JP2009089597A - Optimum energy saving automobile with optimum drive force, drive distribution, linkage, and backed up system in a plurality of drive source systems such as electric automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an energy saving system capable of suppressing battery consumption by selecting out of a plurality of drive sources for optimum travel condition so that power consumption is in optimum mode, intending to extend travel distance and travel hours, being a backup system coping with trouble of power supply and drive source, since the most interested issue of an electric sutomobile whose motive energy and power source are a current battery is a disscharge life of a mounted battery used for travelling. <P>SOLUTION: A plurality of power sources and motive energies of an electric automobile are distributed, a drive source which is optimum for a requested travel state is selected to drive electric automobile, realizing energy saving travel, with a drive power being selected according to machine type and vehicle type. A drive balance is selected according to machine type, vehicle weight, and balance of weight between front wheel and rear wheel as well. The expected trouble of batteries 31 and 41, inverters 32 and 42, and motors M1 and M2 can be backed up with a double power source and drive source. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

      The present invention aims at extending the maximum travel distance and time with an energy saving system for a plurality of drive sources such as an electric vehicle, etc., according to the travel mode of the small (M1, front wheel motor), middle (M2, rear). (Motor for wheel) and large (M1 + M2, 4WD motor) Multiple drive sources of power are used according to the required driving condition to save energy.

      By distributing multiple drive sources such as electric vehicles, a system has been incorporated that enables smooth and shock-free switching and interlocking of drive sources.

By distributing the power source and drive source of electric vehicles, etc., it is a system that can run with the remaining normal power source and drive source in case of emergency such as battery trouble.
Japanese Patent Laid-Open No. 7-15804 (publication date: January 17, 1995).

    Electricity sources such as electric vehicles (batteries are heavier than energy density ratios, gasoline vehicles are compared) and drive power sources (motors) have a limit on the weight of the vehicle including the battery. It is a highly reliable backup system that can be pursued as a system and can handle battery and drive source problems.

The present invention aims at extending the maximum travel distance and time with an energy saving system that distributes a plurality of drive sources such as electric vehicles and selects a drive source suitable for a required driving state. It is a highly reliable system with a built-in backup system of a double power source and a double drive source that can run even when a power source trouble occurs.

      In order to extend the discharge life of batteries such as electric vehicles, multiple drive sources are distributed, and the drive source is selected in accordance with the required driving conditions, but synchronized with encoders 1 and 21 in FIG. Searching for speed, the flywheel 2.2 and 22 can be switched and interlocked smoothly to achieve the best driving.

      By using low-speed driving, energy-saving driving, urban driving, battery low-rate emergency, traffic jams, and other low loads, the low power consumption motor (M1) uses a low consumption motor. The medium power source (M2) uses a medium consumption motor for medium loads during medium speed driving and energy saving, and the high power source (M1 + M2) low + medium consumption motor is driven in conjunction with rapid acceleration and highway driving. It can be used as a power source and can be combined with an optimum energy saving drive source that matches the required driving mode, which makes it possible to configure an optimum energy saving system with the amount of battery consumption.

      A system that distributes multiple drive sources such as electric vehicles, and can select from multiple drive sources that meet the required driving conditions automatically, manually, or in an emergency, and pursue optimal power consumption for those conditions.

      In driving optimal systems such as electric vehicles, manual low-speed / medium-speed / high-speed driving mode, automatic driving mode, energy saving, and emergency driving mode can be selected.

It is a backup system that can run with a normal power source and drive source in an emergency by double the power source and drive source of electric vehicles.

It is explanatory drawing which showed the system of the drive system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Encoder with front-wheel motor 2 Front-wheel flywheel 3 Front-wheel clutch 4 Front-wheel differential gear 5 Front-wheel brake 6 Front-wheel wheel 11 Accel pedal 12 Brake pedal 13 Accelerometer 14 Inclinometer 21 Encoder with rear-wheel motor 22 Rear-wheel flywheel 23 Rear-wheel clutch 24 Rear wheel differential gear 25 Rear wheel brake 26 Rear wheel wheel 31 Rear wheel battery 32 Rear wheel inverter 41 Front wheel battery 42 Front wheel inverter 53 Controller M1 Front wheel motor M2 Rear wheel motor

Claims (4)

    The drive source such as an electric vehicle is distributedly driven by a plurality of drive sources, and the total drive capacity is determined in consideration of the weight of the vehicle body, the required traveling speed, the weight balance of the front and rear wheels, etc. About 40% share, rear wheel drive motor share about 60% of drive capacity, and vice versa, decentralized drive considering low front / rear wheel drive capacity, low speed driving, urban driving, traffic jam, start, suburb driving, high speed This is a drive source system that selects the driving conditions required for road driving, hill driving, energy saving driving mode, etc., from multiple driving sources, automatic, manual, or emergency combination.     The drive system (FIG. 1) of a plurality of drive sources according to claim 1 includes a motor (M1, M2, including a generator) with an encoder (1, 21), a flywheel (2, 22), a clutch (3, 23), and an operating gear. System (4.24), brake (5.25), wheel (6.26).     The drive system (FIG. 1) includes a front wheel battery (31), a rear wheel battery (41), a front wheel inverter (32), a rear wheel inverter (42), and a front wheel motor (M1).・ Rear-wheel motor (M2) ・ Controller (53) double battery ・ Double inverter ・ System with built-in backup featuring double motor. The flywheels 2 and 22 and the encoders 1 and 21 in FIG. 1 of the drive system according to claim 1 are independent of the drive source. It is a part.