US 12,379,027 B2
Gearbox actuator unit and gearbox
Stephan Hahn, Bundorf (DE); Holger Kelpe, Seelze (DE); Michael Günther, Wennigsen (DE); and Hansjörg Kraft, Hannover (DE)
Assigned to ZF Friedrichshafen AG, Friedrichshafen (DE); and ZF CV Systems Global GmbH, Bern (CH)
Filed by ZF Friedrichshafen AG, Friedrichshafen (DE); and ZF CV Systems Global GmbH, Bern (CH)
Filed on Aug. 14, 2023, as Appl. No. 18/233,430.
Claims priority of application No. 10 2022 208 483.7 (DE), filed on Aug. 16, 2022.
Prior Publication US 2024/0060564 A1, Feb. 22, 2024
Int. Cl. F16H 63/30 (2006.01); F16H 57/02 (2012.01); F16H 57/029 (2012.01); F16H 57/04 (2010.01); F16H 63/28 (2006.01); F16H 63/32 (2006.01)
CPC F16H 63/304 (2013.01) [F16H 57/029 (2013.01); F16H 57/0415 (2013.01); F16H 63/28 (2013.01); F16H 63/32 (2013.01); F16H 2057/02026 (2013.01); F16H 2057/02043 (2013.01); F16H 2063/3059 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A gearbox actuator unit (14), configured for installation on a gearbox (10), comprising:
a housing (22),
a control device (24), and
at least one actuator (28, 30),
wherein the housing (22) is sized and shaped for attachment on a gearbox housing (12) and for sealing with the gearbox housing (12),
wherein the control device (24) is electrically connected to the at least one actuator (28, 30) and configured to activate the actuator (28, 30),
wherein the at least one actuator (28, 30) is configured to actuate at least one shift fork (18, 20) of the gearbox (10) and configured for connection to the at least one shift fork (18, 20) of the gearbox (10),
wherein the control device (24) and the at least one actuator (28, 30) are arranged within the housing (22);
wherein the at least one actuator (28,30) includes a pinion (28d, 30d) that passes through at least one opening (44) in the housing (22) and extends beyond the housing (22);
wherein the at least one actuator (28, 30) comprises at least two actuators (28, 30), wherein an engagement length of the pinion of one of the actuators (28, 30) is greater than an engagement length of the pinion of another of the actuators (28, 30).