# US 11,299,048 B2 · Motor vehicle with simulator of performance of a mechanical gearbox > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,299,048 B2 - Document ID: US11299048B2 - Status: Granted - Kind: B2 - Application number: 16/327,442 - Filed: 2017-09-26 - Published: 2021-10-07 - Granted: 2022-04-12 - Earliest claimed: 2016-09-27 - Assignees: Solaredge Technologies Ltd. - Applicants: I.E.T. S.p.A. - Inventors: Samuele Mazzini - Web page: https://patentgrep.com/patent/US11299048B2 ## CPC - B60L 7/12: for vehicles propelled by DC motors - B60L 15/20: for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed - B60L 7/14: for vehicles propelled by AC motors - B60L 15/2009: {for braking} - B60L 15/2054: {by controlling transmissions or clutches} - B60L 2200/22: Microcars, e.g. golf cars - B60L 2240/12: Speed - B60L 2240/421: Speed - B60L 2240/423: Torque - B60L 2240/48: related to transmissions - B60L 2250/24: by lever actuation - B60L 2260/30: Engine braking emulation - Y02T 10/64: Electric machine technologies in electromobility - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A vehicle having a motor with a transmission, provided with a fixed gear ratio, to a propelling unit includes a virtual gearbox including a microprocessor, operatively interfaced with the motor and programmed to manage and check the generation of motor driving torque, limiting, at the motor output, a maximum angular velocity and a maximum torque which are variable with a predetermined law. ## Claims ### Claim 1 A vehicle comprising: an electric motor; a propelling unit; a transmission with a fixed gear ratio connecting the electric motor to the propelling unit; and a virtual gearbox comprising a microprocessor, operatively interfaced with the electric motor and programmed to: manage and check generation of a motor driving torque; and limit, at an output of the electric motor, a maximum angular velocity and a maximum torque of the electric motor, wherein the maximum angular velocity and the maximum torque are variable with a predetermined law in accordance with a speed of the vehicle and a virtual gear of the vehicle, wherein the virtual gear simulates multiple gear ratios of a mechanical gearbox, programmable as desired by a user. ### Claim 2 (depends on 1) The vehicle according to claim 1, wherein the maximum torque and the maximum angular velocity are variable while keeping a power from the electric motor constant. ### Claim 3 (depends on 1) The vehicle according to claim 1, wherein the microprocessor is configured to manage operating parameters of the electric motor relating to generating a counter-driving power. ### Claim 4 (depends on 3) The vehicle according to claim 3, wherein the counter-driving power has a variable intensity that varies according to a current state of the virtual gearbox. ### Claim 5 (depends on 3) The vehicle according to claim 3, wherein the counter-driving power is used for vehicle braking. ### Claim 6 (depends on 3) The vehicle according to claim 3, wherein the counter-driving power simulates downshifting. ### Claim 7 (depends on 3) The vehicle according to claim 3, wherein the counter-driving power simulates engine braking caused by intrinsic friction of an internal combustion engine. ### Claim 8 (depends on 1) The vehicle according to claim 1, wherein parameters associated with the motor driving torque are managed by the microprocessor according to preset virtual operating conditions so as to simulate a law of progression during acceleration of a real vehicle having the mechanical gearbox with multiple gear ratios. ### Claim 9 (depends on 1) The vehicle according to claim 1, wherein the microprocessor manages operating parameters of the electric motor relating to simulating an engagement and a disengagement of a mechanical clutch. ### Claim 10 (depends on 1) The vehicle according to claim 1, further comprising a sound reproducing system configured to reproduce harmonized sounds depending on instantaneous conditions of the electric motor that correspond to a sound spectrum of a real internal combustion engine in a same condition. ### Claim 11 (depends on 1) The vehicle according to claim 1, wherein the maximum torque and the maximum angular velocity are variable according to separate gear ratios. ### Claim 12 (depends on 1) The vehicle according to claim 1, wherein the maximum torque and the maximum angular velocity are variable according to a continuously modulatable gear ratio. ### Claim 13 (depends on 1) The vehicle according to claim 1, wherein the propelling unit includes wheels configured to move the vehicle. ### Claim 14 (depends on 1) The vehicle according to claim 1, further comprising a selecting system configured to select a virtual gearbox ratio of the maximum torque and the maximum angular velocity as an input of the transmission. ### Claim 15 (depends on 14) The vehicle according to claim 14, wherein the selecting system is configured to be activated by an automatic command. ### Claim 16 (depends on 14) The vehicle according to claim 14, wherein the selecting system is configured to be activated with a deliberate command by a vehicle driver.