Hybrid Vehicle Control System for Detecting Drive Disablement
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Solution Overview
Problem
Hybrid vehicles lack effective mechanisms to inform drivers of disablement, such as transmission or power electronic component failures, which can prevent the vehicle from running even when the 'system ready' lamp is on, leading to potential unsafe driving conditions.
Innovation Solution
A system that includes power electronic components, an engine, an engine clutch, a transmission, and a control portion that turns off the 'system ready' indication when specific components like the transmission, power electronic components, or engine clutch are out-of-order, ensuring the driver is informed of the vehicle's inability to drive.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the system ready lamp is turned on to indicate the vehicle can run, then the driver is informed of system readiness, but the driver may not be informed of component failures that prevent actual driving
Solution Approach 1:
The control portion continuously monitors the operational status of power electronic components, engine, and transmission, and provides feedback to the system ready indication lamp. When any component is detected as out-of-order, the control portion automatically turns off the lamp to inform the driver of the disablement state, ensuring accurate information feedback about vehicle readiness
Solution Approach 2:
The control portion acts as an intermediary between the vehicle's powertrain components and the driver. It receives status information from sensors monitoring power electronic components, engine, and transmission, processes this information, and communicates the overall vehicle readiness state through the system ready indication lamp, bridging the gap between component status and driver awareness
2Ease of operation
If the vehicle allows driving after system ready is indicated, then the vehicle operates normally, but unsafe driving conditions may occur if components are out-of-order
Solution Approach 1:
The control portion performs preliminary detection of component status before allowing vehicle operation. By monitoring power electronic components, engine, and transmission readiness, and turning off the system ready indication when any component is out-of-order, the system prevents unsafe driving conditions from occurring in the first place, rather than merely responding to problems after they arise
Data Source
AI summary
A system for determining disablement of driving of a hybrid vehicle is disclosed. The system for determining disablement of driving of a hybrid vehicle may include: power electronic components having a battery at which DC electricity is stored, an inverter converting the DC electricity of the battery into AC electricity, and a motor receiving the AC electricity from the inverter and generating driving torque; an engine burning a fuel so as to generate driving torque and being selectively connected to the motor; an engine clutch selectively connecting the engine to the motor; a transmission connected to the motor to receive the driving torque of the motor or the driving torque of the engine; and a control portion controlling operations of the power electronic components, the engine, and the engine clutch, wherein the control portion turns off a system ready indication in a case that driving of the vehicle is disabled.