Patent classifications
B60W2710/08
Vehicle, vehicle controller, vehicle control method, and medium storing vehicle control program
A vehicle includes a detection section and a automated drive controller. The detection section detects actual behavior of the vehicle. The automated drive controller generates a automated drive action plan for the vehicle, issues an instruction relating to behavior of the vehicle based on the generated action plan to a drive source controller that controls a drive source of the vehicle, and compares predicted behavior of the vehicle predicted based on the issued instruction and actual behavior of the vehicle detected by the detection section. In cases where the predicted behavior of the vehicle and the actual behavior of the vehicle detected by the detection section differ from each other by more than a preset range, the automated drive controller issues an instruction to decelerate the vehicle to a brake device of the vehicle.
Vehicle control system, motor drive controller, and management controller
A vehicle control system includes electronic controllers and first and second communications networks. The electronic controllers control a vehicle including an internal combustion engine and a drive motor. The electronic controllers include a management controller to manage travel control of the vehicle and a motor drive controller to control the drive motor. The first and second communications networks connect the electronic controllers together. The electronic controllers communicate via the first and second communications networks. The motor drive controller is configured to stop the drive motor when it is determined that a fault has occurred in the first communications network and configured to transmit information indicating that the fault has occurred in the first communications network to the management controller via the second communications network. The management controller is configured to control the electronic controllers not to communicate via the first communications network in response to the information.
Control of torque transmitted to the driving wheel of a hybrid motor vehicle
A method for controlling a mechanical torque transmitted to a driving wheel of a hybrid motor vehicle includes dividing a stroke of a vehicle acceleration pedal at a variable neutral point position into a first braking-adjustment stroke and a second acceleration-adjustment stroke, determining, within the first braking-adjustment stroke in which an electric motor of the vehicle operates as a generator, a regenerative braking torque setpoint for the electric motor based on a depression of the accelerator pedal and based on of a value of maximum energy recovery torque established based on a first function stored in a memory, and providing a value of maximum recovery torque depending on a vehicle speed. The first function assumes a value of substantially zero for an upper limit speed corresponding to the vehicle speed at the moment of coupling and decoupling of the electric motor by a connection device of the vehicle.
Method and Device for Operating a Hybrid Vehicle Having an Electrical Energy Store, an Electric Motor and an Internal Combustion Engine
A method for operating a hybrid vehicle having an electrical energy store, an electric drive and an internal combustion engine, includes activating, by a driver of the hybrid vehicle, a battery control mode by actuating a defined operator control element. A special drive operating strategy for the internal combustion engine is triggered in the battery control mode with the electric drive switched off. An increased charging gradient is then obtained by the special drive operating strategy if a current state of charge of the electrical energy store is below one of a desired state of charge or a lower tolerance threshold with respect to the desired state of charge.
Device and method for controlling motor output of a hybrid vehicle
A hybrid vehicle control device for controlling a hybrid vehicle with an engine and an electric motor as drive sources of the vehicle includes a high-load road travel determination unit configured to determine whether or not the vehicle is traveling on a high running resistance road surface on which a predetermined vehicle acceleration is unobtainable only by an output of the engine, and a motor output setting unit configured to set an output of the electric motor. If the vehicle is determined to be traveling on the high running resistance road surface by the high-load road travel determination unit, the motor output setting unit limits the output of the electric motor when a vehicle speed reaches a predetermined vehicle speed.
Drive System for a Hybrid Vehicle and Method for Operating Said System
A drive system for a hybrid vehicle and a method of operation of the drive system are provided. The drive system includes an internal combustion engine having a shaft, a vehicle transmission having a transmission input shaft and an output shaft, a transmission clutch between the transmission input and output shafts, an inertia-mass drive unit arranged between the internal combustion engine shaft and the transmission input shaft, a first clutch between the internal combustion engine shaft and inertia-mass drive unit and a second clutch between the inertia-mass drive unit and the transmission input shaft; and an electrical machine torque-transmittingly connected to the transmission input shaft. The inertia-mass drive unit may include rotational oscillation reduction device. Operation of the first, second and transmission clutches in coordination with electric motor and engine operation provides multiple operating modes while minimizing operator disturbance during transitions between engine deactivated and activated states.
Adaptive power supply for electric cars
An electric car draws lots of power that needs to be on board the moving vehicle. An adaptive power supply can combine a variety of sources of electrical energywhich may include an internal combustion engineand use those different sources to efficiently produce the electrical power required. An adaptive power supply provides optimal performance by sensing changing conditions, often hundreds of times per second, and then adapting itself to those conditions in order to optimize efficiency at each particular instant during a car's operation. Those conditions may include changes in user inputs, machine operating conditions, and machine operating parameters. Having multiple sources of electrical power allows effective control of more independent power parameters, enabling greater freedom to adapt to optimize efficiency. That gives adaptive power supplies that are cheaper, smaller, lighter, more powerful, and more efficient than conventional designs.
Automatic braking system and method and vehicle
The invention provides an automatic braking system and method and a vehicle. The automatic braking method comprises: entering an automatic braking process when a vehicle speed is less than a predetermined speed threshold value and a driver completely releases an accelerator pedal, wherein the automatic braking process comprises: detecting surrounding information by a sensing module; determining a target stop position based on the surrounding information, and determining a braking deceleration based on the target stop position; adjusting a motor and a braking system to slow down a vehicle at the predetermined braking deceleration and to stop the vehicle at the target stop position; and automatically activate an autohold system upon the vehicle stopping at the target stop position. The method and device according to embodiments of the invention can enable completely automatic braking and holding. The method and device according to embodiments of the invention can enable completely automatic braking and holding.
Vehicle control device
A vehicle control device is configured to cause a vehicle to travel in a first mode when an enlargement mode is set, a driving force required for traveling of the vehicle is less than a value, and a capacity of a power storage is equal to or more than a first threshold, operate an internal combustion engine to cause the vehicle to travel in a second mode in response to the driving force becoming equal to or larger than the value when the enlargement mode is set and the vehicle is caused to travel in the first mode, and continue the enlargement mode when the capacity at a time when the driving force becomes equal to or more than the value is equal to or larger than a second threshold larger than the first threshold, and cancel the enlargement mode when the capacity is less than the second threshold.
Controller of hybrid system
A controller of a hybrid system including an internal combustion engine and a motor generator connected to each other via a belt includes processing circuitry configured to execute a power generation process that applies a load to the engine by controlling the motor generator to generate power when a first execution condition of an idling stop is satisfied, a slip rate calculation process that calculates a slip rate of the belt based on a rotational speed of the engine and a rotational speed of the motor generator while the power generation process is being executed, a determination process that determines whether or not a second execution condition of the idling stop is satisfied after waiting until a predetermined period elapses, when the slip rate is equal to or more than a threshold, and an idling stop process, when determining that the second execution condition is satisfied.