CHARGING CONTROL DEVICE FOR HYBRID ELECTRIC VEHICLE

Organization Name

Inventor(s)

CHARGING CONTROL DEVICE FOR HYBRID ELECTRIC VEHICLE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18469827 titled 'CHARGING CONTROL DEVICE FOR HYBRID ELECTRIC VEHICLE

Simplified Explanation

The patent application describes a system where the engine torque is reduced when the battery charge falls below a certain level, and the electric motor torque is controlled to recharge the battery to a preset level. This allows for the recovery of the battery from a low charge state.

Engine torque is reduced when battery charge is low
Electric motor torque is controlled to recharge the battery
System helps recover battery from low charge state

Potential Applications

The technology could be applied in electric vehicles, hybrid vehicles, and other battery-powered systems where maintaining battery charge is crucial.

Problems Solved

1. Preventing battery depletion in electric vehicles 2. Ensuring optimal battery performance in hybrid vehicles

Benefits

1. Extended battery life 2. Improved efficiency of electric and hybrid vehicles

Potential Commercial Applications

"Battery Recovery System for Electric and Hybrid Vehicles"

Possible Prior Art

There may be existing systems in electric vehicles that manage battery charge levels, but the specific method described in this patent application may be novel.

Unanswered Questions

How does the system determine the optimal target charge amount for the battery?

The abstract does not provide details on how the preset target charge amount is determined for the battery.

What is the range of the predetermined engine torque stable region?

The abstract does not specify the range within which the engine torque is reduced to maintain stability.

Original Abstract Submitted

When the remaining charge amount of the battery decreases to a predetermined value or less, the engine torque reduction control unit reduces the torque of the engine such that the operating point of the engine falls within a predetermined engine torque stable region. Then, in a state in which the operating point of the engine is within the engine torque stable region, the torque of the electric motor is controlled by the charging control unit so that the actual charge amount by the electric motor becomes a preset target charge amount. This makes it possible to recover the battery from a state in which the charge amount is insufficient.