a virtual output set at a target time point, the virtual output set including a virtual gradient of a vehicle, a virtual velocity of the vehicle, and virtual longitudinal acceleration of the vehicle;
• apply the virtual output set at the target time point and a real wheel torque at the target time point to a trained mass estimation model to obtain weight information of the vehicle;
• determine a first loss function for training the real-to-virtual transformation model, based on at least one of weight information of the vehicle prior to the target time point, longitudinal acceleration of the vehicle prior to the target time point, a velocity of the vehicle prior to the target time point, or a gradient of the vehicle prior to the target time point, or any combination thereof;
• determine a second loss function for training the mass estimation model, based on weight information of the vehicle prior to the target time point, a ratio between the weight information of the vehicle and a real wheel torque of the vehicle prior to the target time point, and a resistance force of the vehicle prior to the target time point;
• include longitudinal dynamics information in the second loss function in the process of training the mass estimation model;
• and
• predict a maintenance timing suitable for a part influenced by a weight among expendables of the vehicle, which require combined maintenance, using the real-to-virtual transformation model and the mass estimation model;
• wherein the virtual gradient is configured to indicate a gradient of the vehicle in a simulation environment;
• and
• wherein the virtual velocity is configured to indicate a velocity of the vehicle in the simulation environment;
• and
• wherein the virtual longitudinal acceleration is configured to indicate longitudinal acceleration of the vehicle in the simulation environment;
• and
• wherein the real-to-virtual transformation model includes:
• a first sub-model configured to obtain an initial virtual velocity from the real velocity;
• a second sub-model configured to obtain the virtual longitudinal acceleration from the real velocity;
• and
• a third sub-model configured to obtain the virtual gradient from a gradient of the vehicle.