Automated Range-Change Transmission in a Motor Vehicle and Method for Operation of Same

• US 20140150604A1
• Filed: 06/14/2012
• Published: 06/05/2014
• Est. Priority Date: 07/29/2011
• Status: Active Grant

• Current Assignee: ZF Friedrichshafen AG (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Original Assignee: ZF Friedrichshafen AG (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Inventors: Kaltenbach, Johannes
• Granted Patent: US 10,071,622 B2
• Time in Patent Office: Days
• US Class Current: 74/661
• CPC Class Codes: B60K 2006/4816 Electric machine connected or connectable to gearbox internal shaft
• CPC Class Codes: B60K 2006/4825 Electric machine connected or connectable to gearbox input shaft
• CPC Class Codes: B60K 2006/4841 the gear provides shifting between multiple ratios
• CPC Class Codes: B60K 6/20 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
• CPC Class Codes: B60K 6/365 with the gears having orbital motion
• CPC Class Codes: B60K 6/48 Parallel type
• CPC Class Codes: B60K 6/547 the transmission being a stepped gearing
• CPC Class Codes: B60W 10/02 including control of driveline clutches
• 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 10/115 with planetary gears
• 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 20/30 Control strategies involving selection of transmission gear ratio control of change speed gearings, together with other vehicle sub-units B60W10/10; HEV transmission gearing B60K6/36; gearings and control thereof F16H
• CPC Class Codes: B60W 20/40 Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers power-up or power-down of the driveline B60W30/192
• CPC Class Codes: B60W 30/18027 Drive off, accelerating from standstill
• CPC Class Codes: B60W 30/18036 Reversing
• CPC Class Codes: F16H 2200/2005 with one sets of orbital gears
• CPC Class Codes: F16H 3/095 with means for ensuring an even distribution of torque between the countershafts
• CPC Class Codes: F16H 3/097 the input and output shafts being aligned on the same axis
• CPC Class Codes: F16H 3/126 using an electric drive
• CPC Class Codes: F16H 3/725 : with means to change ratio in the mechanical gearing
• CPC Class Codes: F16H 37/046 : with an additional planetary gear train, e.g. creep gear, overdrive
• CPC Class Codes: Y02T 10/62 : Hybrid vehicles
• CPC Class Codes: Y10S 903/902 : Prime movers comprising electrical and internal combustion motors
• CPC Class Codes: Y10T 74/19014 : Plural prime movers selectively coupled to common output
• CPC Class Codes: Y10T 74/19233 : Plurality of counter shafts

Abstract

Automated range-change transmission (CT) of a motor vehicle, with a main transmission (HG) with a lay-shaft design, which features a main shaft (WH) and at least one lay shaft (W_VG1, W_VG2), and with a pre-shift group (GV) drivingly connected upstream on the main transmission (HG), particularly designed as a split group, whereas an input shaft (W_GE) of the range-change transmission (CT) is able to be coupled with an internal combustion engine (VM) of a drive unit of the motor vehicle and an output shaft (W_GA) of the range-change transmission (CT) with an axle drive (AB) of the motor vehicle, whereas an electric motor (EM) of the drive unit formed as a hybrid drive is able to be coupled at the pre-shift group (GV) through a planetary transmission (PG), whereas the electric motor (EM) is able to be coupled to a first element of the planetary transmission (PG), whereas a second element of the planetary transmission (PG) is able to be coupled with an input shaft of the pre-shift group (GV) and thus the input shaft (W_GE) of the range-change transmission (CT), and whereas a third element of the planetary transmission (PG) is able to be coupled with an output shaft of the pre-shift group (GV) and thus an input shaft of the main transmission (HG).

Claims

1. Automated range-change transmission (CT) of a motor vehicle, with a main transmission (HG) with a lay-shaft design, which has a main shaft (WH) and at least one lay shaft (W_VG1, W_VG2), and with a pre-shift group (GV) drivingly connected upstream on the main transmission (HG), particularly designed as a split group, whereas an input shaft (W_GE) of the range-change transmission (CT) is able to be coupled with an internal combustion engine (VM) of a drive unit of the motor vehicle and an output shaft (W_GA) of the range-change transmission (CT) with an axle drive (AB) of the motor vehicle, characterized in that an electric motor (EM) of the drive unit formed as a hybrid drive is able to be coupled at the pre-shift group (GV) through a planetary transmission (PG), whereas the electric motor (EM) is able to be coupled to a first element of the planetary transmission (PG), whereas a second element of the planetary transmission (PG) is able to be coupled with an input shaft of the pre-shift group (GV) and thus the input shaft (W_GE) of the range-change transmission (CT), and whereas a third element of the planetary transmission (PG) is able to be coupled with an output shaft of the pre-shift group (GV) and thus an input shaft of the main transmission (HG).

2-19. -19. (canceled)