Hybrid vehicle drive system and method and idle reduction system and method

• US 10,214,199 B2
• Filed: 09/01/2017
• Issued: 02/26/2019
• Est. Priority Date: 07/12/2007
• Status: Active Grant

• Current Assignee: Power Technology Holdings LLC
• Original Assignee: Power Technology Holdings LLC
• Inventors: Dalum, Joseph Thomas, Ambrosio, Joseph Mario
• Primary Examiner(s): Swenson, Brian L
• Application Number:
  US15/694,551
• Publication Number:
  US 20180022338A1
• Time in Patent Office: 543 Days
• CPC Class Codes: B60K 1/02 comprising more than one electric motor
• CPC Class Codes: B60K 17/28 characterised by arrangement, location, or type of power take-off
• CPC Class Codes: B60K 2025/065 the transmission being fluidic, e.g. hydraulic
• CPC Class Codes: B60K 25/00 Auxiliary drives B60K16/00 takes precedence; arrangements of tyre-inflating pumps mounted on vehicles B60C23/10; driving tyre-inflating pumps B60C; driving engine auxiliaries F02B
• CPC Class Codes: B60K 25/06 from the transmission power take-off transmissions having power-take-off B60K17/28
• CPC Class Codes: B60K 6/12 by means of a chargeable fluidic accumulator
• CPC Class Codes: B60K 6/28 characterised by the electric energy storing means, e.g. batteries or capacitors
• CPC Class Codes: B60K 6/442 Series-parallel switching type
• CPC Class Codes: B60K 6/48 Parallel type
• CPC Class Codes: B60L 1/00 Supplying electric power to auxiliary equipment of vehicles circuit arrangements for charging batteries H02J7/00
• CPC Class Codes: B60L 1/003 to auxiliary motors, e.g. for pumps, compressors
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 50/90 using propulsion power supplied by specific means not covered by groups B60L50/10 - B60L50/50, e.g. by direct conversion of thermal nuclear energy into electricity
• CPC Class Codes: B60W 10/06 including control of combustion engines
• CPC Class Codes: B60W 10/08 including control of electric propulsion units, e.g. motors or generators
• CPC Class Codes: B60W 10/10 including control of change-speed gearings
• CPC Class Codes: B60W 10/18 including control of braking systems
• CPC Class Codes: B60W 10/30 including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 20/10 Controlling the power contribution of each of the prime movers to meet required power demand
• CPC Class Codes: B60W 20/20 : Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
• CPC Class Codes: B60W 30/1888 : Control of power take off [PTO]
• CPC Class Codes: B60Y 2200/14 : Trucks; Load vehicles, Busses
• 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 90/16 : Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y10S 903/93 : Conjoint control of different elements
• CPC Class Codes: Y10T 29/49009 : Dynamoelectric machine

Abstract

A hybrid vehicle drive system for a vehicle includes a first prime mover, a first prime mover driven transmission, and a rechargeable power source. The hybrid vehicle drive system further includes an interface between the transmission and the prime mover for coupling to an electric motor. The electric motor can be in direct or indirect mechanical communication with a hydraulic pump. The electric motor can receive power from the prime mover driven transmission through the interface.

Claims

1. A vehicle power drive system comprising:

an internal combustion engine connected through a transmission to drive wheels of a vehicle, the transmission having a power take off (PTO) and PTO output gear;

a drive system connected to said PTO comprising an electric motor, an energy storage system and a control system, the electric motor being coupled to the PTO; and

wherein the energy storage system is coupled to the electric motor, wherein the electric motor provides power to the energy storage system and the control system monitors for an antilock brake condition and adjusts power received by the electric motor in response to anti-lock or traction control events.

2. The vehicle power drive system as in claim 1 wherein the control system eliminates or reduces power provided from the electric motor to the energy storage system in response to 4×

4 or multi-axle activation.

3. The vehicle power drive system of claim 1 wherein the energy storage system comprises a battery pack, a battery charger for charging said battery pack using an outside electric power source, and a battery management system.

4. The vehicle power drive system of claim 1 wherein the control system comprises a dampening function to reduce vibration and gear backlash in the PTO when changing operation of the electric motor, the dampening function monitoring velocity of said electric motor and the PTO output gear and adjusting the velocity of the electric motor, thereby creating a closed-loop feedback loop.

5. The vehicle power drive system of claim 4 wherein said electric motor is a permanent magnet motor providing additional torque during an acceleration mode and more regenerative power in a regenerative braking mode.

6. The vehicle power drive system of claim 4 wherein the electric motor has an auxiliary power take off, and wherein the control system has a park/neutral mode, in which said electric motor recharges a battery pack of said energy storage system, and a fourth, all-electric stationary mode with the internal combustion engine shut down in which the electric motor operates said auxiliary power take off.