Electric motor driven automotive vehicle having a magnetic particle clutch

• US 4,095,664 A
• Filed: 11/29/1976
• Issued: 06/20/1978
• Est. Priority Date: 11/29/1976
• Status: Expired due to Term

• Current Assignee: George A. Bray
• Original Assignee: George A. Bray
• Inventors: Bray, George A.
• Primary Examiner(s): Mitchell, David M.
• Application Number:
  US05/745,586
• Time in Patent Office: 568 Days
• Field of Search: 180/65 R, 180/65 A, 180/65 C, 180/65 D, 180/65 F, 180/65 E, 318/140, 318/149, 290/16, 290/45, 290/50, 192/21.5
• US Class Current: 180/65.245
• CPC Class Codes: B60K 6/387 Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
• CPC Class Codes: B60K 6/46 Series type
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2220/20 DC electrical machines
• CPC Class Codes: B60L 2240/507 Operating parameters
• CPC Class Codes: B60L 50/13 using AC generators and AC motors
• CPC Class Codes: B60L 50/62 charged by low-power generators primarily intended to support the batteries, e.g. range extenders
• CPC Class Codes: B60L 58/18 of two or more battery modules
• CPC Class Codes: B60L 58/21 having the same nominal voltage
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• CPC Class Codes: Y10S 903/914 Actuated, e.g. engaged or disengaged by electrical, hydraulic or mechanical means

Abstract

A power plant and drive system for an automotive vehicle includes a constant speed 120 volt 3 phase AC motor which is coupled to the drive shaft of the vehicle through a magnetic particle clutch. The 120 volt 3 phase AC motor receives energy from a 120 volt AC alternator which is coupled to the motor through a one to three phase converter and connected in tandem to three 12 V DC alternators. The system further includes a battery driven 12 volt DC motor and a 5 cubic inch gas motor. Some of the energy generated by the 12 volt DC alternators is used to recharge the batteries that power the 12 volt DC motor. In normal operation, the alternators are driven solely by the 12 volt DC motor; however, when the voltage in the batteries becomes lower than 6 volts the alternators are driven solely by the gas motor, thus allowing the batteries to recharge to their normal level. Speed control of the vehicle is achieved by varying the coupling strength of the magnetic particle clutch.

Claims

1. An electric motor power means suitable for boats, cars, and other vehicles, comprising:

(a) a constant speed electric motor of predetermined voltageand current,

(b) an alternator of the same predetermined voltage electrically connected to said constant speed motor

(c) a plurality of rectified alternators of a separately predetermined voltage,

(d) a DC motor coupled to the alternator (b) and to the DC rectified alternators to drive said alternator and said DC rectified alternators

(e) a DC battery means connected to said DC motor wherein the output voltage of the battery means is the same as the voltage of the DC motor and the predetermined voltage of the DC rectified alternators

(f) means to electrically connect the outputs of the DC alternators to the DC battery means to supply electrical energy back to recharge said battery means, and

a drive shaft of said vehicle

a magnetic particle clutch coupled between said constant speed motor and said drive shaft, and

means for varying the coupling strength of the magnetic particle clutch;

whereby variations in the coupling strength will produce variations in the speed of rotation of the drive shaft.

2. The power means of claim 1 futher including a voltage regulating means interposed and connected between the DC rectified alternators and the battery means.

3. The power means of claim 2 and further including an auxilliary gas motor and clutch for selectively coupling the gas motor to said alternator and said DC rectified alternators, and further including a sensing means coupled between the voltage regulator and the battery means for sensing when the voltage in the battery unit is less than the predetermined value, and said sensing means also connected to the gas motor and said clutch for initiating starting of said gas motor when the voltage of the battery means is less than said predetermined value.

4. The power means of claim 3 wherein the vehicle to be powered is an automobile.