B60T13/586

VEHICLE
20230182681 · 2023-06-15 · ·

A vehicle includes: a brake mechanism configured to brake a wheel in accordance with a pressure of a brake fluid; a hydraulic circuit configured to adjust the pressure of the brake fluid and transfer the brake fluid to the brake mechanism; and a controller. The controller includes one or more processors to execute: a torque adjustment process of giving an offset to increase a required driving torque determined based on an operation amount of accelerator of the vehicle in a case where it is determined that the vehicle is in a stolen state; and a brake fluid pressure adjustment process of applying control to the hydraulic circuit to pressurize the brake fluid so as to compensate for an increase in the required driving torque due to the offset.

Axially or radially actuated eddy current brake with integrated friction brake
11674555 · 2023-06-13 · ·

A magnetic brake assembly for use with a wheel rim is described. The brake assembly includes a rotor secured to rotate with the rim and a stator secured to be rotationally stationary relative to the rotor. One of the rotor and stator has an electrically conductive body and the other of the rotor and stator has a magnetic array including a plurality of magnets configured to generate a magnetic flux. An actuator is connected to at least one of the electrically conductive body and magnetic array to selectively effect a brake mode and a non-brake mode. In the brake mode, the magnetic array induces eddy currents in the electrically conductive body to generate a magnetic braking force when the rim rotates above a threshold speed and in the non-brake mode, the induced eddy currents cause a negligible or no magnetic braking force as the rim rotates above the threshold speed.

Control device for vehicle and vehicle
11667200 · 2023-06-06 · ·

A control device for a vehicle includes an operation unit, an operation-unit sensor, a motor, and a driving force controller. The operation-unit sensor is configured to detect an operation-unit operation amount. The operation-unit operation amount is an amount of operation of the operation unit. The motor is capable of generating a negative driving force for decelerating the vehicle. The driving force controller is configured to cause the motor to drive a wheel of the vehicle with the negative driving force on a basis of the operation-unit operation amount, and to derive the negative driving force in accordance with an initial time change. The initial time change represents an amount of change in the operation-unit operation amount per unit time relative to an operation-unit operation amount at an initial position of the operation unit.

Aggregating braking torque during one-pedal drive mode

A vehicle includes a powertrain having an electric machine configured to power driven wheels, an accelerator pedal, and friction brakes. A vehicle controller is programmed to, with the vehicle being in a one-pedal driving mode: in response to a braking torque capacity of the powertrain exceeding a target braking torque that is based on a position of the accelerator pedal, command a torque, that is equal to the target braking torque, from the powertrain such that the vehicle is slowed using the powertrain without application of the friction brakes, and, in response to the braking torque capacity of the powertrain being less than the target braking torque, command torques from the powertrain and the friction brakes such that the target braking torque is satisfied and the vehicle is slowed using the powertrain and the friction brakes.

Control of regenerative braking in an electric or hybrid vehicle
09802491 · 2017-10-31 · ·

A method controls regenerative braking of a vehicle equipped with regenerative brakes and with a separate braking apparatus. The method is designed to generate a regenerative braking setpoint as a function of a braking request signal coming from a driver pedal of the vehicle, according to a first setpoint generation mode. The method includes receiving a flag signal coming from an active safety system of the vehicle, detecting value changes of the received flag signal, when the received flag signal changes value to take a value corresponding to activation of regulation by the active safety system, incrementing a counter value, and comparing the counter with a threshold. When the counter reaches the threshold, a control signal is formed to end the generation of the regenerative braking setpoint according to the first calculation mode and to impose generation of the regenerative braking setpoint according to a second calculation mode.

VEHICLE CONTROL METHOD AND VEHICLE

A vehicle according to the present disclosure includes a brake device and an electronic control unit. The brake device is configured to change a front-rear distribution ratio of braking force with respect to front and rear wheels. The electronic control unit is configured to: control the brake device such that the front-rear distribution ratio is in accordance with a fixed distribution characteristic in which the front-rear distribution ratio is constant regardless of deceleration of the vehicle in at least a part of a first range being a required deceleration range lower than a lower limit value of the deceleration perceivable by a person in the vehicle; and control the brake device such that the front-rear distribution ratio is biased toward the rear wheel than that in the fixed distribution characteristic in a second range in which the deceleration is higher than that in the first range.

Control system and method for controlling a torque generator

The invention relates to a control system for controlling a torque generator of a vehicle. The control system is configured to receive one or more electrical signals indicative of a surface indicator; receive one or more electrical signals indicative of a deceleration demand; select a surface type from a plurality of predetermined surface types based on said one or more electrical signals indicative of a surface indicator; determine a target vehicle deceleration in dependence on the selected surface type; determine, based on said one or more electrical signals indicative of a deceleration demand, a requirement to decelerate the vehicle; and in dependence on determining said requirement, output a control signal to the torque generator. The control signal is configured to cause the torque generator to provide the target vehicle deceleration.

METHOD OF IMPROVING BRAKING PERFORMANCE THROUGH MOTOR TORQUE CONTROL OF VEHICLE
20170297452 · 2017-10-19 ·

A method of improving braking performance through motor torque control of a vehicle includes: determining a relation between a vehicle wheel torque change amount and a driving acceleration change amount prior to a start of braking of the vehicle; calculating a target acceleration that is changed according to a driver's braking request when a driver presses a brake pedal to start the braking of the vehicle; detecting a real acceleration of the vehicle in real-time; comparing the real acceleration with the target acceleration; and compensating for a difference between the real acceleration and the target acceleration by increasing a regenerative braking amount through motor torque control when the real acceleration differs from the target acceleration.

Telemetry device for capturing vehicle environment and operational status history

Described herein are devices, systems, and methods for managing the power consumption of an automotive vehicle, and thereby for optimizing the power consumption of the vehicle. The devices and systems for managing the power consumption of the vehicle typically include power management logic that can calculate an applied power for the vehicle engine based on information provided from the external environment of the vehicle, the operational status of the vehicle, one or more command inputs from a driver, and one or more operational parameters of the vehicle.

Electric vehicle power management system

An apparatus comprising an interface, a memory and a processor. The interface may be configured to receive sensor data samples during operation of a vehicle. The memory may be configured to store the sensor data samples over a number of points in time. The processor may be configured to analyze the sensor data samples stored in the memory to detect a pattern. The processor may be configured to manage an application of brakes of the vehicle in response to the pattern.