BSG Motor Start Control to Eliminate Vehicle Launch Hysteresis
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Solution Overview
Problem
The existing methods for vehicle driving control using belt-driven starter generators (BSG) result in slow vehicle starting speeds and low control degrees due to power hysteresis issues during the engine starting process.
Innovation Solution
A method and apparatus for vehicle driving control that utilizes a BSG motor to provide a preset driving torque to start the engine without actually starting the engine, thereby avoiding power hysteresis and improving starting speed and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the engine is started using traditional oil injection and ignition processes, then the vehicle can be started, but power hysteresis occurs causing slow starting speed and low control degree
Solution Approach 1:
The patent extracts and removes the problematic oil injection and ignition processes from the starting sequence. By using the BSG motor to directly drive the engine crankshaft without these traditional starting processes, the power hysteresis is eliminated and starting speed is improved.
Solution Approach 2:
The BSG motor performs preliminary action by pre-spinning the engine crankshaft to a predetermined speed before actual engine combustion begins. This preliminary rotation prepares the engine for efficient combustion and eliminates the delay associated with traditional starting processes.
2Ease of operation
If the BSG motor is controlled to start the engine with traditional processes, then the vehicle starts, but the control degree during starting is reduced
Solution Approach 1:
The patent implements dynamic control of the BSG motor during the starting process, continuously adjusting the motor speed and torque based on real-time engine parameters. This dynamic adjustment enhances control degree and allows for optimized starting performance under different conditions.
Solution Approach 2:
The control system incorporates feedback mechanisms that monitor engine parameters during starting and adjust BSG motor output accordingly. This closed-loop control improves the control degree by responding to actual engine conditions rather than following a fixed starting sequence.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed solution enhances vehicle starting speed and control degree by eliminating power hysteresis, allowing for smoother and more efficient vehicle starting without the need to start the engine.
Implementation Method 1
belt-driven starter generator (Belt-Driven Starter Generator, BSG) motor
Data Source
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AI summary
The present disclosure relates to a method and an apparatus for vehicle driving control, a vehicle, a device, a program, and a medium, which relates to the technical field of electronic control and are applied to a vehicle. The vehicle is provided with a BSG motor. The method includes: obtaining a first preset driving torque of the BSG motor after a vehicle starting command is received, and controlling the BSG motor to drive an engine of the vehicle according to the first preset driving torque, in order to start the vehicle. According to the present disclosure, the engine is driven by the BSG motor, so that the vehicle can be controlled to be started without starting the engine, a problem of power hysteresis of the vehicle caused due to an engine starting process is avoided, a vehicle starting speed is increased, and a control degree of starting of the vehicle is improved.