B60W2510/105

Systems and methods for limiting engine torque and controlling a clutch

A system of a vehicle includes: a torque request module configured to determine a first engine torque request based on a driver input and to set a second engine torque request to a lesser one of (a) the first engine torque request and (b) an engine torque limit; and a torque limit module configured to, when a vehicle speed is less than a predetermined speed, an accelerator pedal position is greater than a predetermined accelerator pedal position, and a brake torque request for braking of the vehicle is greater than a predetermined torque, set the engine torque limit to less than the first engine torque request.

Vehicle control method and vehicle control system
11390279 · 2022-07-19 · ·

Provided is a vehicle control method that performs basic self-driving control configured to automatically control the travel of a host vehicle based on an intervehicle distance between the host vehicle and a preceding vehicle. When a traffic jam on a travel lane of the host vehicle is detected, low torque travel control configured to cause the host vehicle to travel by a drive torque lower than a drive torque determined based on the basic self-driving control is performed, and when the intervehicle distance exceeds, in the low torque travel control, a predetermined upper limit distance larger than a set during-vehicle-stop intervehicle distance serving as a reference for the start or the stop of the host vehicle in the basic self-driving control, the low torque travel control is switched to the basic self-driving control.

Power shift transmission with electric power assist
11413960 · 2022-08-16 · ·

A power shift transmission includes an input shaft and a gear housing including a gear assembly disposed therein. The gear assembly is driven by the input shaft. The transmission also includes an output shaft rotated by the gear assembly. The transmission also includes an auxiliary shaft extending through a portion of the gear housing. The auxiliary shaft is rotated by an internal combustion engine. The transmission also includes a clutch assembly movable from a disengaged position to an engaged position. The clutch assembly includes a first clutch portion coupled to the input shaft and a second clutch portion coupled to the auxiliary shaft. The second clutch portion transmits rotational force to the first clutch portion only with the clutch assembly in the engaged position. The transmission also includes an electric motor including an electric motor shaft in geared relationship with the first clutch portion.

PREDICTIVE-BASED CONTROL FOR TRANSMISSION SHIFTING
20220242414 · 2022-08-04 ·

A powertrain includes a transmission having an input shaft, an output shaft, and a plurality of clutches engageable in various combinations to establish varying power flow paths between the input and output shafts. A controller is programmed to, responsive to a shift of the transmission: reduce torque capacity of an off-going one of the clutches and increase torque capacity of an oncoming one of the clutches during a torque transfer phase of the shift, and, in response to an inertia phase of the shift, continue to command non-zero torque capacity to the off-going clutch such that the off-going clutch brakes the output shaft throughout an entire duration of the inertia phase.

VEHICLE POWERTRAIN INTEGRATED PREDICTIVE DYNAMIC CONTROL FOR AUTONOMOUS DRIVING
20220242413 · 2022-08-04 ·

Devices, systems, and methods for integrated predictive dynamic control of a vehicle powertrain in an autonomous vehicle are described. An example method for controlling a vehicle includes generating, based on performing an optimization on a blended smooth wheel domain fuel consumption map subject to a modified torque availability constraint, one or more wheel domain control commands, converting the one or more wheel domain control commands to one or more powertrain-executable engine domain control commands, and transmitting the one or more powertrain-executable engine domain control commands to a powertrain of the vehicle, the powertrain configured to operate a plurality of gears, wherein the one or more powertrain-executable engine domain control commands enable the vehicle to track a reference kinematic trajectory associated with a vehicle speed driving plan within a predetermined tolerance.

Predictive-based control for transmission shifting

A powertrain includes a transmission having an input shaft, an output shaft, and a plurality of clutches engageable in various combinations to establish varying power flow paths between the input and output shafts. A controller is programmed to, responsive to a shift of the transmission: reduce torque capacity of an off-going one of the clutches and increase torque capacity of an oncoming one of the clutches during a torque transfer phase of the shift, and, in response to an inertia phase of the shift, continue to command non-zero torque capacity to the off-going clutch such that the off-going clutch brakes the output shaft throughout an entire duration of the inertia phase.

ENERGY SAVING TRACTION AND STABILITY CONTROL
20220250634 · 2022-08-11 ·

Controlling maximum appliable positive and negative torque for a vehicle is provided. Vehicle data indictive of a driver torque request is received. Maximum appliable positive and negative torques for the vehicle are estimated. Responsive to the driver torque request being positive, the driver torque request is limited to the maximum appliable positive torque. Responsive to the driver torque request being negative, the driver torque request is limited to the maximum appliable negative torque.

INTELLIGENT DRIVING PASSIVE PEDAL CONTROL
20220097721 · 2022-03-31 ·

A method for assignment of vehicle control includes receiving route data indicating a route between a starting location of a vehicle and a destination location, and determining an optimal vehicle configuration for the route based on a target vehicle speed and a hybrid torque split. The method further includes receiving a driver requested torque value and determining a passive pedal torque value based on the route data and vehicle powertrain data. The method further includes selectively assigning control of the vehicle to a vehicle system or to a driver of the vehicle based on the driver requested torque value and the passive pedal torque value.

Systems and Methods for Limiting Engine Torque and Controlling a Clutch
20220097674 · 2022-03-31 ·

A system of a vehicle includes: a torque request module configured to determine a first engine torque request based on a driver input and to set a second engine torque request to a lesser one of (a) the first engine torque request and (b) an engine torque limit; and a torque limit module configured to, when a vehicle speed is less than a predetermined speed, an accelerator pedal position is greater than a predetermined accelerator pedal position, and a brake torque request for braking of the vehicle is greater than a predetermined torque, set the engine torque limit to less than the first engine torque request.

OPERATING SOUND ESTIMATION DEVICE FOR VEHICLE ON-BOARD COMPONENT, OPERATING SOUND ESTIMATION METHOD FOR VEHICLE ON-BOARD COMPONENT, AND MEMORY MEDIUM

An operating noise estimation device for a vehicle on-board component, an operating sound estimation method for a vehicle on-board component, and a memory medium are provided. The vehicle on-board component is operated by rotation that is output by a drive source of a vehicle. One of an independently-operating sound index value and a coupling-associated operating sound index value is an input-side index value, and the other one is an output-side index value. A neural network is trained using, for training data, a measurement value of the independently-operating sound index value and a measurement value of the coupling-associated operating sound index value for an individual vehicle on-board component. The execution device estimates, using the trained neural network, a value of the output-side index value of the vehicle on-board component in which the input-side index value is a specified value.