# US 11,994,404 B2 · Computational system and computational method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,994,404 B2 - Document ID: US11994404B2 - Status: Granted - Kind: B2 - Application number: 17/734,607 - Filed: 2022-05-02 - Published: 2022-12-01 - Granted: 2024-05-28 - Earliest claimed: 2021-05-26 - Assignees: Hitachi, Ltd. - Applicants: Hitachi, Ltd. - Inventors: Kaoru Shibuya; Akihito Akai; Yuji Chiba - Web page: https://patentgrep.com/patent/US11994404B2 ## CPC - G01C 21/3469: {Fuel consumption; Energy use; Emission aspects} - B60W 40/09: Driving style or behaviour - G01C 21/3484: {Personalized, e.g. from learned user behaviour or user-defined profiles} - B60W 2510/081: Speed - G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S) - B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT ## Abstract A computational system estimating an energy consumption of a vehicle operated by a driver, the computational system includes a job progress calculator configured to calculate a job progress that is a delay time from a scheduled time on a simulation, an operation tendency storage configured to store tendency information that is a combination of a driver ID that is an identifier of the driver, the job progress, and an operation tendency of the vehicle, an operation tendency reader configured to read the operation tendency of the driver from the tendency information, using the job progress calculated by the job progress calculator, and the driver ID of the driver who is an computation target and a simulation computer configured to calculate the energy consumption of the vehicle, based on the operation tendency read by the operation tendency reader, with respect to each driver who is the computation target. ## Claims ### Claim 1 A computational system estimating an energy consumption of a vehicle operated by a driver, the computational system comprising: a job progress calculator configured to calculate a job progress that is a delay time from a scheduled time on a simulation; an operation tendency storage configured to store tendency information that is a combination of a driver ID that is an identifier of the driver, the job progress, and an operation tendency of the driver, the operation tendency including at least one of a frequency of a sudden start, in which an acceleration of the vehicle exceeds a first threshold, and a frequency of a sudden stop, in which a deceleration of the vehicle exceeds a second threshold; an operation tendency reader configured to read the operation tendency of the driver from the tendency information, using the job progress calculated by the job progress calculator, and the driver ID of the driver who is a computation target; and a simulation computer configured to calculate the energy consumption of the vehicle, based on the operation tendency read by the operation tendency reader, with respect to each driver who is the computation target. ### Claim 2 (depends on 1) The computational system according to claim 1, further comprising: a collector configured to collect an operation log of the vehicle with respect to each driver; a transportation plan storage configured to store job information with respect to each driver; and a tendency information creator configured to create the tendency information, by calculating the job progress, based on the operation log and the job information, wherein the operation log includes a position, a speed, and an acceleration of the vehicle at each time point, and the job information includes a departure place, an arrival place, and an arrival deadline. ### Claim 3 (depends on 1) The computational system according to claim 1, further comprising a transportation plan storage configured to store job information that indicates a departure place, a destination place, and a scheduled arrival time point at the destination place, with respect to each driver, wherein the job progress calculator calculates the job progress, based on a position of the driver at a certain time point on the simulation, and the job information. ### Claim 4 (depends on 1) The computational system according to claim 1, wherein the tendency information is also combined with a continuous driving time that is a time of continuous driving of the vehicle, and the operation tendency reader reads the operation tendency of the driver from the tendency information, using the job progress, the driver ID, and the continuous driving time. ### Claim 5 (depends on 1) The computational system according to claim 1, wherein the tendency information is also combined with transport information that is information on a transport object transported by the vehicle, and the operation tendency reader reads the operation tendency of the driver from the tendency information, using the job progress, the driver ID, and the transport information. ### Claim 6 (depends on 5) The computational system according to claim 5, wherein the transport information is at least one of a total weight of the vehicle including the transport object, and a type of the transport object. ### Claim 7 (depends on 1) The computational system according to claim 1, wherein the simulation computer calculates the energy consumption of the vehicle, further using at least one of an inclination angle of a road surface, weather, a traffic volume, and a vehicle model. ### Claim 8 A computational method of causing a computer to estimate an energy consumption of a vehicle operated by a driver, the computational method comprising: a job progress calculation step of calculating a job progress that is a delay time from a scheduled time on a simulation; a tendency information reading step of reading tendency information that is a combination of a driver ID that is an identifier of the driver, the job progress, and an operation tendency of the driver, the operation tendency including at least one of a frequency of a sudden start, in which an acceleration of the vehicle exceeds a first threshold, and a frequency of a sudden stop, in which a deceleration of the vehicle exceeds a second threshold; an operation tendency reading step of reading the operation tendency of the driver from the tendency information, using the job progress calculated in the job progress calculation step, and the driver ID of the driver who is an computation target; and a simulation computing step of calculating the energy consumption of the vehicle, based on the operation tendency read in the operation tendency reading step, with respect to each driver who is the computation target.