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Patent Agency Ranking
公开(公告)号：US11565750B2
公开(公告)日：2023-01-31
申请号：US16699990
申请日：2019-12-02
Applicant: MTD PRODUCTS INC
Inventor： Her-Jye Chang , Aaron Smith , Jay E. Maggard
Abstract: A system and method for differential traction drive and steering axis coordination for an autonomous mower or other turf device includes initiating a steering motion based on determining a target forward speed and a steering rotational speed, calculating a left wheel speed and a right wheel speed, and applying the left and right wheel speeds, wherein the steering rotational speed is driven by a steering motor and the traction wheels associated with the autonomous mower, and the left and right wheel speeds are based on the target forward speed, a distance from a steering axle to the center of the respective wheel, and the steering rotational speed.
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公开(公告)号：US11457560B2
公开(公告)日：2022-10-04
申请号：US16778831
申请日：2020-01-31
Applicant: MTD PRODUCTS INC
Inventor： Aaron Smith , Kevin Meister , Jay E. Maggard
Abstract: A removably attached operator control unit for controlling operation of an outdoor power equipment machine includes an operator control unit housing, a first joystick and a second joystick extending from an upper housing portion, the first and second joysticks being configured to communicate control actions to a control circuit of the operator control unit, and at least one switch configured to communicate control actions to the control circuit, wherein the control circuit is operable to receive control actions resulting from actuations of the joysticks, and switch and to communicate utilizing an interface arranged between the operator control unit and the outdoor power equipment machine, and when secured to the outdoor power equipment machine, the operator control unit is located at a height that is within about an arm's length or less of an operator standing immediately adjacent to the outdoor power equipment machine.
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公开(公告)号：US20200245550A1
公开(公告)日：2020-08-06
申请号：US16778831
申请日：2020-01-31
Applicant: MTD PRODUCTS INC
Inventor： Aaron Smith , Kevin Meister , Jay E. Maggard
Abstract: An removably attached operator control unit for controlling operation of an outdoor power equipment machine includes an operator control unit housing, a first joystick and a second joystick extending from an upper housing portion, the first and second joysticks being configured to communicate control actions to a control circuit of the operator control unit, and at least one switch configured to communicate control actions to the control circuit, wherein the control circuit is operable to receive control actions resulting from actuations of the joysticks, and switch and to communicate utilizing an interface arranged between the operator control unit and the outdoor power equipment machine, and when secured to the outdoor power equipment machine, the operator control unit is located at a height that is within about an arm's length or less of an operator standing immediately adjacent to the outdoor power equipment machine.
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公开(公告)号：US20200172166A1
公开(公告)日：2020-06-04
申请号：US16699990
申请日：2019-12-02
Applicant: MTD PRODUCTS INC
Inventor： Her-Jye Chang , Aaron Smith , Jay E. Maggard
Abstract: A system and method for differential traction drive and steering axis coordination for an autonomous mower or other turf device includes initiating a steering motion based on determining a target forward speed and a steering rotational speed, calculating a left wheel speed and a right wheel speed, and applying the left and right wheel speeds, wherein the steering rotational speed is driven by a steering motor and the traction wheels associated with the autonomous mower, and the left and right wheel speeds are based on the target forward speed, a distance from a steering axle to the center of the respective wheel, and the steering rotational speed.
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公开(公告)号：US20230174154A1
公开(公告)日：2023-06-08
申请号：US18103114
申请日：2023-01-30
Applicant: MTD PRODUCTS INC
Inventor： Her-Jye Chang , Aaron Smith , Jay E. Maggard
CPC classification number: B62D11/10 , A01D34/008 , B60W10/20 , B62D1/283 , B62D6/002 , G05D1/02 , B60W2300/15
Abstract: A system and method for differential traction drive and steering axis coordination for an autonomous mower or other turf device includes initiating a steering motion based on determining a target forward speed and a steering rotational speed, calculating a left wheel speed and a right wheel speed, and applying the left and right wheel speeds, wherein the steering rotational speed is driven by a steering motor and the traction wheels associated with the autonomous mower, and the left and right wheel speeds are based on the target forward speed, a distance from a steering axle to the center of the respective wheel, and the steering rotational speed.
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