Husqvarna Ab

Martin Larsén

Rajinder Mehra

Patrik Jägenstedt

Mikael Willgert

Lars Dernebo

Anders Mattsson

Stefan Grufman

Stefan Stark

Christian Bylund

Tobias Nyberg

Niklas Sarius

Pär-Ola Svensson

Ted Wolfram

Christoph Schiedt

Henric Isén

Mattias Connysson

Åke Cederborn

Mikael Alexiusson

Peter Lameli

Sören Kahl

Per Norén

Sven Wietelmann

A hand-held multi-tool device () comprising a driving unit () and being arranged to carry one of a plurality of replaceable tool heads () to be driven by the driving unit (), the hand-held multi-tool device () further comprising a controller () configured to: determine a baseline inertial characteristic of the tool head currently being driven by the driving unit; determine an active inertial characteristic of said tool head; and determine a tool type for the tool head () based on the active inertial characteristic and the baseline inertial characteristic.

Tool detection in hand-held power tools

A power tool () is disclosed comprising a tool (), a power source () arranged to power the tool (), a throttle lever (), a circuit board (), and a human machine interface () comprising components () arranged on the circuit board (). The power tool () further comprises a magnet () operably connected to the throttle lever (), and a sensor arrangement () configured to sense the intensity of the magnetic field of the magnet (). The sensor arrangement () is arranged on the circuit board ().

Hand held power tool with a human machine interface

A battery pack may include a plurality of battery cells, a cell retainer and a heat exchanger assembly. The cell retainer may define a plurality of cell reception slots configured to retain respective ones of the battery cells. The cell retainer may define an enclosure that fixes the battery cells and is not penetrated by any cooling apparatus. The cell retainer may be in thermal communication with the battery cells to transfer heat away from the battery cells. The heat exchanger assembly may be in thermal communication with the cell retainer and external to the cell retainer to at least passively transfer heat away from the cell retainer while the battery pack is operated in a discharge mode. The cell retainer may include a thermally conductive material capable of transferring heat to the heat exchanger assembly and also storing at least some of the heat.

Apparatus for providing battery pack cooling

An apparatus () may include a working assembly () configured to perform a work function responsive to operation of the working assembly, an electric motor () that powers the working assembly, a power source () configured to selectively power the electric motor, a control circuitry () for controlling operation of the electric motor, and a brake function () configured to selectively apply braking to the electric motor responsive to a brake initiation event. The brake function may be configured to apply the braking by short-circuiting motor phase windings of the electric motor without requiring an external power supply during application of the braking.

Failsafe hardware brake mechanism for outdoor power equipment

A system may include sensor equipment, a local yard maintenance manager and a remote yard maintenance manager. The sensor equipment includes one or more sensors disposed on a parcel of land. The local yard maintenance manager may be disposed proximate to the parcel and configured to interface with the sensor equipment to monitor growing conditions on the parcel. The remote yard maintenance manager may be disposed remotely with respect to the parcel and configured to interface with the sensor equipment.

Distributed intelligent grounds management system

A battery charging system may include one or more battery packs each of which includes control circuitry and a switching assembly, and a charger including a power section and a charge controller. The charge controller and/or the control circuitry may be configured to direct operation of the switching assembly to control charging of the one or more battery packs.

Battery pack interface system

A system may include sensor equipment, task performance equipment, a yard maintenance manager and a robot. The sensor equipment may include one or more sensors disposed on a parcel of land. The task performance equipment may be configured to perform a task on the parcel. The task may be associated with generating a result that is enabled to be monitored via the sensor equipment. The yard maintenance manager may be configured to interface with the sensor equipment and the task performance equipment to compare measured conditions with desirable conditions to direct operation of the task performance equipment. The robot may be configured to work the parcel and perform at least one of acting as one of the one or more sensors, acting as a device of the task performance equipment, or interacting with the sensor equipment or the task performance equipment.

Intelligent grounds management system integrating robotic rover

Growing community of inventors

Jönköping, Sweden

Martin Larsén